文章基本信息

标题：Highly Sensitive Ultraviolet Photodetectors Fabricated from ZnO Quantum Dots/Carbon Nanodots Hybrid Films
本地全文：下载
作者：Deng-Yang Guo ; Chong-Xin Shan ; Song-Nan Qu 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2015
卷号：4
期号：1
DOI：10.1038/srep07469
语种：English
出版社：Springer Nature
摘要：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 × 10¹⁷ cmHz^1/2/W and 7.8 × 10⁻²⁰ W, 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.