Recovery of thermal-degraded ZnO photodetector by embedding nano silver oxide nanoparticles

Zhan Shuo Hu, Fei Yi Hung, Kuan Jen Chen, Shoou Jinn Chang, Wei Kang Hsieh, Tsai Yu Liao, Tse Pu Chen

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The degraded performance of annealed ZnO-based photodetector can be recovered by embedding Ag 2 O nanoparticles resulted from the transformation of as-deposited Ag layer. After thermal treatment, the electrons were attracted at the interface between ZnO and Ag 2 O. The excess Ag + ions form the cluster to incorporate into the interstitial sites of ZnO lattice to create a larger amount of lattice defects for the leakage path. The photo-current of ZnO film with Ag 2 O nanoparticles is less than annealed ZnO film because the photo-induced electrons would flow into Ag 2 O side. ZnO photodetector with the appropriate Ag 2 O nanoparticles possesses the best rejection ratio.

Original languageEnglish
Pages (from-to)31-35
Number of pages5
JournalApplied Surface Science
Volume279
DOIs
Publication statusPublished - 2013 Aug 15

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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