Chemistry Letters · 2005 · 19 citations · 4 references
Natural SciencesMaterials EngineeringMaterials ScienceElectronic MaterialsOptical MaterialsPhotonicsLight SourcesLight-emitting DiodesLuminescent MaterialsOrganic Electronic MaterialsOrganic SemiconductorsPhotosynthetic PigmentsElectroluminescenceEmission Spectra AnalysisExternal Quantum EfficiencyOrganic Light-emitting DiodesOrganic Light-emitting MaterialsPhotoluminescencePhotoluminescence SpectroscopyQuantum Efficiency
Abstract We fabricated organic-light-emitting diode (OLED) from chlorophyll a, and measured electroluminescence (EL) and photoluminescence (PL) spectra. The EL spectrum exhibits a peak at 700 nm and a shoulder at 750 nm, while the PL spectrum exhibits a peak at 750 nm. The external quantum efficiency of the fabricated OLED linearly increases for the applied voltage above V = 4 V and reaches to 9 × 10−8 at V = 8 V.
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A light-emitting diode fabricated from horse-heart cytochrome c
Hiroyuki Tajima, Shingo Ikeda, Masaki Matsuda et al. · Solid State Communications · 2003 · 26 citations