Balanced Dipole Effects on Interfacial Engineering for Polymer/TiO2Array Hybrid Solar Cells.
The polymer/TiO2array heterojunction interfacial characteristics can be tailored by balanced dipole effects through integration of TiO2-quantum dots (QDs) and N719 at heterojunction interface, resulting in the tunable photovoltaic performance. The changes of Vocwith interfacial engineering originate from the shift of the conduction band (Ec) edge in the TiO2nanorod by the interfacial dipole with different directions (directed away or toward the TiO2nanorod). The Jscimprovement originates from the enhanced charge separation efficiency with an improved electronic coupling property and better charge transfer property. The balanced dipole effects caused by TiO2-QDs and N719 modification on the device Vocare confirmed by the changed built-in voltage Vbiand reverse saturation current density Js.
School of Science and Key Lab of Optoelectronic Materials and Devices, Huzhou University, Huzhou, 313000, People's Republic of China. wufanjay@126.com.
Fan
F
Wu
School of Science and Key Lab of Optoelectronic Materials and Devices, Huzhou University, Huzhou, 313000, People's Republic of China.
Yanyan
Y
Zhu
School of Science and Key Lab of Optoelectronic Materials and Devices, Huzhou University, Huzhou, 313000, People's Republic of China.
Xunheng
X
Ye
School of Science and Key Lab of Optoelectronic Materials and Devices, Huzhou University, Huzhou, 313000, People's Republic of China.
Xiaoyi
X
Li
Department of Material Chemistry, Huzhou University, Huzhou, 313000, People's Republic of China.
Yanhua
Y
Tong
School of Science and Key Lab of Optoelectronic Materials and Devices, Huzhou University, Huzhou, 313000, People's Republic of China.
Jiaxing
J
Xu
Array; Hybrid solar cells; Interfacial engineering; TiO2