4059 results about "Hole transport layer" patented technology

The invention belongs to the technical field of perovskite solar cells, and particularly discloses a carbazolyl conjugate enhanced self-assembled monomolecular layer and a preparation method and application thereof, and the self-assembled monomolecular layer takes carbazole as a substrate and an aromatic ring as a conjugate linking group. The highly conjugated molecular system can induce molecular orbital overlap, increase dipole moment, promote formation of a compact self-assembled monomolecular film, reduce interface non-radiative recombination and enhance hole extraction and transmission performance. Meanwhile, phosphoric acid is used as an anchoring group, so that firm self-assembly of SAM molecules on the surface of the ITO substrate can be realized. The SAM material is simple in preparation method, high in yield, low in preparation cost and good in stability. When the compound is applied to a trans-perovskite solar cell as a hole transport layer, photoelectric conversion efficiency exceeding 24.6% can be obtained, and the compound is an organic semiconductor material with a very good prospect.

The invention discloses a self-assembled monomolecular layer material with an asymmetric intermediate core and a preparation method and application thereof, and belongs to the field of solar cells. The self-assembled monomolecular layer material is formed by combining an asymmetric intermediate core with anchoring groups such as phosphonic acid and sulfonic acid, has good hydrophobicity and high light transmittance, can be used as a hole transport layer material, and is used for preparing organic solar cells and perovskite solar cells with p-i-n structures, the organic solar cell achieves the maximum energy conversion efficiency of 18.9%, shows excellent environmental stability, still keeps 95% or above of the initial performance after being stored in air for 480 h, and is far superior to a traditional device based on a PEDOT: PSS interface layer. By designing and developing a series of self-assembled monomolecular layer materials with asymmetric intermediate cores, the energy conversion efficiency and environmental stability of the solar cell can be remarkably improved.

The invention relates to the field of solar cells, and discloses a buried interface modified trans-perovskite solar cell and a preparation method thereof. The trans-perovskite solar cell structurally comprises a substrate, a conductive layer, a hole transport layer, a perovskite light absorption layer, an electron transport layer and a metal counter electrode which are sequentially layered, the hole transport layer adopts a hole transport material [4-(3, 6-dimethyl-9H-carbazole-9-yl) butyl] phosphoric acid (Me-4PACz), and the hole transport layer adopts a hole transport material [4-(3, 6-dimethyl-9H-carbazole-9-yl) butyl] phosphoric acid (Me-4PACz). According to bottom-buried interface modification provided by the invention, a hole transport material Me-4PACz is modified by adopting a (2-phenethyl) phosphonic acid small molecule material, the modified Me-4PACz hole transport layer has high perovskite layer coverage rate, the preparation process is simple, the efficiency of the assembled solar cell is high, the stability is obviously improved, and the commercial application value is very good.

The invention belongs to the technical field of perovskite solar cells, and particularly discloses a self-assembly monomolecular film hole transport material based on diphosphoric acid and a preparation method and application thereof.The diphosphoric acid serves as an anchoring group, the chelation between the material and a conductive base can be effectively enhanced, the self-assembly characteristic of the material on the surface of a substrate is improved, and the hole transport efficiency is improved. The compact and smooth self-assembled monomolecular film is formed. Meanwhile, the electron and space effects of alkyl chains or benzene ring connecting units are regulated and controlled, so that the molecular stereo configuration and energy level matching are optimized. The material disclosed by the invention is simple in synthesis steps and low in preparation cost, and industrial synthesis of the material can be realized. When the material is applied to an inverted perovskite solar cell as a hole transport layer, photoelectric conversion efficiency exceeding 24.7% and excellent device stability performance can be obtained, and huge commercial prospects are shown.

The present invention discloses a self-assembled monolayer hole transport material based on an alkyl polyphosphate anchoring group, a synthesis method thereof, and an application in an inverted perovskite solar cell. The present invention uses carbazole or 3,6-diphenylcarbazole with good hole transport properties as a parent core, and achieves complete coverage and stable self-assembly of the material on the substrate surface by improving the anchoring group from traditional alkyl monophosphate to alkyl diphosphate and triphosphate. The synthesis method of the present invention is simple and the synthesis cost is low. The prepared material can achieve the dual functions of hole transport and perovskite interface passivation, while enhancing the self-assembly strength and stability. When the material is used as a hole transport layer in an inverted perovskite solar cell, a photoelectric conversion efficiency of >20% can be obtained without doping, and the material has broad application prospects.

The invention discloses a self-assembled monomolecular layer hole transport material, a hole transport layer and a battery thereof. According to the present invention, the compound having different anchoring groups and represented by the formula (I) can be subjected to firm self-assembly with the substrate surface through the chemical bonding manner, such that the good coverage rate is provided, the film forming quality is increased, and the transmission performance is improved; and meanwhile, the material has a rigid conjugate large-plane condensed ring core structure, so that the hole transmission performance of the material is ensured, and the photovoltaic performance is favorably improved. When the material is applied to a perovskite solar cell to prepare a hole transport layer, the hole extraction capability can be enhanced, and the open-circuit voltage, the filling factor and the photoelectric conversion efficiency of a device can be improved.

The invention discloses a thiapyran molecule modified solar cell and a preparation method thereof. The cell sequentially comprises an ITO (Indium Tin Oxide) conductive glass layer, a 4-aminotetrahydro-2H-thiapyran-1, 1-dioxide hydrochloride modified [4-(3, 6-dimethoxy-9H-carbazole-9-yl) butyl] phosphonic acid hole transport layer, a Cs0.05 (FA < 0.77 > MA < 0.23 >) < 0.95 > Pb < (I < 0.77 > Br < 0.23 >) 3 wide-band gap perovskite thin film, a phenethyl ammonium iodide passivation layer, an electron transport layer of [6, 6]-phenyl-C61-butyric acid isomethyl ester, a 2, 9-dimethyl-4, 6, 7-tetrahydro-2H-thiapyran-1, 1-dioxide hydrochloride modified [4-(3, 6-dimethoxy-9H-carbazole-9-yl) butyl] the hole barrier layer is made of 1, 7-biphenyl-1, 10-phenanthroline; the electrode layer is made of metal Ag; according to the scheme, the hole transport layer is modified through thiapyran molecules, agglomeration of the hole transport layer is relieved, and a more compact and more uniform self-assembled single layer is generated by inducing favorable crystal orientation. A good bottom interface is obtained based on thiapyran molecule modification, and ordered growth of high-quality perovskite crystal grains is promoted. In addition, the energy level of the hole transport layer is effectively adjusted through thiapyran molecule treatment, and the extraction and transmission of carriers by the hole transport layer are enhanced.

The invention provides a perovskite laminated photovoltaic cell assembly and a preparation method thereof, the perovskite laminated photovoltaic cell assembly comprises a plurality of first battery packs connected in parallel, each first battery pack comprises a plurality of laminated cells connected in series, and each laminated cell comprises a perovskite cell and a crystalline silicon cell which are stacked; a first light absorption layer and a first hole transport layer of the perovskite cell are etched by P2 laser to form a plurality of perovskite sub-cells which are connected in parallel, and the perovskite cell is used for absorbing short-wavelength light in front sunlight; the second hole transport layer and the intermediate electrode layer of the crystalline silicon cell are etched by P1 laser to form a plurality of crystalline silicon sub-cells which are connected in parallel, the perovskite cell is used for absorbing long-wavelength light in front sunlight, and the absolute value of the difference between the current density of the perovskite cell and the current density of the crystalline silicon cell is smaller than or equal to a first preset value. According to the laminated battery piece, the current density consistency of the perovskite battery and the crystalline silicon battery in the laminated battery piece is high, the electrical loss can be reduced, and the power generation efficiency can be improved.

The invention discloses a perovskite solar cell buried interface modifier and a preparation method and application thereof, and belongs to the technical field of photovoltaic solar materials. The 2-(benzoylamino) benzoic acid serves as a perovskite solar cell buried interface modifier, the molecule has a structure shown in a formula (1), the molecule takes benzoic acid as an anchoring group and is used for modifying a hole transport layer NiOx / perovskite interface layer, defects at a NiOx / perovskite layer thin film crystal boundary are reduced, the morphology of the perovskite layer thin film is regulated and controlled, and the performance of the perovskite solar cell is improved. The charge transfer capability of the NiOx / perovskite layer interface is enhanced, the interface reaction and carrier recombination are inhibited, the photoelectric conversion efficiency and stability of the perovskite solar cell are improved, and a new preparation way is provided for preparing the efficient and stable perovskite solar cell. # imgabs0 #

The invention relates to the technical field of solar cells, and mainly provides a perovskite solar cell and a preparation method thereof. The perovskite solar cell comprises a substrate, a transparent conductive oxide layer, an anchoring layer, a hole transport layer, a perovskite light absorption layer, an electron transport layer and a top electrode which are stacked in sequence, wherein the material of the anchoring layer comprises a metal oxide; and the material of the hole transport layer comprises a self-assembly molecular material. According to the perovskite solar cell in the technical scheme of the invention, the anchoring point of the SAM is enhanced, the long-term stability of the perovskite cell is improved, and the efficiency loss caused by local electric leakage is reduced.

The embodiment of the invention provides a laminated cell and a preparation method of the laminated cell, the laminated cell comprises a top cell unit, a bottom cell unit and a composite layer located between the top cell unit and the bottom cell unit, the composite layer has a first surface facing the top cell unit along the thickness direction of the laminated cell, and the first surface is provided with a second surface facing the bottom cell unit. A first passivation isolation layer is arranged on the first surface, and the surface area of the first passivation isolation layer is smaller than that of the first surface. By arranging the first passivation isolation layer on the first surface, the separation effect on the perovskite layer and the composite layer can be improved, the phenomenon of contact between the perovskite layer and the composite layer is reduced, and the possibility of electric leakage of the laminated cell is remarkably reduced, so that the working performance of the laminated cell is ensured. And the surface area of the first passivation isolation layer is smaller than that of the first surface, so that carriers can circulate between the hole transport layer and the composite layer, and normal use of the laminated cell is ensured.

An organic light-emitting device comprises an anode, a cathode and an organic layer formed between the anode and the cathode, and the organic layer comprises a hole injection layer, a hole transmission area, an electron blocking layer, a light-emitting area and an electron transmission area. The hole transport region comprises a first material and a second material, the first material and the second material are sequentially evaporated to form two hole transport layers, and the first material is selected from a compound shown in the formula 1; and the second material is selected from a compound shown in a formula 2. According to the invention, the first material with a high refractive index is used as the first hole transport layer, the second material with a low refractive index is used as the second hole transport layer, and the structures of the first material and the second material are respectively limited at the same time. The invention overcomes the limitation of a single material or a simple mixed material in the aspects of hole transport and luminous efficiency. .

The invention relates to the technical field of solar cells, in particular to a perovskite solar cell, a preparation method thereof and a photovoltaic module. The invention aims to solve the problem that the cell performance is influenced by non-uniform coverage of the perovskite layer on the hole transport layer. For the purpose, the preparation method of the perovskite solar cell comprises the steps of preparing a hole transport layer on a substrate, preparing an interface modification layer on the hole transport layer, preparing a perovskite layer on the interface modification layer, and sequentially preparing an electron transport layer and an electrode on the perovskite layer to obtain the perovskite cell, the wettability of the hole transport layer can be improved by introducing 3-hydroxyphenylboronic acid into the adjacent interface of the perovskite layer and the hole transport layer, so that the coverage rate of the perovskite layer is increased, meanwhile, the 3-hydroxyphenylboronic acid is coordinated with metal ions in the perovskite layer, non-radiative recombination between the hole transport layer and the perovskite layer interface can be reduced, and the hole transport efficiency is improved. And the carrier transmission efficiency is improved.

The invention provides a vertical structure ultraviolet photoelectric detector and a preparation method thereof. The ultraviolet photoelectric detector is of a vertical structure, the design facilitates light absorption of the ultraviolet photoelectric detector, the light utilization rate of the ultraviolet photoelectric detector is improved, and compared with a horizontal structure, the transmission distance is shortened, and the cost is low; the ultraviolet photoelectric detector provided by the invention has a relatively high switching ratio of light and dark current and relatively small dark current, and also has a very high response speed under the condition of keeping the switching ratio of light and dark current and the dark current; a PN junction is formed between the nickel oxide hole transport layer and the beta-phase gallium oxide single crystal, so that the ultraviolet photoelectric detector has self-driving performance; in the manufacturing process, the substrate is used as a supporting frame, and the extraction electrode is packaged in one step through the conductive adhesive tape, so that 3-5 photoetching steps of a traditional horizontal structure are omitted, the process is simplified, and the process manufacturing is simpler.

The invention discloses a perovskite solar cell based on 1, 2PDADI (1, 2-propane diamine hydriodic acid) interface modification and a preparation method thereof, and belongs to the technical field of perovskite solar photovoltaics. The device structure of the cell sequentially comprises ITO conductive glass, a SnO2 electron transport layer, a 1, 2PDADI modification layer, a perovskite light absorption layer, a hole transport layer and an Ag counter electrode from bottom to top, the preparation method specifically comprises the following steps: (1) cleaning and blow-drying the ITO conductive glass; (2) spin-coating SnO2 nano dispersion liquid, and carrying out annealing treatment; (3) spin coating of a 1, 2PDADI / IPA solution is carried out, and annealing treatment is carried out; (4) spin-coating a perovskite precursor solution, and performing annealing treatment; (5) spin coating of a Spiro-OMeTAD precursor solution is carried out, and oxidation treatment is carried out; and (6) carrying out vacuum evaporation on an Ag counter electrode to obtain the 1, 2PDADI interface modified perovskite solar cell. The preparation process is simple and convenient, the cost is low, the prepared perovskite solar cell is small in hysteresis effect and high in photoelectric conversion efficiency, and a feasible thought and method are provided for commercialization of the perovskite solar cell.

The embodiment of the invention provides a perovskite cell, a preparation method thereof and a laminated cell. The perovskite cell comprises a conductive substrate, an inorganic hole transport layer, an organic hole transport layer, a perovskite absorption layer, an electron transport layer and an electrode which are sequentially arranged in a preset direction. Wherein the organic hole transport layer comprises a first hole transport material and a second hole transport material; the first hole transport material comprises a carbazole hole material with a phosphate group; the second hole transport material includes (2-(pyrene-1-yl) ethyl) phosphonic acid. The perovskite cell provided by the embodiment of the invention has a good buried bottom passivation effect, so that energy levels between the hole transport layer and the perovskite absorption layer can be better matched, the carrier extraction rate is improved, the overall cell parameters are improved, and the problem of poor performance of the perovskite cell is solved. The embodiment of the invention also provides a preparation method of the perovskite cell and a laminated cell applying the perovskite cell.

The invention discloses a modified hole transport layer and a preparation method thereof, a perovskite solar cell and a power utilization device, and belongs to the technical field of solar cells. The modified hole transport layer comprises a hole transport layer and a modified layer arranged on the surface of one side, far away from a substrate, of the hole transport layer; the material of the hole transport layer comprises a self-assembly single-layer material and an organic amine salt; and the material of the modified layer comprises organic amine salt. The organic amine salt is used as an additive to modify the self-assembled single-layer material to prepare the hole transport layer, and the organic amine salt is further used as a surface treating agent to modify the hole transport layer, so that the problems of distribution uniformity and surface wettability of the self-assembled single-layer material can be solved; the efficiency of the large-area perovskite assembly is effectively improved, and the large-area processing requirement is met.

The invention provides an intermediate layer structure for a solar cell and a preparation method and application thereof. The intermediate layer structure comprises a transparent conductive oxide layer, a self-assembled monomolecular hole transport layer and a self-assembled monomolecular connecting layer for connecting the transparent conductive oxide layer and the self-assembled monomolecular hole transport layer, the material of the self-assembled monomolecular hole transport layer is a self-assembled monomolecular material with a phosphonic acid end group; the material of the self-assembled monomolecular connecting layer is selected from one or two of a silane self-assembled monomolecular layer material or a carboxylic acid self-assembled monomolecular layer material, and the silane self-assembled monomolecular layer material and the carboxylic acid self-assembled monomolecular layer material have sulfydryl groups; the problems that in the prior art, the material coverage rate of a self-assembled monomolecular hole transport layer on a TCO is low, and the material distribution of the self-assembled monomolecular hole transport layer is not uniform are solved.

The invention discloses a perovskite solar cell based on perovskite thin film crystallization control and a preparation method thereof, and the method comprises the steps: carrying out the spin coating and deposition of a hole transport layer on conductive glass, customizing and synthesizing small organic molecules with different functional groups through a Michael addition reaction, and taking the small organic molecules as a perovskite precursor additive to prepare a perovskite precursor solution; the perovskite thin film is prepared on the indium tin oxide transparent conductive glass deposited with the hole transport material through an anti-solvent method, and after annealing treatment, the thin film is flat and compact in surface, large in grain size and low in defect state density, and the crystal orientation is perpendicular to a substrate. Spin-coating the passivation layer precursor solution to form a passivation layer; performing vacuum thermal evaporation on the passivation layer to form an electron transport layer material; and sequentially carrying out thermal evaporation on a barrier layer material and a metal electrode on the electron transport layer material to obtain the perovskite solar cell. The prepared trans-perovskite solar cell has excellent photoelectric conversion efficiency and excellent device stability.

The present application relates to a solar cell and a preparation method therefor, and a photovoltaic assembly, a system and an electric apparatus. The solar cell comprises a first electrode layer, a first hole transport layer, a perovskite light absorption layer and a second electrode layer, which are arranged in a stacked manner, wherein components of the first hole transport layer comprise P-type tin oxide. The solar cell has a relatively high photoelectric conversion efficiency.

The invention provides a method for improving the efficiency of a perovskite solar cell, and relates to the technical field of solar cells, the cell structure sequentially comprises a bottom substrate, a transparent electrode, a hole transport layer, a perovskite light absorption layer, an interface modification layer, an electron transport layer, a buffer layer and a metal electrode from bottom to top; a new additive 4-(2-aminoethyl) benzenesulfonic acid hydrochloride is introduced into the perovskite light absorption layer, the additive is introduced into the perovskite light absorption layer by being dissolved in a perovskite precursor solution, and the dosage of the additive is 0.1-1.5 mg / mL. Based on the method, the defect density of shallow energy level and deep energy level of perovskite is reduced, a more intrinsic perovskite absorption layer is formed through induction, balance extraction of electrons and holes is promoted, and then the open-circuit voltage and efficiency of the solar cell are remarkably improved.

The invention discloses a perovskite solar cell, a preparation method thereof, a cell module and a laminated cell. The perovskite solar cell comprises a composite hole transport layer and a perovskite light absorption layer, the perovskite light absorption layer is located on one side of the composite hole transport layer, and the composite hole transport layer comprises polyvinyl acetate and an SAM material. Therefore, the polyvinyl acetate is of a cross-linked network structure and can play a role in stabilizing the SAM material and inhibiting the SAM material from diffusing to the perovskite light absorption layer, so that the stability of the self-assembled monomolecular layer is improved, and the stability of the perovskite solar cell is improved; in the perovskite solar cell, carbonyl oxygen in polyvinyl acetate can be coordinated with uncoordinated metal ions in the perovskite light absorption layer to realize passivation of a bottom interface of the perovskite light absorption layer, so that interface recombination is reduced, and the performance of the perovskite solar cell is improved.

Disclosed in the disclosure are a light-emitting device and a preparation method therefor. The light-emitting device includes a positive electrode, a hole transport layer, a light-emitting layer, and a negative electrode, which are arranged in a stacked manner.

The invention discloses a metal organic framework material, a preparation method thereof and a perovskite battery, and belongs to the technical field of perovskite batteries. The preparation method comprises the following steps: dissolving 1, 2, 4, 5-benzene tetracarboxylic acid in an organic solvent, adding ZrCl4 and a regulator acetic acid, carrying out a heating reaction to obtain a reactant, and carrying out centrifugation, washing and vacuumizing on the reactant to obtain the metal organic framework material. The metal organic framework material has high-density free carboxyl and a nano structure, the high-density free carboxyl can achieve the purpose of adsorbing lithium ions, and the nano structure can obtain better dispersity. When the metal organic framework material is applied to a hole transport layer of a perovskite battery, lithium ions can be well adsorbed, free carboxyl groups can also form chemical bonds with Pb ions of a perovskite active layer, surface defects and unsaturated bonds of the perovskite active layer are reduced, compounding of electrons and holes is prevented, and the performance of the perovskite battery is improved. Therefore, the electrochemical performance and the stability of the perovskite battery are improved.

The invention belongs to the technical field of solar cells, and relates to a perovskite laminated cell and a preparation method thereof, the perovskite laminated cell can reduce light parasitic absorption, the perovskite laminated cell comprises a bottom crystalline silicon cell, the bottom crystalline silicon cell comprises a substrate, the substrate comprises a first surface and a second surface which are opposite to each other, a first tunneling oxide layer and a first composite passivation layer are sequentially arranged on the first surface in the direction perpendicular to and away from the first surface, and the first composite passivation layer comprises first doped crystalline silicon conductive regions and first wide-band gap conductive regions which are alternately arranged in the direction parallel to the first surface; the top perovskite cell is arranged on the first composite passivation layer and is electrically connected with the bottom crystalline silicon cell, and the top perovskite cell comprises a hole transport layer, a perovskite active absorption layer, an electron transport layer, an interface buffer layer, a transparent conductive layer and an anti-reflection layer which are sequentially far away from the first composite passivation layer; and a first electrode in electrical contact with the transparent conductive layer.

Disclosed are a perovskite solar cell and a fabrication method thereof. The perovskite solar cell includes an electron transport layer, a perovskite layer, and a hole transport layer, where the hole transport layer includes an inorganic substance serving as a hole transport material, and an organic layer including a carbazole derivative is formed on the hole transport layer. A combination of a carbazole derivative and an inorganic material serving as a hole transport layer can allow the preparation of a perovskite solar cell with a high conversion efficiency.

The invention relates to the technical field of solar cells, in particular to a trans-perovskite solar cell and a preparation method thereof. The structure of the trans-perovskite solar cell sequentially comprises a conductive substrate layer, a hole transport layer, a lower interface passivation layer, a perovskite light absorption layer, an upper interface passivation layer, an electron transport layer, a buffer layer and a top electrode from bottom to top, wherein the material of the upper interface passivation layer is a DSA and PEAI double-interface material. According to the invention, DSA and PEAI are introduced into the upper interface of the trans-perovskite solar cell to passivate a plurality of different defects and improve the photoelectric conversion efficiency and stability of the perovskite solar cell.

The invention discloses a solar cell module, a preparation method, electric equipment and power generation equipment, the solar cell module comprises a hole transport layer, a light absorption layer and a passivation layer, the hole transport layer comprises a first hole transport layer and a second hole transport layer, and the second hole transport layer is provided with a plurality of pores; the surface, close to the second hole transport layer, of the passivation layer is at least partially embedded in the pores of the second hole transport layer, and the surface, away from the second hole transport layer, of the passivation layer is uneven. According to the embodiment of the invention, good hole transport efficiency is provided through the first hole transport layer; the contact area between the second hole transport layer and the light absorption layer is increased through the second hole transport layer with a plurality of pores, and the hole extraction rate is improved; the hole transmission efficiency is improved through the passivation layer; the hole transport layer and the passivation layer are cooperatively used, so that the device performance of the corresponding solar cell module is improved.

The invention belongs to the photovoltaic field, and particularly relates to a self-assembled monolayer (SAMs), a perovskite solar cell and a preparation method. The self-assembled monolayer comprises a self-assembled monolayer molecule and a thiophene organic matter. The thiophene organic matter forms a frame structure after SAMs film forming, the stability of SAMs can be improved, meanwhile, the carrier transport efficiency of a hole transport layer is improved through the pi-pi conjugation effect, and the performance of a device is improved.

The invention relates to a perovskite solar cell, which comprises a substrate, a hole transport layer, a perovskite film layer, an electron transport layer and an electrode layer, the perovskite film layer comprises a perovskite material ABX3 and an additive, the additive contains an electron withdrawing group, the additive and the perovskite material are mixed to form the perovskite film layer, and the hole transport layer is arranged between the hole transport layer and the perovskite film layer. A modification material layer is arranged between the perovskite film layer and the electron transport layer, and the modification material layer forms n-type doping on a contact interface of the perovskite film layer. According to the cell, diethyl (3-(trifluoromethyl) benzyl) phosphonate is doped in a perovskite film layer, so that intrinsic weak n-type perovskite is converted into a p-type perovskite at a position close to a hole transport layer, and a surface modification material is arranged between the perovskite film layer and an electron transport layer, so that the perovskite film layer close to the electron transport layer is converted into an n-type perovskite film layer, an efficient p-n junction is formed, and the photoelectric conversion efficiency of the cell is improved. And the efficiency of the perovskite cell is improved.