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Perovskite solar cell based on zn1‑xcdxs solid solution thin film and its preparation method

A solar cell, zn1-xcdxs technology, applied in semiconductor/solid-state device manufacturing, circuits, photovoltaic power generation, etc., can solve the problems of high cost of charge transport layer, complex preparation process of perovskite solar cells, etc., and achieve photoelectric conversion efficiency Excellent, high-efficiency photovoltaic effect, and low temperature in the preparation process

Active Publication Date: 2018-03-20
CHENGDU SCI & TECH DEV CENT CHINA ACAD OF ENG PHYSICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of complex preparation process of perovskite solar cells and high cost of charge transport layer in the background technology, the present invention provides a Zn-based 1-x CD x Perovskite solar cell of S solid-solution thin film and preparation method thereof

Method used

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  • Perovskite solar cell based on zn1‑xcdxs solid solution thin film and its preparation method
  • Perovskite solar cell based on zn1‑xcdxs solid solution thin film and its preparation method
  • Perovskite solar cell based on zn1‑xcdxs solid solution thin film and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0058] Based on Zn 1-x Cd x Perovskite solar cells with S solid-solution films, the structure of which is as follows figure 1 As shown, the substrate (1) is glass, the transparent conductive layer (2) is an indium tin oxide film, and the electron transport layer (3) is Zn 1-x Cd x S solid solution thin film, perovskite layer (4) is CH 3 NH 3 PB 3 , the hole transport layer (5) is an organic material spiro-OMeTAD, and the metal electrode (6) is gold.

[0059] Preparation:

[0060] a) The glass substrate covered with indium tin oxide was ultrasonically washed with detergent, acetone, and ethanol for 30 minutes, dried with a nitrogen gun, and treated with ultraviolet-ozone for 5 minutes.

[0061] b) Zn 1-x Cd x Preparation of S electron transport layer:

[0062] Prepared by chemical water bath deposition method. Prepare chemical deposition solution at normal temperature, the solution contains 0.005mol / L cadmium chloride, 0.02mol / L zinc chloride, 0.025mol / L thiourea, 0....

Embodiment 2

[0074] Based on Zn 1-x Cd x The perovskite solar cell of S solid-solution film has the following structure: the substrate (1) is polyethylene terephthalate (PET for short), the transparent conductive layer (2) is an indium tin oxide film, and (3) is Zn 1-x Cd x S electron transport layer, perovskite layer (4) is CH 3 NH 3 PB 3 , the hole transport layer (5) is an organic material spiro-OMeTAD, and the metal electrode (6) is gold.

[0075] Preparation:

[0076] a) Wash the PET substrate covered with indium tin oxide with deionized water and ethanol for 5 minutes, and dry it with a nitrogen gun;

[0077] b) Zn 1-x Cd x Preparation of S electron transport layer:

[0078] Prepared by chemical water bath deposition method. Prepare chemical deposition solution at normal temperature, the solution contains 0.005mol / L cadmium chloride, 0.01mol / L zinc chloride, 0.025mol / L thiourea, 0.1mol / L sodium tartrate, 0.1mol / L Sodium citrate. Put the treated sample in a) into the depos...

Embodiment 3

[0083] Based on Zn 1-x Cd x The perovskite solar cell of S solid-solution thin film, the structure is: the substrate (1) is glass, the transparent conductive layer (2) is indium tin oxide thin film, (3) is Zn 1-x Cd x S electron transport layer, perovskite layer (4) is CH 3 NH 3 PB 3 , the hole transport layer (5) is an organic material spiro-OMeTAD, and the metal electrode (6) is gold.

[0084] Preparation:

[0085] b) Zn 1-x Cd x Preparation of S electron transport layer:

[0086] Prepared by chemical water bath deposition method. Prepare chemical deposition solution at normal temperature, the solution contains 0.005mol / L cadmium chloride, 0.01mol / L zinc chloride, 0.025mol / L thiourea, 0.1mol / L sodium tartrate, 0.1mol / L Sodium citrate. Put the treated sample in a) into the deposition solution, and heat the solution to 75° C. in a water bath, and deposit for 60 minutes.

[0087] The preparation method of other steps is the same as that of Example 1.

[0088] Carry...

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Abstract

The invention discloses a perovskite solar cell based on a Zn1‑xCdxS solid solution thin film, the structure of which includes a base layer (1), and sequentially arranged on the base layer (1): a transparent conductive layer (2), an electron transport layer Zn1‑xCdxS layer (3), perovskite layer (4), hole transport layer (5) and metal electrode layer (6). The electron transport layer Zn1-xCdxS described in the present invention does not require a high-temperature preparation process, and can maintain energy band matching with the perovskite absorbing layer through composition control. The electron transport layer can be obtained by reactive radio frequency co-sputtering or chemical water bath deposition, etc., and has a simple preparation process, less energy consumption, and is easy to be popularized in a large area.

Description

technical field [0001] The invention belongs to the technical field of green energy, and relates to a solar cell based on an organic-inorganic hybrid perovskite material, in particular to a Zn 1-x Cd x Perovskite solar cell with S solid-solution thin film and its preparation method. Background technique [0002] Solar photovoltaic technology is an important part of green energy. Among the current types of solar cells, perovskite solar cells have attracted many scientific researches due to their high absorbency, high carrier mobility, low cost, and simple process. The concern of personnel, and is considered to be a new type of photovoltaic cell with great development prospects. At present, the conversion efficiency of perovskite photovoltaic cells has reached more than 20%, which has reached the same level as commercial silicon cells. [0003] At present, perovskite solar cells mainly adopt two structures, one is based on TiO 2 The other is a planar structure based on org...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/48
CPCH10K71/166H10K30/10H10K2102/00Y02E10/549
Inventor 刘江廖成梅军叶勤燕何绪林
Owner CHENGDU SCI & TECH DEV CENT CHINA ACAD OF ENG PHYSICS
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