7 February 2007 Growth of nanofibers from thiophenes, thiophene-phenylenes, and phenylenes: a systematic study
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Abstract
The synthesis of molecules consisting of various combinations of phenylene and thiophene groups and the subsequent vacuum growth of needle-shaped nanoaggregates on specific surfaces allows us a systematic investigation of the transition between single parallel and multiple aligned needle ('nanofiber') growth. The former growth mode is observed for blue light emitting phenylene fibers, whereas the latter growth mode appears for single crystalline fibers made from green- and orange-light emitting oligo-thiophenes and thiophene/phenylene co-oligomers. In all cases the tailored bottom-up growth results in strongly polarized light emission along specific surface directions. The results are compared to those found for nanoaggregates made from less rod-like organic molecules, namely rubrene and POPOP.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Frank Balzer, Frank Balzer, Manuela Schiek, Manuela Schiek, Arne Lützen, Arne Lützen, Katharina Al-Shamery, Katharina Al-Shamery, Horst-Günter Rubahn, Horst-Günter Rubahn, } "Growth of nanofibers from thiophenes, thiophene-phenylenes, and phenylenes: a systematic study", Proc. SPIE 6470, Organic Photonic Materials and Devices IX, 647006 (7 February 2007); doi: 10.1117/12.700043; https://doi.org/10.1117/12.700043
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