Title of article
Temperature activated de-trapping processes in vacuum deposited sexithiophene thin films
Author/Authors
Cerminara، نويسنده , , M. and Borghesi، نويسنده , , A. and Meinardi، نويسنده , , F. and Sassella، نويسنده , , A. and Tubino، نويسنده , , R. and Papagni، نويسنده , , A.، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 2002
Pages
4
From page
63
To page
66
Abstract
Photoluminescence (PL) emission spectra of sexithiophene (6T) thin films grown on different substrates by organic molecular beam deposition (OMBD) are studied in the range of temperature from 300 to 7 K. Besides the two vibronic progressions detectable between 300 and 50 K, related to the radiative recombination of the free exciton and to a structural defect state, a new emission is observed at temperatures lower than 40 K, whose origin is discussed in terms of exciton bound to a structural defects.
Keywords
optical spectroscopy , Oligothiophenes , molecular excitons
Journal title
Synthetic Metals
Serial Year
2002
Journal title
Synthetic Metals
Record number
2076540
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