Highly efficient light emitters based on the spiro concept
We present a comparison of different molecular glasses based on the spiro-concept with respect to their photoemission properties. The absorption and emission spectra as well as the photoluminescence quantum yields in solution are characterized. For thin amorphous films, prepared by vacuum vapor depo...
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Published in | Organic electronics Vol. 4; no. 2; pp. 61 - 69 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
01.09.2003
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Subjects | |
Online Access | Get full text |
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Summary: | We present a comparison of different molecular glasses based on the spiro-concept with respect to their photoemission properties. The absorption and emission spectra as well as the photoluminescence quantum yields in solution are characterized. For thin amorphous films, prepared by vacuum vapor deposition, we examined amplified spontaneous emission (ASE) by optical pumping with picosecond pulses at 337 nm. Efficient ASE emission with thresholds of down to 1 μJ/cm
2 was observed. |
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ISSN: | 1566-1199 1878-5530 |
DOI: | 10.1016/j.orgel.2003.08.002 |