Title :
Copper antimony chalcogenide thin film PV device development
Author :
Adam W. Welch;Lauryn L. Baranowski;Francisco Willian de Souza Lucas;Eric S. Toberer;Colin A. Wolden;Andriy Zakutayev
Author_Institution :
National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO 80401, USA
fDate :
6/1/2015 12:00:00 AM
Abstract :
Emerging ternary chalcogenide thin film solar cell technologies, such as CuSbS2 and CuSbSe2, have recently attracted attention as simpler alternatives to quaternary Cu2ZnSnS4 (CZTS). Despite suitable photovoltaic properties, the initial energy conversion efficiency of CuSbS2 is rather low (0.3%). Here, we report on our progress towards improving the efficiency of CuSbS2 solar cells using a high throughput approach. The combinatorial methodology quickly results in baseline solar cell prototypes with 0.6% efficiency, and then modification of the back contact architecture leads to 1% PV devices. We then translate the optimal CuSbS2 synthesis parameters to CuSbSe2 devices, which show 3% efficiencies.
Keywords :
"Photovoltaic cells","Photovoltaic systems","Performance evaluation","Films","Yttrium","Prototypes"
Conference_Titel :
Photovoltaic Specialist Conference (PVSC), 2015 IEEE 42nd
DOI :
10.1109/PVSC.2015.7356357