Nanoscale Research Letters (Jan 2010)

Nanosilver Colloids-Filled Photonic Crystal Arrays for Photoluminescence Enhancement

  • Park Hyeong-Ho,
  • Park Seong-Je,
  • Lee Soon-Won,
  • Jeong Sohee,
  • Lee Ji-Hye,
  • Choi Dae-Geun,
  • Jeong Jun-Ho,
  • Choi Jun-Hyuk

Journal volume & issue
Vol. 5, no. 10
pp. 1590 – 1595

Abstract

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Abstract For the improved surface plasmon-coupled photoluminescence emission, a more accessible fabrication method of a controlled nanosilver pattern array was developed by effectively filling the predefined hole array with nanosilver colloid in a UV-curable resin via direct nanoimprinting. When applied to a glass substrate for light emittance with an oxide spacer layer on top of the nanosilver pattern, hybrid emission enhancements were produced from both the localized surface plasmon resonance-coupled emission enhancement and the guided light extraction from the photonic crystal array. When CdSe/ZnS nanocrystal quantum dots were deposited as an active emitter, a total photoluminescence intensity improvement of 84% was observed. This was attributed to contributions from both the silver nanoparticle filling and the nanoimprinted photonic crystal array.

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