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Photovoltaic cell and preparation method thereof

A photovoltaic cell and metal electrode technology, which is applied in the field of solar cells, can solve problems such as battery performance degradation, and achieve the effects of improving stability, avoiding humid air, and preventing damage

Inactive Publication Date: 2020-05-12
张军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In existing perovskite solar cells, humid air easily enters the interior of perovskite solar cells, which leads to a rapid decline in battery performance

Method used

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  • Photovoltaic cell and preparation method thereof
  • Photovoltaic cell and preparation method thereof

Examples

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preparation example Construction

[0030] A method for preparing a photovoltaic cell, comprising the following steps: 1) providing a transparent substrate, forming a groove on the upper surface of the transparent substrate, the groove has a bottom surface and four sides, and the first, The angle between the third side and the bottom surface is 120°-150°, and the angle between the second and fourth side and the bottom surface is 90°; 2) then forming on the upper surface of the transparent substrate A transparent conductive layer completely covering the bottom surface of the groove, and a plurality of metal strips are formed on the first and third side surfaces, each metal strip is electrically connected to the transparent conductive layer and extends through the The first side or the third side to reach the upper surface of the transparent substrate, there is no transparent conductive material and metal material on the second and fourth sides; 3) using a mask on the first side and a first insulating medium layer...

Embodiment 1

[0036] A method for preparing a photovoltaic cell, comprising the following steps: 1) providing a transparent substrate, forming a groove on the upper surface of the transparent substrate, the groove has a bottom surface and four sides, and the first, The angle between the third side and the bottom surface is 150°, and the angle between the second and fourth sides and the bottom surface is 90°; 2) Then, a complete covering is formed on the upper surface of the transparent substrate a transparent conductive layer on the bottom surface of the groove, and a plurality of metal strips are formed on the first and third side surfaces, each metal strip is electrically connected to the transparent conductive layer and extends through the first side or the third side to reach the upper surface of the transparent substrate, there is no transparent conductive material and metal material on the second and fourth sides; 3) use a mask to cover the first side and the A first insulating medium...

Embodiment 2

[0042] A method for preparing a photovoltaic cell, comprising the following steps: 1) providing a transparent substrate, forming a groove on the upper surface of the transparent substrate, the groove has a bottom surface and four sides, and the first, The angle between the third side and the bottom surface is 120°, and the angle between the second and fourth sides and the bottom surface is 90°; 2) Then, a complete cover is formed on the upper surface of the transparent substrate a transparent conductive layer on the bottom surface of the groove, and a plurality of metal strips are formed on the first and third side surfaces, each metal strip is electrically connected to the transparent conductive layer and extends through the first side or the third side to reach the upper surface of the transparent substrate, there is no transparent conductive material and metal material on the second and fourth sides; 3) use a mask to cover the first side and the A first insulating medium la...

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Abstract

The invention relates to a photovoltaic cell and a preparation method thereof. The method comprises the following steps: providing a transparent substrate, forming a groove in the upper surface of thetransparent substrate, forming a transparent conductive layer on the bottom surface of the groove, and forming a plurality of metal strips on the first side surface and the third side surface, wherein each metal strip is electrically connected with the transparent conductive layer; forming a first insulating dielectric layer on the first side surface and the third side surface; preparing a titanium dioxide compact layer, a titanium dioxide mesoporous layer, a perovskite functional layer, a hole transport layer, a metal thin layer and a metal electrode on the bottom surface of the groove, forming a second insulating dielectric layer on the upper surface of the transparent substrate, and forming an antireflection layer on the lower surface of the transparent substrate; etching the second insulating dielectric layer to expose a part of the metal strip and the metal electrode, and leading out the electrode by using a metal wire; and covering the upper surface of the transparent substratewith a packaging adhesive layer.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a photovoltaic cell and a preparation method thereof. Background technique [0002] As a new type of solar cell, perovskite solar cells use perovskite-type organic metal halide semiconductors as light-absorbing materials. Perovskite solar cells generally consist of five parts: a transparent conductive substrate, a dense layer of titanium dioxide, a mesoporous layer of titanium dioxide, a perovskite absorbing layer, a hole transport layer, and a metal electrode. Under light conditions, the perovskite absorbing layer absorbs light to generate electron-hole pairs, in which the holes are transported from the perovskite absorbing layer to the hole transport layer and then collected by the metal electrode, and the electrons are transported from the perovskite absorbing layer to the The dense layer of titanium dioxide is then collected by the transparent conductive substrate. In t...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/44H01L51/48
CPCH10K30/151H10K30/87H10K30/81H10K30/88Y02E10/549
Inventor 张军
Owner 张军
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