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- Title
Cu<sub>2</sub>ZnSnSe<sub>4</sub> Thin-Film Solar Cells by Thermal Co-evaporation with 11.6% Efficiency and Improved Minority Carrier Diffusion Length.
- Authors
Lee, Yun Seog; Gershon, Talia; Gunawan, Oki; Todorov, Teodor K.; Gokmen, Tayfun; Virgus, Yudistira; Guha, Supratik
- Abstract
11.6%‐efficiency Cu2ZnSnSe4 (CZTSe) thin‐film solar cells are fabricated via a thermal co‐evaporation method. The CZTSe thin film with improved microstructure exhibits a minority carrier diffusion length over 2 μm, resulting in efficient photogenerated carrier collection in the device. A comparative study of photoluminescence in pure selenide and pure sulfide devices shows reduced band‐tailing for the pure selenide phase.
- Subjects
SOLAR cells; THIN films; ENERGY consumption; MICROSTRUCTURE; MICROPHYSICS
- Publication
Advanced Energy Materials, 2015, Vol 5, Issue 7, pn/a
- ISSN
1614-6832
- Publication type
Article
- DOI
10.1002/aenm.201401372