Perovskite solar cell capable of being rapidly annealed in air and preparation method of perovskite solar cell

A solar cell and rapid annealing technology, applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problems of unfavorable perovskite film formation and easy decomposition, achieve enhanced crystallinity, large grain size, and reduce production costs Effect

Pending Publication Date: 2022-01-07
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another major reason why it is difficult to obtain high-quality perovskite films in ambient air may be that thermal annealing usually induces non-uniform nucleation, which is no

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  • Perovskite solar cell capable of being rapidly annealed in air and preparation method of perovskite solar cell
  • Perovskite solar cell capable of being rapidly annealed in air and preparation method of perovskite solar cell
  • Perovskite solar cell capable of being rapidly annealed in air and preparation method of perovskite solar cell

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Example Embodiment

[0040] Example 1

[0041] In this embodiment, the preparation method of a perovskite solar cell in an air in an air, comprising the steps of:

[0042] S1: Base Cleaning: Cut the large block of conductive glass FTO into 1.5 × 2 cm size size with a glass knife, wipe it clean with acetone, then place it in deionized water, acetone, isopropanol, and ethanol. Ultrasound washed 20 min, and the dry treatment was carried out after drying of 1.5 min, an ultraviolet ozone treatment was carried out using a nitrogen gun.

[0043] S2: Preparation of Electronic Transportation: A commercial 15% SNO 2 The colloidal aqueous solution and deionized water were prepared from the mass ratio of 2.5% SNO. 2 The colloid solution is stirred for use. Pipetto 100 μL of SNO with pipette 2 The precursor solution is evenly dripped on the treated FTO transparent conductive substrate, and the spin coating conditions are low-speed 500rpm last for 10s, and the high speed 4000rpm lasts 30s, and annealed at 150 ° C o...

Example Embodiment

[0051] Example 2

[0052] In this embodiment, the method of preparing a perovskite solar cell in an air, the present embodiment and the first embodiment are:

[0053] Preparation of calcium titanium ore: Pure PBI 2 With MAI mass ratio 1: 1 dissolved in a mixed solvent of dimethylformamide (DMF) and dimethyl sulfoxide (DMSO) (V 1 : V 2 = 4: 1), where MASCN was added thereto at 60% molar ratio, then stirred at 60 ° C at a temperature of 60 ° C, resulting in five different doped proportions of 1.3 m, and the stirring was completed. The solution was filtered. Use a pipette to take a 50 μl of titanium titanium ore precursor solution, uniformly tile in UV odor-treated SNO 2 On the electron transport layer substrate, the spin coated 30s at a rotational speed of 4000 rpm, and EA is rapidly added to the first 15S in the spin coating. The perovskite intermediate phase thin film was annealed for 0min, 3 min, 5 min, 7 min, 10 min, and 30 min to obtain a perovskite absorbing layer.

[0054] F...

Example Embodiment

[0056] Example 3

[0057] In this embodiment, the method of preparing a perovskite solar cell in an air, the present embodiment and the first embodiment are:

[0058] Preparation of calcium titanium ore: Pure PBI 2 With MAI mass ratio 1: 1 dissolved in a mixed solvent of dimethylformamide (DMF) and dimethyl sulfoxide (DMSO) (V 1 : V 2 = 9: 1), where MASCN is added thereto at 60% molar ratio, after stirring at 60 ° C for one night, obtaining a five different doping proportion of 1.25 m, and the solution is carried out after stirring filter. Use a pipette to draw a 50 μl of titanium-titanium pyroscopic solution, uniformly laying in UV ozone treatment SNO 2 On the electron transport layer, 30s of the 5000 rpm rotational speed, and EA is rapidly added to the start of the first 17s of the spin coating. The perovskite intermediate phase thin film was annealed for 0min, 3 min, 5 min, 7 min, 10 min, and 30 min to obtain a perovskite absorbing layer.

[0059] Figure 7 As shown, the short-...

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Abstract

The invention discloses a perovskite solar cell capable of being rapidly annealed in air and a preparation method of the perovskite solar cell. The structure of the perovskite solar cell sequentially comprises transparent conductive glass, an electron transport layer, a perovskite light absorption layer, a passivation layer, a hole transport layer and a metal electrode layer from bottom to top. The preparation process of the perovskite light absorption layer in the air does not need to control the environment humidity, and the cost of large-scale industrialization of the perovskite solar cell is greatly reduced. Particularly, when the doping proportion of MASCN serving as a doping agent in the perovskite light absorption layer reaches the optimal, the crystallinity of the perovskite thin film is remarkably enhanced, the perovskite thin film has the characteristics of large grain size and single orientation of the (110) crystal face direction, and the efficient and stable perovskite solar cell can be prepared only by extremely short annealing time.

Description

technical field [0001] The invention relates to the technical field of perovskite solar cells, in particular to a perovskite solar cell rapidly annealed in air and a preparation method thereof. Background technique [0002] The utilization of renewable and clean energy is an effective means to solve future energy shortages and environmental problems. Manufacturing solar cells with high photoelectric conversion efficiency, low cost, and environmental safety is a challenge in the energy field. Hybrid lead halide perovskite solar cells (PSCs) have attracted much attention as next-generation commercial photovoltaic materials due to their simple structure, low fabrication cost, and excellent photovoltaic performance. In recent years, the power conversion efficiency (PCE) of PSCs has increased rapidly from 3.8% to more than 25%, and the preparation of high-quality perovskite thin films is the key to obtaining high conversion efficiency perovskite solar cells. [0003] Compared w...

Claims

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Application Information

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IPC IPC(8): H01L51/46H01L51/42H01L51/48
CPCH10K71/12H10K71/40H10K85/30H10K30/30Y02E10/549
Inventor 台启东王珍朱振坤
Owner WUHAN UNIV
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