based on sb 2 the s 3 Stacked thin film solar cell with top cell and preparation method thereof

A technology of solar cells and top cells, applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problems of insufficient utilization of solar energy spectrum, complex process and high cost, and achieve the improvement of photoelectric conversion efficiency, high spectral absorption coefficient, and improved efficiency. Effect
CN108281501BActive Publication Date: 2019-09-13HUAZHONG UNIV OF SCI & TECH +1
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2019-09-13

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a laminated thin-film solar cell based on a Sb2S3 top battery and a preparation method of the laminated thin-film solar cell, and belongs to the field of thin-film solar cells.The laminated thin-film solar cell comprises a transparent conducting layer, the top battery, a middle composite layer, a bottom battery and a metal electrodes from top to bottom, wherein the metal electrodes are arranged at the lower ends of the transparent conducting layer and the bottom battery, the top battery is an Sb2S3 thin-film battery, and the bottom battery is a PbS quantum dot thin-film battery. The Sb2S3 thin-film battery and the PbS quantum dot thin-film battery are laminated to form the laminated battery, the forbidden bandwidth of the Sb2S3 thin-film battery is 1.73eV, and theforbidden bandwidth of the PbS quantum dot thin-film battery can be adjusted within the range of 1.03eV-1.45eV. The forbidden bandwidth of the prepared laminated battery is complementary, a spectrum absorption range can be widened, photoelectric conversion efficiency is greatly improved, and cost is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of thin film solar cells, more specifically, relates to a Sb-based 2 S 3 A tandem thin film solar cell with a top cell and a method for preparing the same. Background technique

[0002] With the rapid development of human society, the demand for energy will become larger and larger. The reserves of fossil energy are limited and the pollution is serious. The development of new energy has become particularly urgent. As a clean and renewable energy source, solar energy is expected to improve energy problems. Solar cells development is particularly important.

[0003] The energy distribution range of the solar spectrum is wide, and the absorption spectrum range of a single material is limited. Only light with energy higher than the band gap will be absorbed, and photons with lower energy cannot be absorbed, and the entire solar spectrum cannot be fully utilized. Therefore, The utilization efficiency of the solar spectr...

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