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Morphology, Structure, and Dynamics of Pentacene Thin Films and Their Nanocomposites with [C2 C1 im][NTf2 ] and [C2 C1 im][OTF] Ionic Liquids.
ChemPhysChem ( IF 2.3 ) Pub Date : 2020-07-14 , DOI: 10.1002/cphc.202000431 Ricardo M Campos 1 , Alexandre C P M Alves 1 , Marco A L Lima 1 , Artur F M Farinha 1 , João P S Cardoso 1 , Adélio Mendes 2 , José C S Costa 1, 2 , Luís M N B F Santos 1
ChemPhysChem ( IF 2.3 ) Pub Date : 2020-07-14 , DOI: 10.1002/cphc.202000431 Ricardo M Campos 1 , Alexandre C P M Alves 1 , Marco A L Lima 1 , Artur F M Farinha 1 , João P S Cardoso 1 , Adélio Mendes 2 , José C S Costa 1, 2 , Luís M N B F Santos 1
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In this study, a homogeneous thin film growth of pentacene onto indium tin oxide (ITO) coated glass surfaces is explored using a high‐resolution and reproducible vapor deposition methodology. Moreover, vacuum thermal evaporation of ionic liquids (ILs) ([C2C1im][NTf2] and [C2C1im][OTF]) onto ITO, gold/palladium (AuPd) and pentacene surfaces were performed. A greater wettability behavior of ILs is observed for surfaces containing AuPd. Sequential and simultaneous depositions of ILs and pentacene were explored. Simultaneous depositions lead to the formation of nanocomposites films, consisting of IL micro‐ and nanodroplets covered by pentacene layers. Plasma surface treatment was used to induce the ILs droplets coalescence and explore the dynamics and phase separation of the nanocomposites. The [C2C1im][OTF] droplets were found to be completely covered with pentacene, which suggests a great affinity between cation‐anion pairs and the aromatic moiety. Pentacene films and their nanocomposites with ILs exhibit a typical optical band gap of Egap=1.77 eV, indicating that the nanocomposite phase domains are large enough to behavior as the bulk.
中文翻译：
[C2 C1 im] [NTf2]和[C2 C1 im] [OTF]离子液体的并五苯薄膜及其纳米复合材料的形貌，结构和动力学。
在这项研究中，使用高分辨率和可重现的气相沉积方法研究了并五苯在铟锡氧化物（ITO）涂层玻璃表面上的均匀薄膜生长。此外，离子液体（IL）（[C 2 C 1 im] [NTf 2 ]和[C 2 C 1im] [OTF]）在ITO上，进行了金/钯（AuPd）和并五苯的表面处理。对于含有AuPd的表面，IL的润湿性更好。研究了IL和并五苯的顺序和同时沉积。同时沉积导致形成纳米复合材料薄膜，该薄膜由并五苯层覆盖的IL微液滴和纳米液滴组成。等离子体表面处理用于诱导ILs小滴聚结，并探索纳米复合材料的动力学和相分离。发现[C 2 C 1 im] [OTF]液滴完全被并五苯覆盖，这表明阳离子-阴离子对与芳族部分之间具有很大的亲和力。并五苯薄膜及其具有IL的纳米复合材料表现出E的典型光学带隙间隙＝ 1.77eV，表明纳米复合相域足够大以至于表现为整体。
更新日期：2020-07-14
中文翻译：
[C2 C1 im] [NTf2]和[C2 C1 im] [OTF]离子液体的并五苯薄膜及其纳米复合材料的形貌，结构和动力学。
在这项研究中，使用高分辨率和可重现的气相沉积方法研究了并五苯在铟锡氧化物（ITO）涂层玻璃表面上的均匀薄膜生长。此外，离子液体（IL）（[C 2 C 1 im] [NTf 2 ]和[C 2 C 1im] [OTF]）在ITO上，进行了金/钯（AuPd）和并五苯的表面处理。对于含有AuPd的表面，IL的润湿性更好。研究了IL和并五苯的顺序和同时沉积。同时沉积导致形成纳米复合材料薄膜，该薄膜由并五苯层覆盖的IL微液滴和纳米液滴组成。等离子体表面处理用于诱导ILs小滴聚结，并探索纳米复合材料的动力学和相分离。发现[C 2 C 1 im] [OTF]液滴完全被并五苯覆盖，这表明阳离子-阴离子对与芳族部分之间具有很大的亲和力。并五苯薄膜及其具有IL的纳米复合材料表现出E的典型光学带隙间隙＝ 1.77eV，表明纳米复合相域足够大以至于表现为整体。
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