Light-stimulated carrier dynamics of CuInS2/CdS heterotetrapod nanocrystals.
We synthesized a heterotetrapod composed of a chalcopyrite(ch)-CuInS2 core and wurtzite(w)-CdS arms and elucidated its optical properties and light-stimulated carrier dynamics using fs-laser flash photolysis. The CuInS2/CdS heterotetrapod possessed quasi-type II band alignment, which caused much longer-lived charge separation than that in the isolated CuInS2 nanocrystal.
Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan. sakamoto@scl.kyoto-u.ac.jp teranisi@scl.kyoto-u.ac.jp.
Masanori
M
Sakamoto
Koki
K
Inoue
Makoto
M
Okano
Masaki
M
Saruyama
Sungwon
S
Kim
Yeong-Gi
YG
So
Koji
K
Kimoto
Yoshihiko
Y
Kanemitsu
Toshiharu
T
Teranishi