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Atomistic consideration of earth-abundant chalcogenide materials for photovoltaics: Kesterite and beyond

Published online by Cambridge University Press:  12 October 2018

Jekyung Kim ,
Liudmila Larina ,
Sung-Yoon Chung Open the ORCID record for Sung-Yoon Chung [Opens in a new window] ,
Donghyeop Shin  and
Byungha Shin
Jekyung Kim
Affiliation:
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, South Korea
Liudmila Larina
Affiliation:
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, South Korea
Sung-Yoon Chung
Affiliation:
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, South Korea
Donghyeop Shin*
Affiliation:
Photovoltaic Laboratory, Korea Institute of Energy Research, Daejeon 34129, South Korea
Byungha Shin*
Affiliation:
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, South Korea
*
a)Address all correspondence to these authors. e-mail: [email protected]
b)e-mail: [email protected]
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Abstract

Despite the potential as a promising alternative to CdTe and Cu(In,Ga)Se2, the kesterite compound Cu2ZnSn(S,Se)4 (CZTSSe) presents a critical challenge mainly from its high open-circuit voltage (Voc) deficit. Indeed, the Voc of the record CZTSSe solar cell to date has accounted for only 61% of that calculated by the Shockley–Queisser limit, whose origin can be ascribed to nonradiative recombination from a high density of defects and secondary phases. Therefore, an atomistic understanding and characterization of CZTSSe is highly essential to overcoming the current shortcomings in kesterite. This review discusses the advanced characterization techniques for studying the intrinsic properties of kesterite at a nanometer scale. Moreover, a cation substitution with an ionic mismatch around constituents is recognized as an effective route to address the fundamental limit (i.e., the cationic disorder) in CZTSSe. Here, we review recent studies on a novel chalcogenide Cu2BaSn(S,Se)4 that substitutes Zn with Ba and results in less cationic disordering.

Keywords

photovoltaicthin filmkesteritedefectsnanoscale characterization
Type
Invited Feature Paper - REVIEW
Information
Journal of Materials Research , Volume 33 , Issue 23 , 14 December 2018 , pp. 3986 - 3998
Copyright
Copyright © Materials Research Society 2018 

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Footnotes

c)

This author was an editor of this journal during the review and decision stage. For the JMR policy on review and publication of manuscripts authored by editors, please refer to http://www.mrs.org/editor-manuscripts/.

This paper has been selected as an Invited Feature Paper.

References

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