Electric-field-dependent photoconductivity in CdS nanowires and nanobelts : exciton ionization, Franz–Keldysh, and Stark effects

• Main Authors: Li, Dehui, Zhang, Jun, Zhang, Qing, Xiong, Qihua
• 其他作者: School of Electrical and Electronic Engineering
• 格式: Article
• 語言: English
• 出版: 2013
• 在線閱讀: https://hdl.handle.net/10356/97561; http://hdl.handle.net/10220/10705

We report on the electric-field-dependent photoconductivity (PC) near the band-edge region of individual CdS nanowires and nanobelts. The quasi-periodic oscillations above the band edge in nanowires and nanobelts have been attributed to a Franz–Keldesh effect. The exciton peaks in PC spectra of the...