TY - JOUR
T1 - Effects of Ag on the carrier lifetime and efficiency of (Cu1-x Ag x)2SnS3solar cells
AU - Kanai, Ayaka
AU - Tosuke, Taichi
AU - Araki, Hideaki
AU - Sugiyama, Mutsumi
N1 - Publisher Copyright:
© 2021 The Japan Society of Applied Physics.
PY - 2021/3
Y1 - 2021/3
N2 - The effects of Ag in (Cu1-x Ag x )2SnS3 (CATS) were investigated in terms of photoluminescence (PL) lifetime, carrier concentration, and solar cell performance with varying Ag/(Cu + Ag) ratios, x. The PL lifetime of CATS solar cells had a maximum value when x was within 7%. A similar tendency was observed for other parameters of the CATS thin films and solar cells. One of the reasons for this is that the number of non-radiative recombination centers in the CATS layer is suppressed by the sulfurization process with Ag. Therefore, even if the Ag content changes slightly in the 0%-11% range, the crystal quality is changed in CATS, resulting in a significant effect on the properties of solar cells. These investigations on the characterization and device physics can be applied to improve the efficiency of CATS solar cells.
AB - The effects of Ag in (Cu1-x Ag x )2SnS3 (CATS) were investigated in terms of photoluminescence (PL) lifetime, carrier concentration, and solar cell performance with varying Ag/(Cu + Ag) ratios, x. The PL lifetime of CATS solar cells had a maximum value when x was within 7%. A similar tendency was observed for other parameters of the CATS thin films and solar cells. One of the reasons for this is that the number of non-radiative recombination centers in the CATS layer is suppressed by the sulfurization process with Ag. Therefore, even if the Ag content changes slightly in the 0%-11% range, the crystal quality is changed in CATS, resulting in a significant effect on the properties of solar cells. These investigations on the characterization and device physics can be applied to improve the efficiency of CATS solar cells.
UR - http://www.scopus.com/inward/record.url?scp=85102452977&partnerID=8YFLogxK
U2 - 10.35848/1347-4065/abe60b
DO - 10.35848/1347-4065/abe60b
M3 - Article
AN - SCOPUS:85102452977
SN - 0021-4922
VL - 60
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 3
M1 - 035508
ER -