Crystal growth of rubrene in ionic liquids by vacuum vapor deposition
Crystal growth of rubrene in ionic liquids by vacuum vapor deposition
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DOI：
10.7567/jjap.53.05ft03
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发表时间：
2014-05-01
影响因子：
1.5
通讯作者：
Ishida, Kenji
中科院分区：
文献类型：
--
作者：
Horike, Shohei;Koshiba, Yasuko;Ishida, Kenji
研究了离子液体辅助真空气相沉积法制备的有机半导体红荧烯的晶体生长和独特的形貌变化。红荧烯薄膜的织构和结构强烈依赖于衬底上的离子液体薄膜的厚度，即在3D-ILs中的三维枝晶，在2D-ILs中的二维微纤维，和在0 D-ILs中的二维球晶。离子液体的过饱和度促进了二维球晶的生长，并对红荧烯的沉积速率和总量进行了精细的控制。离子液体辅助真空气相沉积法制备的红荧烯的成核和生长模式与常规方法不同。(C)2014日本应用物理学会
The crystal growth and unique morphological changes of organic semiconductor rubrene, fabricated by ionic liquid (IL)-assisted vacuum vapor deposition, were investigated. The texture and structure of rubrene films strongly depended on the thickness of IL films on substrates, namely, three-dimensional dendrites in 3D-ILs, two-dimensional microfibrils in 2D-ILs, and two-dimensional spherulites in 0D-ILs. The growth of two-dimensional spherulites would be promoted by the supersaturation of ILs, minutely controlling the rate and total amount of rubrene deposition. The growth mechanisms of rubrene fabricated by IL-assisted vacuum vapor deposition were different from that of the conventional one in terms of the nucleation and growth modes. (C) 2014 The Japan Society of Applied Physics