Novel infrared-to-visible light upconversion devices are demonstrated by fabricating an organic light-emitting diode with an infrared-sensitizing layer. With a SnPc:C60 mixed layer as an infrared absorber and fac-tris(2-phenylpyridinato) iridium (III) (Irppy3) as an emitter, an infrared-to-green up-conversion device is demonstrated under 830-nm irradiation (see figure, ITO=indium tin oxide). The maximum photon-to-photon conversion efficiency is 2.7% at 15V.
[Communication]
Do Young Kim, Dong Woo Song, Neetu Chopra, Pieter De Somer, Franky So
Adv. Mater., March 29, 2010, DOI: 10.1002/adma.200903312. Read article.
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