Iptycene Metallafluorene의 합성과 광학적 특성 그리고 그들의 유기 LED 및 화학센서로서의 응용

Abstract

Triptycene Metallafluorene and Metallafluorene are synthe-sized and characterized. These compounds are of interest as light emissive layers, as they possessrelatively low LUMO energy levels while maintaining high HOMO-LUMO optical gaps. Dierentialscanning calorimetry measurements reveal that these Metallafluorene compounds have advantages of ther-mal stability above room temperature regions. Organic light-emitting diodes have been fabricatedusing thermal evaporation technique which emit blue light with an excellent diode behavior under the forward bias. In recent years, photoluminescence polysilole has been a topic of interest because of ther unusual electrical and optical properties. It is also reported that silole-containing polymers are selective chemosensors for nitroarematec oxidants,including TNT. Detection has been achieved though fluorescence quenching of the silole by the electron-deficient analyte. The luminescence of silole is due to a σ*-π* LUMO stabilized though conjugation of the σ* orbital of the silicon chain with the π* orbital of the butadiene moiety. The selectivity of the sensor is due to the helical structure of metallafluorene, which permits the intercalation of planar nitroaromatics.