Abstract
AbstractWe synthesized novel silicon‐based alternating copolymers for tunable electroluminescent (EL) colors by Heck synthetic method. Their thermal, photophysical and electroluminescent properties were studied. Most of them exhibited a blue‐green EL color at the operating voltage of lower than 12 V. Unusually, we observed the white EL color from a EL device based on SiPhPVK. From photophysical studies and the time‐resolved PL spectroscopies, it might be attributed to the formation of stabilized excited state in SiPhPVK. Furthermore, in order to reduce the operating voltage of their LED with increasing the electron affinity of the main chain in silicon‐based alternating copolymers, we synthesized the silicon‐based copolymers containing electron transporting oxadiazole units in main chain. We also studied their photophysical and electroluminescent properties.
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