Abstract
Deep blue photoluminescence and electroluminescence are demonstrated from a soluble conjugated polymer, poly(9,9-dihexylfluorene-alt-co-2,5-didecyloxy-para-phenylene). The PL quantum efficiency is approximately 40%. Cyclic voltammetry measurements indicate that the highest occupied molecular orbital and lowest unoccupied molecular orbital energies are 5.66 and 2.62 eV below vacuum, respectively. Single-layer and multilayer light-emitting diodes emit deep blue light (peak at ∼420 nm).
Original language | English |
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Pages (from-to) | 3270-3272 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 75 |
Issue number | 21 |
DOIs | |
State | Published - 22 Nov 1999 |
Externally published | Yes |