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A kind of organic thin film solar cell and preparation method thereof

A technology of solar cells and organic thin films, applied in circuits, photovoltaic power generation, electrical components, etc., to achieve the effect of increasing performance and stability, and enhancing adhesion

Inactive Publication Date: 2015-12-09
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an organic thin film solar cell and a preparation method thereof in view of the above-mentioned deficiencies, the purpose is to improve the adhesion between the anode buffer layer and the photoactive layer of the organic thin film solar cell, and solve the problem between the anode buffer layer and the photoactive layer. interface mismatch problem, while increasing the stability of the device and improving the working life of the device

Method used

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  • A kind of organic thin film solar cell and preparation method thereof
  • A kind of organic thin film solar cell and preparation method thereof
  • A kind of organic thin film solar cell and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0092] Such as figure 1 As shown, the substrate (1) is glass, the anode buffer layer (3) is PEDOT:PSS (10nm), the cathode buffer layer (5) is TPBi (10nm), and the metal cathode (6) is Ag (100nm). The photoactive layer (4) is PTB7:PCBM (1:20, 40nm) mixed with ultraviolet sensitive glue, and the mass ratio of the ultraviolet sensitive glue in the photoactive layer is 0.02%.

[0093] The preparation method is as follows:

[0094] ① Thoroughly clean the pre-prepared glass substrate of the transparent conductive anode ITO, and dry it after cleaning;

[0095] ② Spin-coat PEDOT:PSS solution on the surface of transparent conductive anode ITO and anneal the formed film;

[0096] ③ Spin-coat the PTB7:PCBM solution mixed with UV-sensitive adhesive on the surface of the anode buffer layer to prepare the photoactive layer, and anneal the formed film. The raw materials of the UV-sensitive adhesive include the following components:

[0097] Unsaturated polyester resin or acrylic resin 95%...

Embodiment 2

[0105] Such as figure 1As shown, the substrate 1 is glass, the anode buffer layer 3 is PEDOT:PSS (40nm), the cathode buffer layer 5 is TPBi (1nm), and the metal cathode 6 is Ag (300nm). The photoactive layer 4 is PTB7:PCBM (5:1, 250nm) mixed with ultraviolet sensitive glue, and the mass ratio of the ultraviolet sensitive glue in the photoactive layer is 0.05%.

[0106] The preparation method is as follows:

[0107] ① Thoroughly clean the pre-prepared glass substrate of the transparent conductive anode ITO, and dry it after cleaning;

[0108] ② Spin-coat PEDOT:PSS solution on the surface of transparent conductive anode ITO and anneal the formed film;

[0109] ③ Spin-coat the PTB7:PCBM solution mixed with UV-sensitive adhesive on the surface of the anode buffer layer to prepare the photoactive layer, and anneal the formed film. The raw materials of the UV-sensitive adhesive include the following components:

[0110] 96% of unsaturated polyester resin or acrylic resin

[0111...

Embodiment 3

[0118] Such as figure 1 As shown, the substrate 1 is glass, the anode buffer layer 3 is PEDOT:PSS (80nm), the cathode buffer layer 5 is TPBi (8nm), and the metal cathode 6 is Ag (150nm). The photoactive layer 4 is PTB7:PCBM (1:1, 200nm) mixed with ultraviolet sensitive glue, and the mass ratio of the ultraviolet sensitive glue in the photoactive layer is 0.1%.

[0119] The preparation method is as follows:

[0120] ① Thoroughly clean the pre-prepared glass substrate of the transparent conductive anode ITO, and dry it after cleaning;

[0121] ② Spin-coat PEDOT:PSS solution on the surface of transparent conductive anode ITO and anneal the formed film;

[0122] ③ Spin-coat the PTB7:PCBM solution mixed with UV-sensitive adhesive on the surface of the anode buffer layer to prepare the photoactive layer, and anneal the formed film. The raw materials of the UV-sensitive adhesive include the following components:

[0123] 97% of unsaturated polyester resin or acrylic resin

[0124...

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Abstract

The invention discloses an organic thin-film solar cell and a preparation method thereof. The structure includes a substrate, a transparent conductive anode ITO, an anode buffer layer, a photoactive layer, a cathode buffer layer and a metal cathode. The photoactive layer is mixed with an appropriate amount of ultraviolet sensitive glue, and the ultraviolet sensitive glue raw material includes the following components: unsaturated polyester resin or acrylic resin, styrene and its derivatives, photoinitiator, photosensitizer and auxiliary agent. The invention improves the adhesion between the anode buffer layer and the photoactive layer of the organic thin film solar cell, solves the interface mismatch problem between the anode buffer layer and the photoactive layer, increases the stability of the device at the same time, and improves its life span.

Description

technical field [0001] The invention belongs to the field of organic polymer photovoltaic devices or organic semiconductor thin-film solar cells, and in particular relates to an organic thin-film solar cell and a preparation method thereof. Background technique [0002] Issues such as energy shortage and environmental degradation have become important issues facing human survival and development. Due to the over-exploitation of limited non-renewable energy by human beings, the resources of traditional energy such as coal, oil and natural gas on which human beings currently rely are exhausted, and the resulting global energy competition has increasingly entered a white-hot stage. As we all know, the types of clean energy include wind energy, water energy, geothermal energy and solar energy, etc., but the first three are limited by geographical area or development cost, and have not been widely used at present. Solar energy accounts for more than 99% of the total energy of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/00H10K85/00H10K30/20Y02E10/549
Inventor 李杰于军胜王煦王晓
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA