Silver-Doped Cu2(Sn,Ge)S3 Solar Cells

被引：3

作者：

Ito, Tomohiro ^{[1
]}

Nishimura, Takahito ^{[2
]}

Chantana, Jakapan ^{[1
,3
]}

Mavlonov, Abdurashid ^{[4
]}

Kawano, Yu

Negami, Takayuki ^{[3
]}

Minemoto, Takashi ^{[1
]}

机构：

[1] Ritsumeikan Univ, Dept Elect & Elect Engn, 1-1-1 Nojihigashi, Kusatsu, Shiga 5258577, Japan

[2] Tokyo Inst Technol, Dept Elect & Elect Engn, 2-12-1 Ookayama,Meguro Ku, Tokyo 1528550, Japan

[3] Ritsumeikan Univ, Res Org Sci & Technol, 1-1-1 Nojihigashi, Kusatsu, Shiga 5258577, Japan

[4] Ritsumeikan Univ, Ritsumeikan Global Innovat Res Org, 1-1-1 Nojihigashi, Kusatsu, Shiga 5258577, Japan

来源：

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2023年 / 17卷 / 09期

关键词：

crystal growth; CTGS; Cu-2(Sn; Ge)S-3; silver; solar cells; EFFICIENCY; SURFACE; AG; FABRICATION; CU(IN; FILMS; LAYER;

D O I：

10.1002/pssr.202300050

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Herein, the usefulness of silver (Ag)-doping into Cu-2(Sn,Ge)S-3 (CTGS) solar cells is demonstrated. From an observation via a field emission scanning electron microscope, grain growth promotion of the CTGS thin films by Ag-doping is revealed. It is found that undesirable defects are suppressed by an adequate Ag-dopant amount, resulting in reduced nonradiative recombination in photoluminescence spectra for the Ag-doped CTGS films. For the CTGS solar cell devices, Ag-doping into the CTGS absorbers mainly improves the short-circuit current density and open-circuit voltage. Finally, 3.2%-efficient Ag-doped CTGS solar cell is obtained at [Ag]/([Ag] + [Cu]) ratio of 0.05. It is believed that these findings will help to realize the highest efficiency for the CTGS solar cells.

引用

页数：6

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