Title :
Optimization of anti-reflective coatings for CIGS solar cells via real time spectroscopic ellipsometry
Author :
Grace Rajan;Krishna Aryal;Tasnuva Ashrafee;Shankar Karki;Abdel-Rahman Ibdah;Vikash Ranjan;Robert W. Collins;Sylvain Marsillac
Author_Institution :
Virginia Institute of Photovoltaic, Old Dominion University, Norfolk, USA
fDate :
6/1/2015 12:00:00 AM
Abstract :
In this study, we have optimized the anti-reflective coating for Cu(In1-xGax)Se2 (CIGS) absorbers. The structure of the CIGS solar device has been intensively monitored using in-situ spectroscopic ellipsometry, and the thickness has been optimized to optically enhance the performance of the device. Various simulation techniques have been employed to optimize the thickness of the AR coating and this modeling has been correlated with experimental results to obtain the highest efficiency for the device. The overall efficiency has increased approximately by 5% with the new optimized AR coating and the device parameters for the best cells are reported.
Keywords :
"Coatings","Physics","Ellipsometry","Absorption"
Conference_Titel :
Photovoltaic Specialist Conference (PVSC), 2015 IEEE 42nd
DOI :
10.1109/PVSC.2015.7355782