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Device characteristics of a 10.1% hydrazine‐processed Cu 2 ZnSn(Se,S) 4 solar cell
Author(s) -
Barkhouse D. Aaron R.,
Gunawan Oki,
Gokmen Tayfun,
Todorov Teodor K.,
Mitzi David B.
Publication year - 2012
Publication title -
progress in photovoltaics: research and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.286
H-Index - 131
eISSN - 1099-159X
pISSN - 1062-7995
DOI - 10.1002/pip.1160
Subject(s) - kesterite , equivalent series resistance , thin film solar cell , hydrazine (antidepressant) , photoluminescence , solar cell , materials science , optoelectronics , thin film , quantum efficiency , energy conversion efficiency , capacitance , spectroscopy , carrier lifetime , nanotechnology , chemistry , czts , electrical engineering , physics , silicon , engineering , electrode , chromatography , voltage , quantum mechanics
ABSTRACT A power conversion efficiency record of 10.1% was achieved for kesterite absorbers, using a Cu 2 ZnSn(Se,S) 4 thin‐film solar cell made by hydrazine‐based solution processing. Key device characteristics were compiled, including light/dark J–V , quantum efficiency, temperature dependence of V oc and series resistance, photoluminescence, and capacitance spectroscopy, providing important insight into how the devices compare with high‐performance Cu(In,Ga)Se 2 . The record kesterite device was shown to be primarily limited by interface recombination, minority carrier lifetime, and series resistance. The new level of device performance points to the significant promise of the kesterites as an emerging and commercially interesting thin‐film technology. Copyright © 2011 John Wiley & Sons, Ltd.