We have investigated the disorder-determined optical properties of ?-sexithiophene by comparing measurements of an evaporated film and a single crystal. We observed for the first time sharp lines in absorption and photoluminescence from both samples representing the intrinsic electronic properties of the material. The time-integrated emission spectra of both samples are dominated by radiative trap emission, which is more pronounced in the film due to the higher degree of disorder
Excitation dynamics in ?-sexithiophene single crystals and UHV-grown films
M Muccini;M Murgia;R Zamboni;
1998
Abstract
We have investigated the disorder-determined optical properties of ?-sexithiophene by comparing measurements of an evaporated film and a single crystal. We observed for the first time sharp lines in absorption and photoluminescence from both samples representing the intrinsic electronic properties of the material. The time-integrated emission spectra of both samples are dominated by radiative trap emission, which is more pronounced in the film due to the higher degree of disorderFile in questo prodotto:
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