Organic-inorganic hybrid solar cell and preparation method thereof

A solar cell and inorganic technology, applied in the field of solar cells, can solve problems such as difficult large-scale application, low photoelectric conversion efficiency, and high cost, and achieve the effects of easy industrial production, improved photoelectric conversion efficiency, and improved contact barrier

Active Publication Date: 2018-09-14
苏州宝澜环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The temperature in the preparation process of traditional silicon solar cells is high, and the purity of silicon materials is high, which in turn leads to high costs, making traditional silicon solar cells difficult to apply on a large scale
Organic-inorganic hybrid solar cells have attracted widespread attention due to their simple preparation process and low temperature during the preparation process. However, the existing organic-inorganic hybrid solar cells have low photoelectric conversion efficiency.

Method used

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  • Organic-inorganic hybrid solar cell and preparation method thereof

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[0024] A method for preparing an organic-inorganic hybrid solar cell proposed in a specific embodiment of the present invention comprises the following steps:

[0025] (1) N-type silicon wafers are subjected to texturing treatment, and then soaked in HF solution to remove the natural silicon oxide layer on the surface of the silicon wafers;

[0026] (2) Passivate the N-type silicon chip: Spin-coat a mixed solution containing niobium ethoxide and hafnium ethoxide on the upper surface of the N-type silicon chip, and dry it, then apply The surface is spin-coated with the mixed solution containing niobium ethoxide and hafnium ethoxide, and then annealed for the first time to form a passivation film on the upper and lower surfaces of the silicon wafer;

[0027] (3) Preparation of strontium chloride interface modification film: the upper surface of the N-type silicon wafer obtained in step (2) is spin-coated with an aqueous solution containing strontium chloride, wherein the concent...

Embodiment 1

[0042] A method for preparing an organic-inorganic hybrid solar cell, comprising the following steps: (1) N-type silicon chip is subjected to texturing treatment, then soaked in HF solution to remove the natural silicon oxide layer on the surface of the silicon chip; (2) The N-type silicon chip is subjected to passivation treatment: the upper surface of the N-type silicon chip is spin-coated with a mixed solution containing niobium ethoxide and hafnium ethoxide, and dried, and then the lower surface of the silicon chip is spin-coated with the above-mentioned A mixed solution containing niobium ethoxide and hafnium ethoxide is then annealed for the first time to form a passivation film on the upper and lower surfaces of the silicon wafer; (3) preparation of strontium chloride interface modification film: obtained in step (2) The upper surface of the N-type silicon wafer is spin-coated with an aqueous solution containing strontium chloride, wherein the concentration of strontium ...

Embodiment 2

[0046] A method for preparing an organic-inorganic hybrid solar cell, comprising the following steps: (1) N-type silicon chip is subjected to texturing treatment, then soaked in HF solution to remove the natural silicon oxide layer on the surface of the silicon chip; (2) The N-type silicon chip is subjected to passivation treatment: the upper surface of the N-type silicon chip is spin-coated with a mixed solution containing niobium ethoxide and hafnium ethoxide, and dried, and then the lower surface of the silicon chip is spin-coated with the above-mentioned A mixed solution containing niobium ethoxide and hafnium ethoxide is then annealed for the first time to form a passivation film on the upper and lower surfaces of the silicon wafer; (3) preparation of strontium chloride interface modification film: obtained in step (2) The upper surface of the N-type silicon wafer is spin-coated with an aqueous solution containing strontium chloride, wherein the concentration of strontium ...

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Abstract

The invention relates to an organic-inorganic hybrid solar cell and a preparation method thereof. The method comprises steps as follows: texturing treatment of an N type silicon wafer, passivating treatment of the N type silicon wafer, preparation of a strontium chloride interface modified film, preparation of a P3HT composite layer, preparation of a PEDOT:PSS composite layer and a Bphen / lithium fluoride composite interface layer, preparation of a front grid electrode and preparation of a rear electrode. The organic-inorganic hybrid solar cell has excellent photoelectric conversion efficiency.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to an organic-inorganic hybrid solar cell and a preparation method thereof. Background technique [0002] Silicon solar cells mainly include monocrystalline silicon solar cells, polycrystalline silicon solar cells, silicon-based thin-film solar cells and organic-inorganic hybrid solar cells. The temperature in the preparation process of traditional silicon solar cells is high, and the purity of silicon materials is high, which in turn leads to high costs, making it difficult for traditional silicon solar cells to be applied on a large scale. Organic-inorganic hybrid solar cells have attracted widespread attention due to their simple preparation process and low temperature during the preparation process. However, the photoelectric conversion efficiency of existing organic-inorganic hybrid solar cells is low. How to improve the structure of organic-inorganic hybrid solar cells to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/12H10K71/40H10K30/10Y02E10/549Y02P70/50
Inventor 张军
Owner 苏州宝澜环保科技有限公司
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