title: Electrical transport properties of an isolated CdS microrope composed of twisted nanowires.
abstract: CdS is one of the important II-VI group semiconductors. In this paper, the electrical transport behavior of an individual CdS microrope composed of twisted nanowires is studied. It is found that the current-voltage (I-V) characteristics show two distinct power law regions from 360 down to 60 K. Space-charge-limited current (SCLC) theory is used to explain these temperature- and electric-field-dependent I-V curves. The I-V data can be well fitted by this theory above 100 K, and the corresponding carrier mobility, trap energy, and trap concentration are also obtained. However, the I-V data exhibit some features of the Coulomb blockade effect below 80 K.
authors: Collaborative Innovation Center for Low-Dimensional Nanomaterials and Optoelectronic Devices, Qingdao University, Qingdao, 266071 People's Republic of China ; College of Physics, Qingdao University, Qingdao, 266071 People's Republic of China ; College of Science and Information, Qingdao Agricultural University, Qingdao, 266109 People's Republic of China.
authors: Gui-Feng
authors: GF
authors: Yu
authors: Collaborative Innovation Center for Low-Dimensional Nanomaterials and Optoelectronic Devices, Qingdao University, Qingdao, 266071 People's Republic of China ; Department of Mechanical Engineering, Columbia University, New York, NY 10027 USA.
authors: Miao
authors: M
authors: Yu
authors: Collaborative Innovation Center for Low-Dimensional Nanomaterials and Optoelectronic Devices, Qingdao University, Qingdao, 266071 People's Republic of China ; College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109 People's Republic of China.
authors: Wei
authors: W
authors: Pan
authors: Collaborative Innovation Center for Low-Dimensional Nanomaterials and Optoelectronic Devices, Qingdao University, Qingdao, 266071 People's Republic of China ; College of Physics, Qingdao University, Qingdao, 266071 People's Republic of China.
authors: Wen-Peng
authors: WP
authors: Han
authors: Collaborative Innovation Center for Low-Dimensional Nanomaterials and Optoelectronic Devices, Qingdao University, Qingdao, 266071 People's Republic of China ; College of Physics, Qingdao University, Qingdao, 266071 People's Republic of China.
authors: Xu
authors: X
authors: Yan
authors: Collaborative Innovation Center for Low-Dimensional Nanomaterials and Optoelectronic Devices, Qingdao University, Qingdao, 266071 People's Republic of China ; College of Physics, Qingdao University, Qingdao, 266071 People's Republic of China.
authors: Jun-Cheng
authors: JC
authors: Zhang
authors: Collaborative Innovation Center for Low-Dimensional Nanomaterials and Optoelectronic Devices, Qingdao University, Qingdao, 266071 People's Republic of China ; College of Physics, Qingdao University, Qingdao, 266071 People's Republic of China.
authors: Hong-Di
authors: HD
authors: Zhang
authors: Collaborative Innovation Center for Low-Dimensional Nanomaterials and Optoelectronic Devices, Qingdao University, Qingdao, 266071 People's Republic of China ; College of Physics, Qingdao University, Qingdao, 266071 People's Republic of China ; Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, State Key Laboratory Cultivation Base of New Fiber Materials and Modern Textile, Qingdao University, Qingdao, 266071 People's Republic of China.
authors: Yun-Ze
authors: YZ
authors: Long
keywords: CdS microrope; Coulomb blockade; Space-charge-limited current