Large Efficiency Improvement in Cu2ZnSnSe4 Solar Cells by Introducing a Superficial Ge Nanolayer

By S. Giraldo, M. Neuschitzer, T. Thersleff, S. López‐Mariño, Y. Sánchez, Haibing Xie, M. Colina, M. Placidi, P. Pistor, V. Izquierdo‐Roca and 3 more. 2015

196 citations recorded by the source corpus.

A large improvement of Cu2ZnSnSe4 solar cell efficiency is presented based on the introduction of a Ge superficial nanolayer. This improvement is explained by three complementary effects: the formation of a liquid Ge-related phase, the possible reduction of Sn multicharge states, and the formation of GeOx nanoinclusions, which lead to an impressive solar cell (VOC) increase.

Subfields: Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/1a4a87c86023cbd29e9fe248761728504dbbf74f

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In Electrical and Electronic Engineering

1. X. Hao
2. Martin A. Green
3. Fang-yang Liu
4. H. Cui
5. Yu Feng
6. G. Conibeer
7. Xiaolei Liu
8. David B. Mitzi

In Materials Chemistry

1. Martin A. Green
2. X. Hao
3. Fang-yang Liu
4. H. Cui
5. Yu Feng
6. G. Conibeer
7. Xiaolei Liu
8. David B. Mitzi

Citations in the corpus

• The current status and future prospects of kesterite solar cells: a brief review (2016, background): “The preliminary X-ray photoemission spectroscopy (XPS) results indicate that the presence of Ge inhibits the formation of the oxidation state Sn of Sn [96], which occupies the Zn site [95].”