CDTE BASED THIN FILM SOLAR CELL DEVICE WITH DIFFUSION BARRIER LAYER AND METHOD FOR MANUFACTURING THEREOF

WIPO Patent Application WO/2024/077583

A1

A CdTe based thin film solar cell device (10) and a method for manufacturing it in superstrate configuration are provided. The CdTe based thin film solar cell device (10) comprises a CdTe based absorber layer (13) comprising a first partial layer (131) being a selenium-rich CdTe layer, a second partial layer (133) having a smaller selenium content than the first partial layer (131), and a diffusion barrier layer (132) between the first partial layer (131) and the second partial layer (133). The diffusion barrier layer (132) is a layer having a band gap larger than that of the first partial layer (131) and a crystal structure differing from the crystal structure of the first partial layer (131). The method for manufacturing comprises a step of forming the CdTe based absorber layer (131), wherein this step comprises depositing a first layer, a second layer and a third layer and performing a thermal treatment after depositing all of these layers. As a result of the thermal treatment, the first partial layer (131) is formed from the first layer, the diffusion barrier layer (132) is formed from the second layer and the second partial layer (133) is formed from the third layer.

PENG SHOU (CN)
MA LIYUN (CN)
YIN XINJIAN (CN)
FU GANHUA (CN)
ARNDT ROBERT (DE)
SWOBODA MARKO (DE)

PCT/CN2022/125288

April 18, 2024

October 14, 2022

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CHINA TRIUMPH INT ENG CO LTD (CN)
CTF SOLAR GMBH (DE)

H01L31/073; H01L31/18

US20140326315A1	2014-11-06
US20180204970A1	2018-07-19
CN111341859A	2020-06-26
CN112490315A	2021-03-12

J.Z.M.C. PATENT AND TRADEMARK LAW OFFICE (GENERAL PARTNERSHIP) (CN)

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