Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5368224 | Applied Surface Science | 2010 | 4 Pages |
Abstract
We report on the fabrication and characterization of MgZnO/SiO2/n-Si structured photodetectors, for the visible-blind monitoring. The current-voltage curve of the heterojunction shows obvious rectifying behaviors. In the visible range, the photocurrent decreased rapidly. In additionally, the ultraviolet/visible rejection ratio (R340Â nm/R500Â nm) was about four orders of magnitude at reverse bias, indicating a high degree of visible blindness. The key role of the insulating SiO2 layer will be discussed in terms of the band diagrams of the heterojunctions.
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Da-Yong Jiang, Xi-Yan Zhang, Quan-Sheng Liu, Zhao-Hui Bai, Li-Ping Lu, Xiao-Chun Wang, Xiao-Yun Mi, Neng-Li Wang, De-Zhen Shen,