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Translucent perovskite solar cell without auxiliary layer and preparation method thereof

A solar cell and perovskite technology, applied in semiconductor/solid-state device manufacturing, circuits, photovoltaic power generation, etc., can solve the problems of difficult preparation of auxiliary layers, low repeatability, poor stability, etc., and achieve photoelectric conversion efficiency improvement and stability. Good, improve the effect of device stability

Inactive Publication Date: 2019-09-10
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention discloses a translucent perovskite solar cell without an auxiliary layer and a preparation method thereof, which solves the problems of difficult preparation of the auxiliary layer, low repeatability, and poor stability

Method used

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  • Translucent perovskite solar cell without auxiliary layer and preparation method thereof
  • Translucent perovskite solar cell without auxiliary layer and preparation method thereof
  • Translucent perovskite solar cell without auxiliary layer and preparation method thereof

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Embodiment 1

[0037] Such asfigure 1 As shown, a translucent perovskite solar cell without an auxiliary layer includes a transparent conductive substrate, an electron transport layer, a perovskite active layer, a hole transport layer and a transparent electrode layer arranged in sequence from bottom to top.

[0038] In this embodiment, the transparent conductive substrate is glass covered with an ITO film, and the material of the electron transport layer is SnO 2 , the perovskite active layer is the perovskite material CH 3 NH 3 PB 3 , the hole transport layer is CuSCN, and the transparent electrode layer is ITO. The specific preparation method is as follows:

[0039] Step 1, cleaning of ITO glass: select the ITO glass with a square resistance of 10Ω, a light transmittance of 90%, and a thickness of 1.1 mm, and ultrasonically clean the ITO conductive glass in deionized water, detergent, acetone, and ethanol solutions for 5 minutes. , and then dry the ITO glass with nitrogen, and treat i...

Embodiment 2

[0046] In this embodiment, the transparent conductive substrate is glass covered with an FTO film, and the material of the electron transport layer is SnO 2 , the perovskite active layer is the perovskite material CH 3 NH 3 PB 3 , the hole transport layer is CuI, and the transparent electrode layer is ITO. The specific preparation method is as follows:

[0047] Step 1, cleaning of FTO glass: select FTO glass with a square resistance of 10Ω, a light transmittance of 90%, and a thickness of 1.1 mm, and ultrasonically clean the FTO conductive glass in deionized water, detergent, acetone, and ethanol solutions for 5 minutes. , and then dry the FTO glass with nitrogen, and treat it with an ultraviolet ozone cleaner for 20 minutes.

[0048] Step 2, electron transport layer SnO 2 Preparation: 20mg of SnCl 2 2H 2 O was dissolved in 1 mL of ethanol solution, and after the dissolution was complete, the solution was spin-coated on the FTO substrate at a rotation speed of 3000 rpm ...

Embodiment 3

[0054] In this embodiment, the transparent conductive substrate is glass covered with an ITO film, the material of the electron transport layer is PCBM, and the perovskite active layer is perovskite material CH(NH 2 ) 2 PB 3 , the hole transport layer is CuSCN, and the transparent electrode layer is ITO. The specific preparation method is as follows:

[0055] Step 1, cleaning of ITO glass: select the ITO glass with a square resistance of 10Ω, a light transmittance of 90%, and a thickness of 1.1 mm, and ultrasonically clean the ITO conductive glass in deionized water, detergent, acetone, and ethanol solutions for 5 minutes. , and then dry the ITO glass with nitrogen, and treat it with an ultraviolet ozone cleaner for 20 minutes.

[0056] Step 2, preparation of electron transport layer PCBM: 20 mg of PCBM was dissolved in 1 mL of chlorobenzene solution, and after the dissolution was complete, the solution was spin-coated on the ITO substrate at a rotation speed of 4000 rpm an...

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Abstract

The invention discloses a translucent perovskite solar cell without an auxiliary layer and a preparation method thereof. The translucent perovskite solar cell without an auxiliary layer comprises a transparent conductive substrate, an electron transport layer, a perovskite active layer, a hole transport layer and a transparent electrode layer which are arranged in turn from bottom to top. The transparent electrode layer is made of ITO, AZO or IZO, and is deposited on the hole transport layer by magnetron sputtering or electron beam evaporation. A translucent perovskite solar cell without the need for an auxiliary layer is prepared by taking an inorganic material compatible with the magnetron sputtering process as the hole transport layer. The problem that an auxiliary layer is difficult toprepare and has low repeatability and poor stability is solved. The process is simple, and the cost is low. At the same time, the inorganic material used in the invention can also improve the stability of devices and greatly reduce the cost of the hole transport layer, and is conducive to the commercial application of the perovskite laminated solar cell.

Description

technical field [0001] The invention belongs to the field of perovskite photoelectricity, in particular to a semi-transparent perovskite solar cell without an auxiliary layer and a preparation method thereof. Background technique [0002] In recent years, organic-inorganic hybrid perovskite solar cells have received a lot of attention in the field of tandem solar cells due to their high light absorption coefficient, small sub-gap absorption, steep absorption edge, and adjustable band gap width. The characteristics of low cost and low cost are also conducive to industrial applications. There have been many reports including silicon / perovskite, CIGS / perovskite, perovskite / perovskite tandem solar cells. However, as an important component of tandem solar cells, there are still many challenges in the preparation of semitransparent perovskite solar cells. [0003] Due to the need to ensure light transmission, the top electrode of semi-transparent perovskite solar cells usually us...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/48
CPCH10K30/152H10K30/151H10K30/15Y02E10/549
Inventor 余学功李格杨德仁
Owner ZHEJIANG UNIV
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