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Semitransparent perovskite solar cell, assembly and preparation method

A solar cell and perovskite technology, applied in semiconductor/solid-state device manufacturing, electrical components, semiconductor devices, etc., can solve the problems of unfavorable commercialization and market application, low photoelectric conversion efficiency of solar cells, etc., and achieve enhanced charge transport capacity , Inhibit diffusion and improve performance

Pending Publication Date: 2020-12-15
北京宏泰创新科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally, the photoelectric conversion efficiency of semitransparent perovskite solar cells is relatively low, which is not conducive to commercialization and market application

Method used

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  • Semitransparent perovskite solar cell, assembly and preparation method
  • Semitransparent perovskite solar cell, assembly and preparation method
  • Semitransparent perovskite solar cell, assembly and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1 selects the materials of the top charge transport layer in the trans structure as PCBM and TiOx respectively

[0040] 1. Use glass / ITO with a thickness of 2mm as the substrate / cathode, perform UV / ozone treatment on the surface, and then spin-coat PTAA solution on the FTO: PTAA is dissolved in chlorobenzene with a concentration of 5mg / ml, and the spin-coating speed is 5000 rpm. After the spin coating is completed, a hole transport layer with a thickness of about 50 nm is obtained;

[0041] 2. Dissolve lead iodide at a concentration of 600mg / ml in a solvent mixed with DMF / DMSO at a ratio of 4:1. After fully heating and stirring to dissolve, the lead iodide solution is filtered through a polytetrafluoroethylene filter membrane with a diameter of 0.45 microns. Spin coating on the hole transport layer in step S1 at a speed of 2000 rpm, and heat at 80° C. for 1 min to obtain a lead iodide layer with a thickness of about 150 nm;

[0042] 3. Continue to spin-coat...

Embodiment 2

[0045] Example 2 selects the material of the top charge transport layer in the trans structure as TiO x and SnO 2

[0046] In this embodiment, except for step 4, other steps are the same as those in embodiment 1, and reference may be made to the description in embodiment 1.

[0047] 4. Add 200uL of SnO 2 The stock solution was diluted with two volumes of absolute ethanol to obtain SnO 2 solution. Take 60uL of SnO 2 solution, set the spin-coating speed to 4000rpm, spin-coating time to 30s, and anneal at 150°C for 20min after spin-coating; mix 70uL of acetylacetonate isopropyl titanate solution with 900uL of methanol and 50uL of concentrated hydrochloric acid solution, and stir continuously to dissolve , configured as a TiOx solution. Take 60uL of TiOx solution, set the spin-coating speed to 5000rpm, spin-coating time to 30s, and anneal at 150°C for 20min after the spin-coating is completed, to obtain a top charge transport layer with a two-layer structure.

Embodiment 3

[0048] Embodiment 3 selects the materials of the top charge transport layer in the trans structure as PCBM and CdS respectively

[0049] In this embodiment, except for step 4, other steps are the same as those in embodiment 1, and reference may be made to the description in embodiment 1.

[0050] 4. In vacuum evaporation equipment, evaporate a 20nm PCBM layer, and then use a magnetron sputtering equipment to sputter 20nm CdS to obtain a top charge transport layer with a two-layer structure.

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Abstract

The invention discloses a semitransparent perovskite solar cell, a semitransparent perovskite solar module and a preparation method. The semitransparent perovskite solar cell comprises a bottom electrode, a bottom charge transmission layer, a perovskite optical active layer, a top charge transmission layer and a top electrode which are arranged on a substrate, wherein the top charge transmission layer comprises a first charge transmission layer and a second charge transmission layer; if the top charge transport layer is an electron transport layer, the material of the first charge transport layer at least comprises any one of TiO2, SnO2, PCBM, ZnO and CdS, and the material of the second charge transport layer at least comprises any one of TiO2, SnO2, PCBM, ZnO and CdS, and is different from the material of the first charge transport layer. The semitransparent perovskite solar cell is advantaged in that performance of the semitransparent perovskite solar cell is improved.

Description

technical field [0001] The present application relates to the technical field of perovskite solar cells, in particular to a semi-transparent titanium solar cell, a component and a preparation method. Background technique [0002] As the "energy crisis" continues to intensify, solar energy stands out for its advantages of cleanness, no pollution, no geographical restrictions, and low cost, and is favored by countries all over the world. Since the first report of perovskite solar cells in 2009, the energy conversion efficiency has been continuously improved, from the initial 3.8% to 24.2%, exceeding the photoelectric conversion efficiency of commercially used monocrystalline silicon solar cells on the market (about 16% about). Perovskite materials have excellent optoelectronic properties, and perovskite solar cells have high photoelectric conversion efficiency and low-cost preparation characteristics, which provide a basic guarantee for the mass production and commercializati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/44H01L51/42H01L51/48
CPCH10K71/00H10K30/88H10K30/30Y02E10/549
Inventor 周少龙唐泽国
Owner 北京宏泰创新科技有限公司
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