Cu2ZnSnSe4 Thin‐Film Solar Cells by Thermal Co‐evaporation with 11.6% Efficiency and Improved Minority Carrier Diffusion Length. Issue 7 (10th December 2014)

• Record Type: Journal Article
• Authors: Lee, Yun Seog; Gershon, Talia; Gunawan, Oki; Todorov, Teodor K.; Gokmen, Tayfun; Virgus, Yudistira; Guha, Supratik
• Is Part Of: Advanced energy materials. Volume 5:Issue 7(2015:Apr.)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2014-12-10
• Subjects: Energy harvesting -- Materials -- Periodicals; Energy conversion -- Materials -- Periodicals; Energy storage -- Materials -- Periodicals; Photovoltaics -- Periodicals; Fuel cells -- Periodicals; Thermoelectric materials -- Periodicals; 621.31
• DOI: 10.1002/aenm.201401372
• Languages: English
• ISSNs: 1614-6832

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="aenm201401372-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>11.6%‐efficiency Cu₂ZnSnSe₄ (CZTSe) thin‐film solar cells</bold> 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. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgjhgnzshc" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>