Mn-doped Zn2SiO4 thin film with green fluorescence enhanced by Ag nano island surface plasmon effect

Kun Cheng Peng, Yi Chung Lin, Shiu Jen Liu, Tai Er Chen, Chun Ying Lee

研究成果: 雜誌貢獻期刊論文同行評審


20-100nm thin films of silver were first deposited on quartz glass by magnetron sputtering. These specimens were then annealed at 500 °C for 15 min by rapid thermal annealing (RTA), which might change the silver films into having a morphology of nano islands. Subsequently, a thin film of Mn-doped ZnO was deposited on the above specimens in a sputtering system. These specimens were removed from the sputtering system and annealed again in an atmospheric furnace at 1200 °C for 2 h. By X-ray diffraction (XRD) analysis, the annealed samples were identified as Mndoped Zn2SiO4 crystals. Furthermore, photoluminescence (PL) measurement showed the 530nm (green light) fluorescence. The silver nano islands embedded in the Mn-doped Zn2SiO4 crystals tended to show an increase in PL intensity in the following order and in increase rate composed with their pristine Mn-doped Zn2SiO4 counterpart: 100nm Ag (-0:33%), 50nm Ag (-0:02%), 20nm Ag (87.4%), 40nm Ag (124.3%), and 30nm Ag (168.5%). Accordingly, the plasmon effect may lead to the enhancement of fluorescence, and the size of silver nano islands determines the increase rate.

期刊Japanese Journal of Applied Physics
發行號11 PART 2
出版狀態已發佈 - 2013 十一月 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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