Xanthene-based phosphine oxide host with the planar multi-insulating structure for efficient electrophosphorescence
Source abstract
Abstract
Abstract A phosphine oxide (PO) host containing planar xanthene ( XantPO ) was chosen to investigate the influence of the structure of chromophores on the properties of the host. Owing to the multi-insulating linkages, the planar structure of XantPO also realizes high first triplet excited level ( T 1 ) of 2.92 eV, and supports excellent morphological and thermal stability with the high temperature of glass transition ( T g , 135 °C) and temperature of decomposition ( T d , 369 °C). On the basis of theoretical simulation and electrochemical analysis and bright and efficient green and blue phosphorescent organic light-emitting diodes (PHOLEDs) of XantPO , it indicated that the configuration of chromophores in hosts can remarkably influence the device performance even if their optical properties were very approximate.
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Research context
OpenAlex topics: Organic Light-Emitting Diodes Research · Conducting polymers and applications · Organic Electronics and Photovoltaics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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