Noise Properties of Ag Nanoparticle-Decorated ZnO Nanorod UV Photodetectors

Chih Chiang Yang, Hsin-Chieh Yu*, Yan Kuin Su, Ming Yueh Chuang, Chih Hung Hsiao, Tsung Hsien Kao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


A novel and simple hydrothermal method was performed to synthesize vertically aligned Ag nanoparticle (NP)-decorated ZnO nanorods (NRs) on a seed layer/glass substrate. At an applied bias of 0.2 V and incident light wavelength of 380 nm, the measured fabricated photodetector (PD) responsivity value was ∼12.4 A/W, whereas the corresponding UV to visible rejection ratio was ∼4478. In addition, the noise equivalent power and corresponding detectivities of the fabricated Ag NP-decorated ZnO NR metal-semiconductor-metal (MSM) PD were 4.85 × 10-11W and 2.72 × 1011cm Hz 0.5W-1, respectively.

Original languageEnglish
Article number7303896
Pages (from-to)379-382
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number4
StatePublished - 15 Feb 2016


  • Ag Nanoparticle-Decorated ZnO
  • Low-Frequency Noise
  • hydrothermal method
  • photodetector nanorods


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