Controlled Growth of Rubrene Nanowires by Eutectic Melt Crystallization

Organic semiconductors including rubrene, Alq 3 , copper phthalocyanine and pentacene are crystallized by the eutectic melt crystallization. Those organic semiconductors form good eutectic systems with the various volatile crystallizable additives such as benzoic acid, salicylic acid, naphthalene an...

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Bibliographic Details
Published in:Scientific reports 2016-03, Vol.6 (1), p.23108, Article 23108
Main Authors: Chung, Jeyon, Hyon, Jinho, Park, Kyung-Sun, Cho, Boram, Baek, Jangmi, Kim, Jueun, Lee, Sang Uck, Sung, Myung Mo, Kang, Youngjong
Format: Article
Language:English
Subjects:
639/301/923/3931
639/638/298/923/3931
Benzoic acid
Crystal structure
Crystallization
Humanities and Social Sciences
Melting
multidisciplinary
Nanotechnology
Nanowires
Naphthalene
Salicylic acid
Science
Temperature effects
Trichlorobenzene
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Summary:Organic semiconductors including rubrene, Alq 3 , copper phthalocyanine and pentacene are crystallized by the eutectic melt crystallization. Those organic semiconductors form good eutectic systems with the various volatile crystallizable additives such as benzoic acid, salicylic acid, naphthalene and 1,3,5-trichlorobenzene. Due to the formation of the eutectic system, organic semiconductors having originally high melting point ( T m  > 300 °C) are melted and crystallized at low temperature ( T e  = 40.8–133 °C). The volatile crystallizable additives are easily removed by sublimation. For a model system using rubrene, single crystalline rubrene nanowires are prepared by the eutectic melt crystallization and the eutectic-melt-assisted nanoimpinting (EMAN) technique. It is demonstrated that crystal structure and the growth direction of rubrene can be controlled by using different volatile crystallizable additives. The field effect mobility of rubrene nanowires prepared using several different crystallizable additives are measured and compared.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep23108