High-performance nanostructured inorganic-organic heterojunction solar cells.
We report all solid-state nanostructured inorganic-organic heterojunction solar cells fabricated by depositing Sb(2)S(3) and poly(3-hexylthiophene) (P3HT) on the surface of a mesoporous TiO(2) layer, where Sb(2)S(3) acts as an absorbing semiconductor and P3HT acts as both a hole conductor and light absorber. These inorganic-organic light harvesters perform remarkably well with a maximum incident-photon-to-current efficiency (IPCE) of 80% and power conversion efficiency of 5.13% under air-mass 1.5 global (AM 1.5G) illumination with the intensity of 100 mW cm(-2). These devices are highly stable under room light in air, even without encapsulation. The present findings offer novel directions for achieving high-efficiency solid-state solar cells by hybridization of inorganic-organic light harvesters and hole transporters.
KRICT-EPFL Global Research Laboratory, Advanced Materials Division, Korea Research Institute of Chemical Technology, Yuseong, Daejeon, Republic of Korea.
Jeong Ah
JA
Chang
Jae Hui
JH
Rhee
Sang Hyuk
SH
Im
Yong Hui
YH
Lee
Hi-jung
HJ
Kim
Sang Il
SI
Seok
Md K
MK
Nazeeruddin
Michael
M
Gratzel