Evaluation of photovoltaic materials within the Cu-Sn-S family

Pawel Zawadzki, Lauryn L. Baranowski, Haowei Peng, Eric S. Toberer, David S. Ginley, W. Tumas, Andriy Zakutayev, Stephan Lany

Research output: Contribution to journalArticlepeer-review

95 Citations (Scopus)


Next-generation thin film solar cell technologies require earth abundant photovoltaic absorber materials. Here we demonstrate an alternative approach to design of such materials, evaluating candidates grouped by constituent elements rather than underlying crystal structures. As an example, we evaluate thermodynamic stability, electrical transport, electronic structure, optical and defect properties of Cu-Sn-S candidates using complementary theory and experiment. We conclude that Cu2SnS3 avoids many issues associated with the properties of Cu4SnS4, Cu 4Sn7S16, and other Cu-Sn-S materials. This example demonstrates how this element-specific approach quickly identifies potential problems with less promising candidates and helps focusing on the more promising solar cell absorbers.

Original languageEnglish
Article number253902
JournalApplied Physics Letters
Issue number25
Publication statusPublished - Dec 16 2013

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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