title: Hexagonal-like Nb₂O₅ nanoplates-based photodetectors and photocatalyst with high performances.
abstract: Ultraviolet (UV) photodetectors are important tools in the fields of optical imaging, environmental monitoring, and air and water sterilization, as well as flame sensing and early rocket plume detection. Herein, hexagonal-like Nb₂O₅ nanoplates are synthesized using a facile solvothermal method. UV photodetectors based on single Nb₂O₅ nanoplates are constructed and the optoelectronic properties have been probed. The photodetectors show remarkable sensitivity with a high external quantum efficiency (EQE) of 9617%, and adequate wavelength selectivity with respect to UV-A light. In addition, the photodetectors exhibit robust stability and strong dependence of photocurrent on light intensity. Also, a low-cost drop-casting method is used to fabricate photodetectors based on Nb₂O₅ nanoplate film, which exhibit singular thermal stability. Moreover, the hexagonal-like Nb₂O₅ nanoplates show significantly better photocatalytic performances in decomposing Methylene-blue and Rhdamine B dyes than commercial Nb₂O₅.
authors.affiliation: Department of Materials Science, Fudan University, Shanghai 200433, P. R. China.
authors.forename: Hui
authors.initials: H
authors.lastname: Liu
authors.affiliation: Department of Materials Science, Fudan University, Shanghai 200433, P. R. China.
authors.forename: Nan
authors.initials: N
authors.lastname: Gao
authors.affiliation: Optical and Electronic Materials Unit, National Institute for Materials Science (NIMS) Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan.
authors.forename: Meiyong
authors.initials: M
authors.lastname: Liao
authors.affiliation: Department of Materials Science, Fudan University, Shanghai 200433, P. R. China.
authors.forename: Xiaosheng
authors.initials: X
authors.lastname: Fang