Polyfluorenes as materials for photoluminescence and electroluminescence
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United States of America Patent
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May 4, 1999
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app pub date -
Nov 5, 1997
filing date -
Mar 4, 1996
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Abstract
Fluorenes and polyfluorenes having one or two polar-group-containing alkyl substituents on their '9' carbon methylenes are disclosed together with the polymers' use as luminescent materials in organic light-emitting diodes and light-emitting electrochemical cells.
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