Unlock instant, AI-driven research and patent intelligence for your innovation.

Design of efficient perovskite solar cell based on light trapping structure glass

A technology of solar cells and light trapping structure, applied in the field of solar cells, can solve problems such as no discussion, limitation, etc.

Inactive Publication Date: 2021-03-19
GUILIN UNIV OF ELECTRONIC TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned light-trapping technologies have all improved the conversion efficiency of perovskite solar cells, but there is still no prior technology that directly deposits perovskite solar cells on the surface of the light-trapping structure to make perovskite solar cells also light-trapping structured , which limits the possibility of light-trapping technology to improve the conversion efficiency of perovskite solar cells

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Design of efficient perovskite solar cell based on light trapping structure glass
  • Design of efficient perovskite solar cell based on light trapping structure glass
  • Design of efficient perovskite solar cell based on light trapping structure glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below in conjunction with specific examples.

[0022] figure 2 An embodiment of a solar cell with a light-trapping structure with an aspect ratio of about 0.5 and a uniform thickness of perovskite is provided. The specific implementation steps are as follows: prepare a hemispherical pit light trapping structure with a radius of about 1 μm and an aspect ratio of about 0.5 on solar-grade glass by photolithography, development, and etching; Ag with a thickness of 100 nm is sputtered on the light-trapping structure surface of the optical structure glass 1 as the back electrode layer 2 of the battery; Nb with a thickness of 100 nm is deposited on the back electrode layer 2 of the battery by electron beam evaporation. 2 o 5 As the back electrode electron transport layer 3; using a spin coating process, the back electrode electron transport layer 3 is spin-coated with a thickness of 100nm CsPbI 2 Br is used as the perovskite ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a design of an efficient perovskite solar cell based on light trapping structure glass. The perovskite solar cell is characterized in that the perovskite solar cell is composedof a cell back electrode layer 2, a back electrode electron transport layer 3, a perovskite layer 4, a front electrode hole transport layer 5 and a front electrode layer 6 which are directly depositedon a light trapping structure surface of high-efficiency light trapping structure glass 1. The perovskite solar cell is directly deposited on the light trapping face of the light trapping structure glass, light reflection can be effectively reduced compared with a flat plate structure, the light energy absorption and photoelectric conversion capacity of the cell for incident light is improved, and the efficiency of the perovskite solar cell can be improved by 10-15% through the design.

Description

[0001] (1) Technical field [0002] The invention relates to the design of a high-efficiency perovskite solar cell based on a light-trapping structural glass, belongs to the field of solar cells, and specifically relates to micro-nano processing and optoelectronic devices. [0003] (2) Background technology [0004] At present, the conversion efficiency of perovskite solar cells has exceeded 25%, becoming one of the most competitive solar cells in the market today, which is mainly due to the high absorption rate and adjustable band gap of the perovskite material itself. Advantages, it is predicted that the conversion efficiency of perovskite solar cells can be as high as 50%. However, most of the perovskite solar cells currently have a flat structure, so when light hits the surface of the cell, a large part of the incident light will be reflected and cause loss. In addition, the thickness of the perovskite light-absorbing layer of the flat plate structure is generally relative...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01L31/0236H01L31/042H01L31/054H01L31/18B82Y40/00
CPCH01L31/02366H01L31/042H01L31/054H01L31/18B82Y40/00Y02E10/52Y02P70/50
Inventor 陈乐罗炜方博闻孙嘉伟朱保华李洪阳
Owner GUILIN UNIV OF ELECTRONIC TECH