Cu2ZnSnSe4 Thin-Film Solar Cells by Thermal Co-evaporation with 11.6% Efficiency and Improved Minority Carrier Diffusion Length

Cu2ZnSnSe4 Thin-Film Solar Cells by Thermal Co-evaporation with 11.6% Efficiency and Improved Minority Carrier Diffusion Length

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...

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Veröffentlicht in:Advanced energy materials 2015-04, Vol.5 (7), p.n/a
Hauptverfasser: Lee, Yun Seog, Gershon, Talia, Gunawan, Oki, Todorov, Teodor K., Gokmen, Tayfun, Virgus, Yudistira, Guha, Supratik
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electro-optical materials
photovoltaic devices
semiconductors
solar cells
thin films
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container_issue 7
container_start_page
container_title Advanced energy materials
container_volume 5
creator Lee, Yun Seog
Gershon, Talia
Gunawan, Oki
Todorov, Teodor K.
Gokmen, Tayfun
Virgus, Yudistira
Guha, Supratik
description 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.
doi_str_mv 10.1002/aenm.201401372
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subjects electro-optical materials
photovoltaic devices
semiconductors
solar cells
thin films
title Cu2ZnSnSe4 Thin-Film Solar Cells by Thermal Co-evaporation with 11.6% Efficiency and Improved Minority Carrier Diffusion Length
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