Electric dipolar interaction assisted growth of single crystalline organic thin films  

作　　者：蔡金明 张余洋 胡昊 鲍丽宏 潘理达 唐卫 李果 杜世萱 沈健 高鸿钧 

机构地区：[1]Institute of Physics,Chinese Academy of Sciences [2]Materials Sciences and Technology Division,Oak Ridge National Laboratory,Oak Ridge [3]Materials Sciences and Technology Division,Oak Ridge National Laboratory,Oak Ridge,Tennessee 37831,USA

出　　处：《Chinese Physics B》2010年第6期448-452,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No.10774176);the National Basic Research Program of China (Grant No.2006CB806202)

摘　　要：We report on a forest-like-to-desert-like pattern evolution in the growth of an organic thin film observed by using an atomic force microscope. We use a modified diffusion limited aggregation model to simulate the growth process and are able to reproduce the experimental patterns. The energy of electric dipole interaction is calculated and determined to be the driving force for the pattern formation and evolution. Based on these results, single crystalline films are obtained by enhancing the electric dipole interaction while limiting effects of other growth parameters.We report on a forest-like-to-desert-like pattern evolution in the growth of an organic thin film observed by using an atomic force microscope. We use a modified diffusion limited aggregation model to simulate the growth process and are able to reproduce the experimental patterns. The energy of electric dipole interaction is calculated and determined to be the driving force for the pattern formation and evolution. Based on these results, single crystalline films are obtained by enhancing the electric dipole interaction while limiting effects of other growth parameters.

关 键 词：electric dipolar interaction organic thin films diffusion limited aggregation model 

分 类 号：TB383.2[一般工业技术—材料科学与工程]