title: Temperature Dependence of the Piezotronic and Piezophototronic Effects in a-axis GaN Nanobelts.
abstract: The temperature dependence of the piezotronic and piezophototronic effects in a-axis GaN nanobelts from 77 to 300 K is investigated. The piezotronic effect is enhanced by over 440% under lower temp-eratures. Two independent processes are discovered to form a competing mechanism through the investigation of the temperature dependence of the piezophototronic effect in a-axis GaN nanobelts.
authors.affiliation: School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA.|Guangdong Engineering Research Center of Optoelectronic Functional Materials and Devices, South China Normal University, Guangzhou, 510631, China.
authors.forename: Xingfu
authors.initials: X
authors.lastname: Wang
authors.affiliation: School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA.
authors.forename: Ruomeng
authors.initials: R
authors.lastname: Yu
authors.affiliation: School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA.
authors.forename: Wenbo
authors.initials: W
authors.lastname: Peng
authors.affiliation: School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA.
authors.forename: Wenzhuo
authors.initials: W
authors.lastname: Wu
authors.affiliation: Guangdong Engineering Research Center of Optoelectronic Functional Materials and Devices, South China Normal University, Guangzhou, 510631, China.
authors.forename: Shuti
authors.initials: S
authors.lastname: Li
authors.affiliation: School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA.|Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, China.
authors.forename: Zhong Lin
authors.initials: ZL
authors.lastname: Wang
keywords: a-axis; gallium nitride; piezophototronic effects; piezotronic effects; temperature dependence