Title: Electroluminescence from low-dimensionally confined crystals of thiophene/<i>p</i>-phenylene co-oligomers
Abstract:Organic electroluminescence from epitaxially oriented needle crystals of a thiophene/p-phenylene co-oligomer was studied. The crystals grown by vapor deposition on a KCl (100) surface were confined in...Organic electroluminescence from epitaxially oriented needle crystals of a thiophene/p-phenylene co-oligomer was studied. The crystals grown by vapor deposition on a KCl (100) surface were confined in a p-sexiphenyl (p-6P) layer. After deposition of an Al cathode the film was wet transferred onto an indium tin oxide (ITO) coated glass. At a low bias voltage, this cell exhibited homogeneous blue light emission from the p-sexiphenyl layer due to carrier recombination in the ITO/p-6P/Al region. With an increase of the voltage, the electroluminescence band shifted to the longer wavelengths corresponding to the green spectrum of the co-oligomer. This emission was concentrated on the needle crystals and suggested that the injected holes were confined inside this low-dimensional structure and recombined with electrons injected from the p-6P layer.Read More
Publication Year: 2002
Publication Date: 2002-08-19
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 73
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