Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7223362 | Optik - International Journal for Light and Electron Optics | 2018 | 6 Pages |
Abstract
CdS nanoflake arrays (NFAs) have been synthesized through a simple one-step chemical bath deposition method. Morphology and structural characterizations revealed good crystal quality and growth uniformity of this structure. A visible-light photodetector based on the NFAs has been fabricated as well. Under the illumination with 440â¯nm light and 1.1â¯mW/cm2, its responsivity can reach as high as 629â¯A/W and the specific detectivity runs up to 1.4â¯Ãâ¯1013 Jones. We attribute this high performance to the synergy effect of the enhanced light absorption and optimized carrier transport, which is resulted from this special nanoflake array structure and the vertical device design. Our study indicates that CdS NFAs have great potential in large-scale production and wide application in the field of high performance photodetector.
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Engineering (General)
Authors
Junwen Li, Yunsong Zhu, Mingling Li, Hongbing Cai, Huaiyi Ding, Nan Pan, Xiaoping Wang,