Highly sensitive ultraviolet photodetectors fabricated from ZnO quantum dots/carbon nanodots hybrid films.
Highly sensitive ultraviolet photodetectors fabricated from ZnO quantum dots/carbon nanodots hybrid films.
复制标题
由 ZnO 量子点/碳纳米点混合薄膜制成的高灵敏度紫外光电探测器
DOI:
10.1038/srep07469
复制
发表时间:
2014-12-12
影响因子:
4.6
通讯作者:
Shen DZ
中科院分区:
文献类型:
--
作者:
Guo DY;Shan CX;Qu SN;Shen DZ
Ultraviolet photodetectors have been fabricated from ZnO quantum dots/carbon nanodots hybrid films and the introduction of carbon nanodots improves the performance of the photodetectors greatly. The photodetectors can be used to detect very weak ultraviolet signals (as low as 12 nW/cm2). The detectivity and noise equivalent power of the photodetector can reach 3.1 × 1017cmHz1/2/W and 7.8 × 10−20W, respectively, both of which are the best values ever reported for ZnO-based photodetectors. The mechanism for the high sensitivity of the photodetectors has been attributed to the enhanced carrier-separation at the ZnO/C interface.
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