Visible light-assisted instability of kesterite Cu2ZnSnS4 : What are the implications?

被引：9

作者：

Kois, Julia ^{[1
]}

Polivtseva, Svetlana ^{[2
]}

Mamedov, Damir ^{[3
,4
]}

Samieipour, Ali ^{[1
]}

Karazhanov, Smagul Zh ^{[3
,4
]}

机构：

[1] LLC Auramet, Kalliomaentie 1B, Espoo 02920, Finland

[2] TalTech, Dept Mat & Environm Technol, Sch Engn, Ehitajate Tee 5, EE-19086 Tallinn, Estonia

[3] MEPhI, Dept Mat Sci, Fac Phys & Technol, Moscow, Russia

[4] Inst Energy Technol, Dept Solar Energy, NO-2027 Kjeller, Norway

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2020年 / 208卷

关键词：

CZTS; Electrochemical; Photoactive ternary compounds; Aqueous instability; Photocorrosion; Ab initio calculations; TOTAL-ENERGY CALCULATIONS; SOLAR; SEMICONDUCTORS; DISSOLUTION; EFFICIENCY; PRECURSORS; FILMS;

D O I：

10.1016/j.solmat.2019.110384

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：

The development of efficient photovoltaic devices utilizing durable and cost-effective materials such as CZTS and similar ones represents a big challenge. Here, the comparison of thermodynamic calculations and electrochemical experiments reveals detrimental degradation of CZTS regardless of pH values and potentials applied. Cathodic polarization yields to the full decomposition of CZTS, while anodic polarization stabilizes partly CZTS by passivation of its surface with less-active phases. The presence of water, in general, provokes the decomposition of CZTS to various undesired phases which most likely affect the device parameters. The possible mechanism for the degradation of CZTS is proposed considering its electronic structure. Certain similarities on unfavorable processes occurring with analogous materials are expected.

引用

页数：10

共 40 条

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[Anonymous], ICCEP

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