title: Super-intense white upconversion emission of Yb2O3 polycrystals and its application on luminescence converter of dye-sensitized solar cells.
abstract: In this Letter, we present the observation of super-intense upconversion (UC) white emission of Yb2O3 under 980 nm excitation, its evolution on excitation power density, the UC mechanism, and its application on the luminescence converter of dye-sensitized solar cells (DSSCs). It is significant to observe that Yb2O3 demonstrates at least one order more intense UC luminescence than β-phase NaYF4:Yb3+, Er3+ and Yb2O3/DSSCs exhibit much better photovoltaic performance than β-phase NaYF4:Yb3+, Er3+/DSSCs under strong excitation. This indicates that Yb2O3 would become a novel candidate of the solar energy converter, especially in the application of concentrator solar cells.
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China.
authors.forename: Chuang
authors.initials: C
authors.lastname: Miao
authors.forename: Tong
authors.initials: T
authors.lastname: Liu
authors.forename: Yongsheng
authors.initials: Y
authors.lastname: Zhu
authors.forename: Qilin
authors.initials: Q
authors.lastname: Dai
authors.forename: Wen
authors.initials: W
authors.lastname: Xu
authors.forename: Lin
authors.initials: L
authors.lastname: Xu
authors.forename: Sai
authors.initials: S
authors.lastname: Xu
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhao
authors.forename: Hongwei
authors.initials: H
authors.lastname: Song