Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 25, Issue 21, Pages 2089-2092Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2013.2281467
Keywords
FZO nanorod; photodetector; hydrothermal; noise
Funding
- Center for Frontier Materials and Micro/Nano Science and Technology
- Advanced Optoelectronic Technology Center, National Cheng Kung University
- National Science Council of the Republic of Taiwan [NSC 99-2112-M-006-019-MY3]
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This letter reports the development of Fe-doped ZnO (FZO) nanorods via a low-temperature hydrothermal method and the fabrication of FZO nanorod metal-semiconductor-metal (MSM) photodetector (PD). The average length and diameter of the FZO nanorods were 4.5 mu m and similar to 100 nm, respectively. The ultraviolet-to-visible rejection ratio of the sample was similar to 23 when biased at 1 V, and the fabricated PD was visible-blind with a sharp cut-off at 375 nm. Furthermore, the noise equivalent power and detectivity of the fabricated FZO nanorod MSM PD were 6.27 x 10(-10) W and 2.12 x 10(10) cm.Hz(0.5).W-1, respectively.
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