人工晶体学报2026，Vol.55Issue(1)：37-45,9.DOI:10.16553/j.cnki.issn1000-985x.2025.0165
TCTA薄膜多晶型结构与晶体生长动力学
Polymorphic Structures and Crystal Growth Kinetics in TCTA Thin Films
摘要
Abstract
4,4′,4″-tri(N-carbazolyl)triphenylamine(TCTA)is a widely used organic semiconductor material in optoelectronic devices,whose crystallization behavior significantly influences device photoelectric performance.However,a comprehensive understanding of its polymorphic structures and crystal growth kinetics remains lacking.In this study,the formation conditions of polymorphs and their growth kinetics in TCTA thin films were systematically investigated using polarized optical microscopy(POM)and atomic force microscopy(AFM).The results reveal the coexistence of two polymorphs with markedly different melting points.Notably,only Form Ⅰ with a lower melting point is observed when the film thickness is below 80 nm.Crystal growth kinetic analysis demonstrates that the low-melting-point polymorph exhibits faster growth rates and lower activation energy.This study deepens the understanding of crystallization behavior in TCTA thin films and provides valuable insights for tailoring their microstructure and homogeneity to improve the device performance.关键词
TCTA/薄膜/多晶型/晶体生长动力学/膜厚/活化能Key words
TCTA/thin film/polymorphism/crystal growth kinetics/film thickness/activation energy分类
数理科学引用本文复制引用
姚志远,阳禹辉,左彪..TCTA薄膜多晶型结构与晶体生长动力学[J].人工晶体学报,2026,55(1):37-45,9.基金项目
国家自然科学基金(52103234) （52103234）
浙江省自然科学基金(LY23E030009) （LY23E030009）
中央高校基本科研业务费专项资金(226-2025-00032) （226-2025-00032）
浙江大学高分子合成与功能构造教育部重点实验(2024MSF03) （2024MSF03）
