Dewetting-induced self-organization of nano- and microstructures for optoelectronic applications

Olaf Karthaus; Chihaya Adachi; Shiho Arakaki; Ayataka Endo; Toshihiro Wada

doi:10.1117/12.581911

16 February 2004 Dewetting-induced self-organization of nano- and microstructures for optoelectronic applications

Olaf Karthaus, Chihaya Adachi, Shiho Arakaki, Ayataka Endo, Toshihiro Wada

Proceedings Volume 5648, Smart Materials III; (2004) https://doi.org/10.1117/12.581911
Event: Smart Materials, Nano-, and Micro-Smart Systems, 2004, Sydney, Australia

Abstract

A dewetting process of an evaporating solution is used to form micrometer-sized amorphous droplets, or domes, of the low molar mass solute on substrates such as silicon, mica, glass, and indium-tin-oxide. Using dewetting, the organic hole transporting material of organic light emitting diodes was patterened into micrometer-sized domes on an indium-tin-oxide electrode. Annealing led to a structural change of the domes, which was investigated by optical and electron microscopies. The dewetted dome samples were then coated with electron transport material and top electrode to give functioning organic light emitting diodes. Microscope imaging reveals a strong luminescence from the micrometer-sized domes.

Citation Download Citation

Olaf Karthaus, Chihaya Adachi, Shiho Arakaki, Ayataka Endo, and Toshihiro Wada "Dewetting-induced self-organization of nano- and microstructures for optoelectronic applications", Proc. SPIE 5648, Smart Materials III, (16 February 2004); https://doi.org/10.1117/12.581911

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