Photoswitching Characteristics of LiNbO3/ZnO/n-Si Heterojunction

Autor: Lan Zhong Hao, Wen Yue Guo, Lian Qing Yu, Wan Li Zhang, Jun Zhu, Yun Jie Liu
Rok vydání: 2015
Předmět:
Zdroj: Key Engineering Materials. 655:186-190
ISSN: 1662-9795
DOI: 10.4028/www.scientific.net/kem.655.186
Popis: (001)-oriented LiNbO3(LN) ferroelectric films were grown on (100)-oriented n-type Si substrates using 15 nm-thick ZnO layers as buffers by pulse laser deposition technique and the LN/ZnO/n-Si heterojunctions were fabricated. Obvious photoswitching characteristics to white light were observed when the reverse voltages were applied on the LN/ZnO/n-Si heterojunction. High performance was exhibited, such as a largeON/OFFratio, short photoresponse time, steadyONorOFFstates, and well reversible. The results were discussed in terms of the band diagrams of the LN/ZnO/Si heterojunctions in this work.
Databáze: OpenAIRE