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Integrated solar battery based on perovskite solar battery and bulk heterojunction solar battery and preparation method thereof

A solar cell and bulk heterojunction technology, applied in the field of solar cells, can solve the problem of poor absorption of perovskite materials, etc., achieve the effect of simple method, good application prospect, and improvement of short-circuit current and energy conversion efficiency

Active Publication Date: 2014-12-10
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic materials with narrow band gaps can absorb a wider range of sunlight, but absorb less light at shorter wavelengths than perovskite materials

Method used

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  • Integrated solar battery based on perovskite solar battery and bulk heterojunction solar battery and preparation method thereof
  • Integrated solar battery based on perovskite solar battery and bulk heterojunction solar battery and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0052] First PEDOT:PSS (Clevios TM P VP AI 4083) was spin-coated on the surface of pretreated ITO glass at a speed of 4000rpm, and heated at 150°C in air for 10min to obtain a 30nm thick PEDOT:PSS film; CH with a molar ratio of 3:1 3 NH 3 I and PbCl 2 Mix and dissolve in DMF to obtain a solution with a concentration of 20wt%, spin-coat it on the PEDOT:PSS film at a speed of 3000rpm in a glove box, and heat at 80°C for 120min to obtain a 100nm CH 3 NH 3 PB 3-x Cl x film; combining PDPP3T and PC 61 BM was mixed and dissolved in chlorobenzene or other solvents at a mass ratio of 1:2 to obtain a solution with a total concentration of 8 mg / mL, which was spin-coated on CH at a speed of 1200 rpm. 3 NH 3 PB 3-x Cl x On the thin film, a 30nm organic blend layer is obtained; in high vacuum (-4 Pa), vapor-deposit 0.5nm fluoride and 70nm aluminum electrodes to complete the battery preparation. After testing, the battery efficiency is 11.5%.

Embodiment 2

[0054] First PEDOT:PSS (Clevios TM P VP AI 4083) was spin-coated on the surface of pretreated ITO glass at a speed of 4000rpm, and heated at 150°C in air for 10min to obtain a 30nm thick PEDOT:PSS film; CH with a molar ratio of 3:1 3 NH 3 I and PbCl 2 Mix and dissolve in DMF to obtain a solution with a concentration of 30wt%, spin-coat it on the PEDOT:PSS film at 3000rpm in a glove box, heat at 90°C for 90min, and obtain a 150nm CH 3 NH 3 PB 3-x Cl x film; PMDPP3T and PC 61 BM was mixed and dissolved in chlorobenzene or other solvents at a mass ratio of 1:1.5 to obtain a solution with a total concentration of 12 mg / mL, which was spin-coated on CH at a speed of 1200 rpm. 3 NH 3 PB 3-x Cl x On the thin film, a 50nm organic blend layer is obtained; in high vacuum (-4 Pa), vapor-deposit 0.8nm fluoride and 100nm aluminum electrodes to complete the battery preparation. After testing, the battery efficiency is 11.1%.

Embodiment 3

[0056] First PEDOT:PSS (Clevios TM P VP AI 4083) was spin-coated on the surface of pretreated ITO glass at a speed of 4000rpm, and heated at 150°C in air for 10min to obtain a 30nm thick PEDOT:PSS film; CH with a molar ratio of 3:1 3 NH 3 I and PbCl 2 Mix and dissolve in DMF to obtain a solution with a concentration of 50wt%, spin-coat it on the PEDOT:PSS film at 3000rpm in a glove box, heat at 100°C for 60min, and obtain a 400nm CH 3 NH 3 PB 3-x Cl x film; PMDPP3T and PC 71 BM was mixed and dissolved in chlorobenzene or other solvents at a mass ratio of 1:4 to obtain a solution with a total concentration of 20 mg / mL, which was spin-coated on CH at a speed of 1200 rpm.3 NH 3 PB 3-x Cl x On the thin film, a 120nm organic blend layer is obtained; in high vacuum (-4 Pa), evaporating 10nm calcium and 150nm aluminum electrodes to complete the battery preparation. After testing, the battery efficiency is 12.2%.

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Abstract

The invention relates to an integrated solar battery based on a perovskite solar battery and a bulk heterojunction solar battery and a preparation method thereof. The integrated solar battery comprises a transparent electrode, a hole transport layer, a perovskite light absorbing layer, an organic substance blending layer, a random hole block layer and a metal electrode in sequence from the bottom to top. Through preparing the perovskite solar battery and the bulk heterojunction solar battery into the integrated battery, the integrated solar battery based on the perovskite solar battery and the bulk heterojunction solar battery overcomes the disadvantages of narrow light absorbing range of the perovskite solar battery and weak visible light region absorption of the narrow-gap bulk heterojunction solar battery, improves the sunlight use range and improves the energy conversion efficiency. The integrated battery has the similar features to a parallel battery, the conversion efficiency is capable of breaking through the theoretical boundary of the energy conversion efficiency of the single-junction solar battery, and the application prospect is good.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to an integrated solar cell based on a perovskite solar cell and a bulk heterojunction solar cell and a preparation method thereof. Background technique [0002] In recent years, the energy crisis has become more and more serious. Finding new alternative energy sources is an urgent problem for mankind. As an important way to solve energy problems, solar cells have always been a research hotspot. [0003] After more than 60 years of development, solar cells have come in many different types. It mainly includes silicon-based solar cells, thin-film solar cells (such as gallium arsenide, cadmium telluride, and copper indium gallium selenide) and three generations of solar cells represented by dye-sensitized, quantum dot, and bulk heterojunction solar cells. Although monocrystalline / polycrystalline silicon solar cells have been widely used, the production cost is high, and other types of so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/46H01L51/48
CPCH10K85/111H10K85/30H10K30/20Y02E10/549Y02P70/50
Inventor 左传天丁黎明
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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