title: Graphene-Skeleton Heat-Coordinated and Nanoamorphous-Surface-State Controlled Pseudo-Negative-Photoconductivity of Tiny SnO₂ Nanoparticles.
abstract: SnO2 nanoparticles display a pseudo-negative-photoconductivity (PsdNPC) effect, which shows that their resistance increases under light irradiation via a heating effect. The PsdNPC originates from intensive electron scattering of the nanoamorphous surface state of the SnO2 nanoparticles, resulting in a small inner current and a large absorption of moisture, leading to a large surface current. Graphene as the inner skeleton can shorten the response and recovery times.
authors.affiliation: Center for Nanoscale Characterization and Devices, Wuhan National Laboratory for Optoelectronics-School of Physics-School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, PR China.
authors.forename: Longwei
authors.initials: L
authors.lastname: Ding
authors.affiliation: Center for Nanoscale Characterization and Devices, Wuhan National Laboratory for Optoelectronics-School of Physics-School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, PR China.
authors.forename: Nishuang
authors.initials: N
authors.lastname: Liu
authors.affiliation: Center for Nanoscale Characterization and Devices, Wuhan National Laboratory for Optoelectronics-School of Physics-School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, PR China.
authors.forename: Luying
authors.initials: L
authors.lastname: Li
authors.affiliation: Center for Nanoscale Characterization and Devices, Wuhan National Laboratory for Optoelectronics-School of Physics-School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, PR China.
authors.forename: Xing
authors.initials: X
authors.lastname: Wei
authors.affiliation: Center for Nanoscale Characterization and Devices, Wuhan National Laboratory for Optoelectronics-School of Physics-School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, PR China.|Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Faculty of Physics and Electronic Science, Hubei University, Wuhan, 430062, PR China.
authors.forename: Xianghui
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Center for Nanoscale Characterization and Devices, Wuhan National Laboratory for Optoelectronics-School of Physics-School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, PR China.
authors.forename: Jun
authors.initials: J
authors.lastname: Su
authors.affiliation: Center for Nanoscale Characterization and Devices, Wuhan National Laboratory for Optoelectronics-School of Physics-School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, PR China.
authors.forename: Jiangyu
authors.initials: J
authors.lastname: Rao
authors.affiliation: Center for Nanoscale Characterization and Devices, Wuhan National Laboratory for Optoelectronics-School of Physics-School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, PR China.
authors.forename: Congxing
authors.initials: C
authors.lastname: Yang
authors.affiliation: Department of Physics, Florida International University, Miami, FL, 33199, USA.
authors.forename: Wenzhi
authors.initials: W
authors.lastname: Li
authors.affiliation: School of Physics and Technology, Center for Electron Microscopy and MOE Key Laboratory of Artificial Micro- and Nano-Structures, Wuhan University, Wuhan, 430072, PR China.
authors.forename: Jianbo
authors.initials: J
authors.lastname: Wang
authors.affiliation: Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Faculty of Physics and Electronic Science, Hubei University, Wuhan, 430062, PR China.
authors.forename: Haoshuang
authors.initials: H
authors.lastname: Gu
authors.affiliation: Center for Nanoscale Characterization and Devices, Wuhan National Laboratory for Optoelectronics-School of Physics-School of Optical and Electronic Information, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan, 430074, PR China.|Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Faculty of Physics and Electronic Science, Hubei University, Wuhan, 430062, PR China.
authors.forename: Yihua
authors.initials: Y
authors.lastname: Gao
keywords: SnO2 nanoparticles; graphene; heat-coordinated; nanoamorphous-surface-states; pseudo-negative-photoconductivity