Zaglmayr H, Sun L D, Weidlinger G, Al-Baqi Sh M Abd, Sitter H, Zeppenfeld P
Institute of Experimental Physics, Johannes Kepler University Linz, Altenbergerstr. 69, A-4040 Linz, Austria.
Synth Met. 2011 Feb;161(3-4):271-274. doi: 10.1016/j.synthmet.2010.11.033.
We have studied the morphology and the spatially resolved photoluminescence of rubrene thin films at the early stage of crystallization. The initial growth proceeds via the formation of a wetting layer and the nucleation of islands with an amorphous structure. Crystallization starts when the amorphous islands coalesce and needle like crystalline fibers are formed in the gap between islands. The crystalline fibers then grow on top and in between the original amorphous islands leading to an "open network" of islands. The latter acts as the basis for the growth of semi-crystalline spherulites.
我们研究了红荧烯薄膜在结晶初期的形态和空间分辨光致发光。初始生长通过形成润湿层和具有非晶结构的岛状核来进行。当非晶岛合并且在岛之间的间隙中形成针状晶体纤维时，结晶开始。然后晶体纤维在原始非晶岛的顶部和之间生长，形成岛状的“开放网络”。后者作为半结晶球晶生长的基础。
