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A kind of polymer solar cell and preparation method thereof

A technology of solar cells and polymers, applied in circuits, photosensitive devices, photovoltaic power generation, etc., can solve the problems of low photoelectric conversion efficiency, high research and development costs, and low proportion, and achieve improved light absorption rate and energy conversion efficiency, Low cost, anti-oxidation effect

Active Publication Date: 2017-03-08
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Immediately afterwards, Glenis and others made various polythiophene solar cells, but the problems that existed at that time were extremely low open circuit voltage and low photoelectric conversion efficiency.
[0004] At present, the structure of the active layer material is often changed to enhance its absorption rate of sunlight, thereby improving the energy conversion efficiency, but this method has the disadvantages of high research and development costs and long time
However, when sunlight irradiates on the active layer, the proportion of the part that can be absorbed and utilized is low, and most of it passes through the battery and cannot be utilized. Therefore, by improving the composition or structure of the polymer solar cell, the solar cell’s ability to absorb sunlight can be improved. Utilization rate is also an important way to improve energy conversion efficiency, and there are few related technologies at present

Method used

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  • A kind of polymer solar cell and preparation method thereof
  • A kind of polymer solar cell and preparation method thereof
  • A kind of polymer solar cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A kind of polymer solar cell, preparation method comprises the following steps:

[0056] (1) The glass is subjected to photolithography treatment, cut according to the size of 2×2cm, and the illuminated area is 0.3×0.3cm. Sonicate with detergent, deionized water, acetone, ethanol, and isopropanol for 15 minutes each to remove the glass surface. Organic Pollutants;

[0057] (2) High vacuum coating equipment (Shenyang Scientific Instrument Development Center Co., Ltd., pressure -3 Pa) sequentially vapor-deposit cathode Al and electron buffer layer Cs 2 CO 3 , the pressure is 5×10 when evaporating the cathode -4 Pa, the evaporation rate is 5nm / s, and the thickness is 15nm; the pressure when evaporating the electron buffer layer is 5×10 -4 Pa, the evaporation rate is 0.2nm / s, and the thickness is 2nm;

[0058] (3) Then prepare the active layer: add 5mg P3HT and 4mg PCBM in 0.5ml chlorobenzene, stir and dissolve to obtain a mixed solution of P3HT and PCBM, the concentrat...

Embodiment 2

[0063] A kind of polymer solar cell, preparation method comprises the following steps:

[0064] (1) The glass is subjected to photolithography treatment, cut according to the size of 2×2cm, and the illuminated area is 0.3×0.3cm. Sonicate with detergent, deionized water, acetone, ethanol, and isopropanol for 15 minutes each to remove the glass surface. Organic Pollutants;

[0065] (2) High vacuum coating equipment (Shenyang Scientific Instrument Development Center Co., Ltd., pressure -3 Pa) sequentially vapor-deposit cathode Ag and electron buffer layer LiF, the pressure of vapor-deposition cathode is 5×10 -3 Pa, the evaporation rate is 10nm / s, the thickness is 10nm, and the pressure when evaporating the electron buffer layer is 5×10 -3 Pa, the evaporation rate is 1nm / s, and the thickness is 0.7nm;

[0066] (3) Then prepare the active layer: add 4.8mg P3HT and 19.2mg PCBM into 1ml chloroform, stir and dissolve to obtain a mixed solution of P3HT and PCBM, the concentration of ...

Embodiment 3

[0070] A kind of polymer solar cell, preparation method comprises the following steps:

[0071] (1) The glass is subjected to photolithography treatment, cut according to the size of 2×2cm, and the illuminated area is 0.3×0.3cm. Sonicate with detergent, deionized water, acetone, ethanol, and isopropanol for 15 minutes each to remove the glass surface. Organic Pollutants;

[0072] (2) High vacuum coating equipment (Shenyang Scientific Instrument Development Center Co., Ltd., pressure -3 Pa) sequentially vapor-deposit cathode Au and electron buffer layer Cs 2 CO 3 , the pressure is 2×10 when evaporating the cathode -5 Pa, the evaporation rate is 1nm / s, the thickness is 30nm, and the pressure when evaporating the electron buffer layer is 2×10 -5 Pa, the evaporation rate is 0.1nm / s, and the thickness is 0.5nm;

[0073] (3) Prepare active layer then: add 4mg P3HT and 12mg PCBM in 1ml chloroform, stir and dissolve to obtain P3HT and PCBM mixed solution, the concentration of P3HT...

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Abstract

A polymer solar cell and a preparation method thereof are provided. The preparation method is as follows: a cathode (2), an electron buffer layer (3) and an active layer (4) are sequentially prepared on a clean glass substrate (1), and the active layer (4) ) to prepare the anode (5), the step is to dissolve poly-3,4-dioxyethylene thiophene and poly-p-styrene sulfonic acid to obtain a solution of poly-3,4-dioxyethylene thiophene and poly-p-styrene sulfonic acid, and oxidize Dissolving zinc in acetic acid to obtain a zinc oxide solution, mixing the zinc oxide solution with poly(3,4-dioxyethylene thiophene) and poly(p-styrene sulfonic acid) solution to obtain a mixed solution, and spin-coating the mixed solution on the active layer (4) drying to prepare an anode (5), and finally to obtain a polymer solar cell. Using the difference in refractive index between the anode and the active layer to improve the light absorption rate and energy conversion efficiency of the polymer solar cell, the preparation process is simple, and the inverted structure is used to improve the life of the polymer solar cell, making the product and method industrialized Applied prospects.

Description

technical field [0001] The invention relates to the technical field of organic solar cells, in particular to a polymer solar cell and a preparation method thereof. Background technique [0002] In 1982, Weinberger et al. studied the photovoltaic properties of polyacetylene and produced the first real solar cell, but the photoelectric conversion efficiency was extremely low at that time, only 10 -3 %. Immediately afterwards, Glenis et al. produced various polythiophene solar cells, but the existing problems at that time were extremely low open circuit voltage and low photoelectric conversion efficiency. It was not until 1986 that C.W.Tang introduced p-type semiconductor and n-type semiconductor into the double-layer solar cell device for the first time, which greatly improved the photocurrent. Taking this work as a milestone, organic polymer solar cells flourish. [0003] A polymer solar cell with a double-layer structure includes positive and negative electrodes and a thi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/00H01L51/42H01G9/20H10K99/00
CPCH10K85/1135H10K30/81Y02E10/549Y02P70/50H10K30/82H10K2102/101H10K71/15H10K30/353H10K85/111
Inventor 周明杰王平黄辉陈吉星
Owner OCEANS KING LIGHTING SCI&TECH CO LTD