Evidence of reversible oxidation at CuInSe2 grain boundaries

被引：0

作者：

Colombara, Diego ^{[1
,2
]}

Audinot, Jean-Nicolas ^{[3
]}

Aureau, Damien ^{[4
]}

Babbe, Finn ^{[5
]}

Dales, Phillip J. ^{[5
]}

El Anzeery, Hossam ^{[5
]}

Guthrey, Harvey ^{[6
]}

Nicoara, Nicoleta ^{[1
]}

Sadewasser, Sascha ^{[1
]}

Sharma, Deepanjan ^{[1
]}

Valle, Nathalie ^{[3
]}

Wirtz, Tom ^{[3
]}

Zelenina, Anastasiya ^{[5
]}

机构：

[1] Int Iberian Nanotechnol Lab, Av Mestre Jose Veiga, P-4715330 Braga, Portugal

[2] Univ Genoa, Via Dodecaneso 31, I-16146 Genoa, Italy

[3] Luxembourg Inst Sci & Technol, 41 Rue Brill, L-4422 Belvaux, Luxembourg

[4] Univ Versailles, 45 Ave Etats Unis, F-78000 Versailles, France

[5] Univ Luxembourg, 41 Rue Brill, L-4422 Belvaux, Luxembourg

[6] Natl Renewable Energy Lab, 1617 Cole Blvd, Lakewood, CO 80401 USA

来源：

2019 IEEE 46TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC) | 2019年

关键词：

Solar energy; CIGS; Alkali PDT; oxygenation; CU(IN; GA)SE-2; THIN-FILMS;

D O I：

10.1109/pvsc40753.2019.8981351

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Effects related to alkali metal doping and grain boundaries have puzzled the chalcopyrite photovoltaics community for a long time. This study is the first to report reversible oxidation of grain boundaries in CuInSe2 thin films. The phenomenon is observed in sodium-doped films, but not in undoped ones. Cathodoluminescence imaging, secondary ion mass spectrometry and Kelvin probe force microscopy analyses are performed on CuInSe2 thin films before and after exposure to vacuum. The findings suggest the existence of yet unidentified solid-gas equilibria. Resolving the nature of such reactions will provide new insights into the mechanism of alkali metal doping and passivation in chalcopyrite solar cells.

引用

页码：182 / 184

页数：3

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