Nanosecond Carrier Lifetimes in Solution-Processed Enargite (Cu3AsS4) Thin Films

Scott McClary, Mohammad Taheri, Daria Blach, Apurva Pradhan, Siming Li, Libai Huang, Jason Baxter & Rakesh Agrawal
Enargite (ENG) Cu3AsS4 is a promising material for photovoltaic applications due to its constituent earth abundant elements of differing ionic radii, ideal predicted optoelectronic properties, and demonstrated use in a working thin-film solar cell. However, little is known about ENG’s defect properties; such knowledge is necessary to assess its potential for future use in high-efficiency devices. One indicator of a material’s quality is its photogenerated carrier lifetime, which can be related to its bulk defect...
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