The synergistic role of azeotropic solvent mixtures and atactic polystyrene on the morphology, crystallization and field effect mobility of thin film 6,13-bis(triisopropylsilylethynyl)-pentacene based semiconductors
The synergistic role of azeotropic solvent mixtures and atactic polystyrene on the morphology, crystallization and field effect mobility of thin film 6,13-bis(triisopropylsilylethynyl)-pentacene based semiconductors
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共沸溶剂混合物和无规聚苯乙烯对薄膜6,13-双(三异丙基甲硅烷基乙炔基)-并五苯基半导体的形貌、结晶和场效应迁移率的协同作用
DOI：
10.1007/s10854-018-9020-5
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Abdullah I
中科院分区：
文献类型：
--
作者：
Abdullah I
采用光学显微镜、原子力显微镜和紫外-可见光谱研究了苯甲醚/癸烷二元溶剂混合物以及随后加入低质量分数的aPS对6，13-二（三异丙基硅基乙炔基）并五苯（TIPS-pentacene）薄膜形貌的影响。我们表明，在96/4至85/15重量%的苯甲醚/癸烷的组成范围内，溶液保持共沸组成，二元混合物的沸点保持恒定在152 °C，并且溶剂组成在蒸发和干燥期间保持恒定。结果发现，除了高达20重量%的癸烷对微观尺度的晶体形态几乎没有影响，但对生长模式和梯田粗糙度有显着的影响。大晶体的形成解释在溶剂中的变化，增加癸烷含量，削弱溶质-溶剂的相互作用和促进有效的成核的有利的H-聚集体的TIPS-并五苯。类似地研究了对于滴铸薄膜，TIPS-并五苯-aPS比率高达20重量%的影响。研究发现，添加aPS对晶体的宏观性质如表面覆盖度、取向统一性和长程有序性都有显著影响。它还改变了纳米尺度上的表面形貌和层有序性。
The effect of anisole/decane binary solvent mixture and the subsequent addition of low wt% aPS on 6,13-bis(triisopropylsilylethynyl)-pentacene (TIPS-pentacene) thin film morphology is investigated by optical microscopy, AFM and UV–Vis measurements. We show that, over the composition range anisole/decane of 96/4 to 85/15 wt%, the solution maintains an azeotropic composition with the boiling point of the binary mixture remaining constant at 152 °C, and the solvent composition remaining constant during evaporation and drying. It was found that addition of up to 20 wt% decane has little impact on micro-scale crystal morphology but has a significant influence on the growth mode and terrace roughness. The formation of large crystals is explained in terms of the change in solvent, increase in decane content, weakening the solute–solvent interactions and promoting efficient nucleation of the favoured H-aggregates of TIPS-pentacene. The effect of the TIPS-pentacene—aPS ratio up to 20 wt% for drop-cast thin film was similarly investigated. It is found that addition of aPS has a significant effect on both macroscopic crystal properties such as surface coverage, unity of orientation and long range order. It also changes the surface morphology and layer ordering on the nano-scale.
影响因子：
10.8
作者：
Takazawa, K;Kitahama, Y;Kido, G
通讯作者：
Kido, G
影响因子：
3.9
作者：
Pitsalidis, C.;Kalfagiannis, N.;Logothetidis, S.
通讯作者：
Logothetidis, S.