State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, and Graduate School of Chinese Academy of Sciences, Changchun 130022, People's Republic of China.
J Phys Chem B. 2010 Dec 16;114(49):16408-13. doi: 10.1021/jp1058066. Epub 2010 Nov 18.
The growth of ultrathin films of 2,5-bis(4-1,1':4',1''-terphenyl)-thiophene (3PT) and weak epitaxy growth (WEG) behavior of phthalocyanines (H(2)Pc and ZnPc) on 3PT ultrathin films were investigated by atomic force microscopy, X-ray diffraction (XRD), and select area electron diffraction (SAED). Domain size of the monolayer films can reach 10 μm at the substrate temperature of 190 °C. The second layer films begin to show Volmer-Weber growth mode. This growth mode transformed without a concomitant phase transition. The XRD and SAED measurements indicate the monolayer and double-layer films of 3PT have identical in-plane and out-of-plane structure. The epitaxial ZnPc films have a similar orientation or intertexture shape utilizing 3PT monolayer and double-layer films as the inducing layer. By comparison with utilizing para-sexiphenyl (p-6P) as the inducing layer, the morphology with clear borderline of epitaxial films with different orientations on joint of neighboring 3PT monolayer domains disclosed that the 3PT monolayer films have characteristics of crystal. Meanwhile the distinguishing effects of inducing layer phase state on morphology of epitaxial films were shown, respectively.
采用原子力显微镜、X 射线衍射（XRD）和选区电子衍射（SAED）研究了 2,5-双（4-1,1':4',1''-三联苯）噻吩（3PT）的超薄薄膜的生长和酞菁（H(2)Pc 和 ZnPc）在 3PT 超薄薄膜上的弱外延生长（WEG）行为。在 190°C 的衬底温度下，单层膜的畴尺寸可达 10 μm。第二层膜开始呈现出弗尔默-韦伯生长模式。这种生长模式的转变没有伴随相应的相变。XRD 和 SAED 测量表明，单层和双层 3PT 薄膜具有相同的面内和面外结构。利用 3PT 单层和双层薄膜作为诱导层，外延 ZnPc 薄膜具有相似的取向或织构形状。与利用对六联苯（p-6P）作为诱导层相比，在相邻 3PT 单层畴的交界处具有不同取向的外延膜清晰边界的形貌表明，3PT 单层薄膜具有晶体的特征。同时，还分别显示了诱导层相态对外延膜形貌的区别影响。
