Observation of 1.5μm photoluminescence and electroluminescence from a holmium organic complex
作者： FX Zang , WL Li , ZR Hong , HZ Wei , MT Li
DOI: 10.1063/1.1764593
关键词:
摘要: Electroluminescence (EL) and photoluminescence in both the visible near-infrared spectral range were observed from a holmium(dibenzoylmethanato)3(bathophenanthroline) [Ho(DBM)3bath]. Five peaks at 580nm, 660nm, 980nm, 1200nm, 1500nm, respectively, attributed to internal 4f electronical transitions of Ho3+ ions. Except for emissions ions, broadband exciplex emission 480nmto670nm appeared EL cases. The intensity organic interface showed tendency saturation beyond certain driving voltage, while ions kept increasing. This evolution spectra was discussed terms extension charge recombination zone. 1500nm corresponding F55→I65 transition suggests that Ho(DBM)3bath is potential candidate optical communications.
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