Emissive efficiency enhancement of Alq3 and prospects for plasmon-enhanced organic electroluminescence

Wenming Li; Shanlin Pan; Lewis J. Rothberg

doi:10.1117/12.796177

26 August 2008 Emissive efficiency enhancement of Alq₃ and prospects for plasmon-enhanced organic electroluminescence

Wenming Li, Shanlin Pan, Lewis J. Rothberg

Proceedings Volume 7032, Plasmonics: Metallic Nanostructures and Their Optical Properties VI; 703224 (2008) https://doi.org/10.1117/12.796177
Event: NanoScience + Engineering, 2008, San Diego, California, United States

Abstract

We study the photoluminescence of Alq₃ on nanotextured silver surfaces to investigate the feasibility of using plasmon enhancement of radiative rates to improve the performance of organic light-emitting diodes. We observe more than 20-fold increases in photoluminescence and separate the contributions of absorption and emissive efficiency increases. With optimized silver coverage, the fraction of excited states created that fluorescence can be made nearly 100 %, an increase of more than 3 times relative to thin films without silver.

Citation Download Citation

Wenming Li, Shanlin Pan, and Lewis J. Rothberg "Emissive efficiency enhancement of Alq₃ and prospects for plasmon-enhanced organic electroluminescence", Proc. SPIE 7032, Plasmonics: Metallic Nanostructures and Their Optical Properties VI, 703224 (26 August 2008); https://doi.org/10.1117/12.796177

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