Organic solar battery and preparation method of organic solar battery

A solar cell and organic technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of complex preparation process, large current loss, and high manufacturing cost, and achieve the effects of broadening the absorption spectrum, low cost, and simple manufacturing process.

Active Publication Date: 2013-04-17
CHINA LUCKY FILM CORP
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AI Technical Summary

Problems solved by technology

However, double-junction or multi-junction organic solar energy has the following three disadvantages: first, the currents of all junctions need to be matched, and the preparation process is complicated; second, the carriers need to pass through the adjacent interface recombination area, and the current loss is large; third, the manufacturing cost is high.

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preparation example Construction

[0038] A method for preparing an organic solar cell, the method comprising the steps of:

[0039] 1) Clean the transparent anode. After etching the electrode pattern, use pure water, absolute ethanol, acetone and isopropanol to sonicate for 10 minutes each in sequence; after drying, treat with UV / ozone (power 70W) for 10-20 minutes.

[0040] 2) Depositing a hole transport layer on the surface of the transparent anode treated above. PEDOT:PSS layer can be prepared by any one of spin coating, spray coating, micro gravure coating and slit coating; MoO 3 , V 2 o 5 Or the NiO layer can be prepared by any one of magnetron sputtering, ion sputtering, vacuum evaporation and atomic layer deposition.

[0041] 3) Under the protection of nitrogen, the organic active liquid doped with quantum dot nanoparticles is prepared on the surface of the hole transport layer by any coating method such as spin coating, spray coating, microgravure coating, and slit coating, and heated or Vacuum dr...

Embodiment 1

[0047] 1) Etch the anode pattern with 2cm×3cm PET / ITO (Zhuhai Kaiwei Electronic Components Co., Ltd., square resistance 32Ω / □, transmittance 83%), wash with detergent, and then use pure water and absolute ethanol in sequence , acetone and isopropanol ultrasonic vibration for 10 minutes, after drying, UV / ozone (power 70W) treatment for 10 minutes before use;

[0048] 2) Spin-coat a PEDOT:PSS hole transport layer with a thickness of 42nm on the surface of the transparent anode in air, and dry at 110°C for 10 minutes;

[0049] 3) Under the protection of nitrogen, the organic active layer P3HT (absorbing Peak 535nm): PC 61 BM (P3HT:PC 61 BM:CdSeS=50:50:5, weight ratio), annealed at 130°C for 10min;

[0050] 4) Deposit a LiF electron transport layer with a thickness of 0.7 nm on the surface of the organic active layer by vacuum evaporation;

[0051] 5) With the help of a square mask, vacuum-evaporate Al with a thickness of 120 nm on the surface of the electron transport layer a...

Embodiment 2

[0054] 1) After etching the anode pattern on 2cm×3cm FTO conductive glass (NSG Japan, square resistance 5.1Ω / □, transmittance 86%), wash it with detergent, and then use pure water, absolute ethanol, acetone and isocyanate in sequence. Ultrasonic oscillation with propanol for 10 minutes, after drying, UV / ozone (power 70W) treatment for 20 minutes before use;

[0055] 2) In air, MoO with a thickness of 10 nm was magnetron sputtered on the surface of the above transparent anode 3 hole transport layer;

[0056] 3) Under the protection of nitrogen, in the hole transport layer MoO 3 The organic active layer PBDTTT-C-T (absorption peaks 631nm and 692nm) containing GaAs quantum dot nanoparticles with a particle size of 9.8nm (emission peak 692nm, peak width 26nm) with a thickness of 110nm sprayed on the surface: PC 71 BM (PBDTTT-C-T:PC 71 BM: GaAs=40:60:10, weight ratio), vacuum dried;

[0057] 4) A ZnO electron transport layer with a thickness of 8nm is deposited on the surface o...

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Abstract

The invention relates to an organic solar battery and a preparation method of the organic solar battery. The organic solar battery comprises a positive electrode, a hollow hole transmission layer, an active layer, an electronic transmission layer and a negative electrode, wherein the positive electrode and the negative electrode are transparent electrodes, the active layer comprises an organic donor material, an organic receptor material and quantum dot nanometer particles, and the quantum dot nanometer particles account for 0.1 to 10 weight percent of the active layer. The organic solar battery adopts the technical scheme that the quantum dot nanometer particles with the wavelength emitting spectrum identical to the absorption spectrum of organic semiconductor materials are doped in the active layer, the absorption spectrum of the organic semiconductor materials on sun light is widened, the utilization rate of the organic solar battery on the sun light is enhanced, and the photovoltaic conversion efficiency of the organic solar battery is obviously improved.

Description

technical field [0001] The invention belongs to the technical field of organic photovoltaic devices, and in particular relates to an organic solar cell and a preparation method thereof. Background technique [0002] Organic solar cells (hereinafter referred to as OPV) are the third generation of new solar cells following silicon-based solar cells and compound semiconductor thin-film solar cells. The cheapest and most attractive solar cell materials are none other than organic materials: on the one hand, due to the low synthesis cost of organic materials, easy modulation of functions, good flexibility and film-forming properties; on the other hand, due to the relatively simple processing of organic solar cells, It can be operated at low temperature, and the manufacturing cost of the device is also low. In addition, the unique advantages of organic solar cells are: large-area manufacturing, flexible substrates, environmental friendliness, and portability. [0003] Organic so...

Claims

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Application Information

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IPC IPC(8): H01L51/44H01L51/46H01L51/48
CPCY02E10/549Y02P70/50
Inventor 侯丽新刘贤豪沙印林郑文耀
Owner CHINA LUCKY FILM CORP
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