Near‐Infrared Inorganic/Organic Optical Upconverter with an External Power Efficiency of >100%
Abstract:A near‐infrared (1.5 μm) to visible light (green) electro‐optical upconverter with amplified power gain has been designed and demonstrated. The device was fabricated by direct tandem integration of an organic light emitting diode with an inorganic InGaAs/InP heterojunction phototransistor. An overall external upconversion power efficiency of 155% was measured at room temperature, demonstrating the utility of hybrid organic/inorganic semiconductor systems.
Document Type: Communications
Affiliations: 1: Department of Electrical and Computer Engineering, University of Waterloo, 200 University Avenue West, Waterloo, N2L 3G1 (Canada) 2: Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, M5S 3E4 (Canada) 3: Institute for Microstructural Sciences, National Research Council, 1200 Montreal Road, Ottawa, K1A 0R6 (Canada)
Publication date: 2010-11-16