Optoelectronic Characterization of Emerging Solar Absorber Cu3AsS4

Patricia Dippo, Darius Kuciauskas, Scott McClary, Siming Li, Xinxing Yin, Yanfa Yan, Jason Baxter, Rakesh Agrawal

Research output: Contribution to conferencePaperpeer-review

6 Scopus Citations


Enargite Cu3AsS4 is a promising absorber for thin-film solar cells but little is known about its optoelectronic properties. Here, we present photoluminescence (PL) spectroscopy, time-resolved terahertz spectroscopy (TRTS), timeresolved photoluminescence (TRPL) spectroscopy, and cyclic voltammetry (CV) measurements of enargite thin films. The results indicate promising defect characteristics with minority carrier lifetimes on the order of ns, and band alignments suggest that buffer layers besides CdS must be developed to achieve high efficiency Cu3AsS4 solar cells.

Original languageAmerican English
Number of pages5
StatePublished - Jun 2019
Event46th IEEE Photovoltaic Specialists Conference, PVSC 2019 - Chicago, United States
Duration: 16 Jun 201921 Jun 2019


Conference46th IEEE Photovoltaic Specialists Conference, PVSC 2019
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

NREL Publication Number

  • NREL/CP-5K00-76322


  • copper compounds
  • nanocrystals
  • photovoltaic cells
  • semiconductor materials
  • thin film devices


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