Direct self-assembly of organic micro-arrays with programmable multi-color patterns  

可编程式自组装生长多色有机微米阵列

作　　者：Qiuyi Zhang Qi Huang Jianping Li Xiaofei Yue Chenxu Sheng Husnain Jawad Zhiguo Zhou Ziyang Song Fengxian Xie Chunxiao Cong Zhi-Jun Qiu Laigui Hu Ran Liu 张秋仪;黄淇;李建平;岳晓飞;盛晨旭;Husnain Jawad;周治国;宋子洋;解凤贤;丛春晓;仇志军;胡来归;刘冉(Center of Micro Nano System,School of Information Science and Technology,Fudan University,Shanghai 200438,China;Institute for Electric Light Sources,School of Information Science and Technology,Fudan University,Shanghai 200438,China;College of Chemistry and Materials Science,Shanghai Frontiers Science Center of Biomimetic Catalysis,Shanghai Normal University,Shanghai 200234,China;Shanghai Key Lab of Chemical Assessment and Sustainability,School of Chemical Science and Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]Center of Micro Nano System,School of Information Science and Technology,Fudan University,Shanghai 200438,China [2]Institute for Electric Light Sources,School of Information Science and Technology,Fudan University,Shanghai 200438,China [3]College of Chemistry and Materials Science,Shanghai Frontiers Science Center of Biomimetic Catalysis,Shanghai Normal University,Shanghai 200234,China [4]Shanghai Key Lab of Chemical Assessment and Sustainability,School of Chemical Science and Engineering,Tongji University,Shanghai 200092,China

出　　处：《Science China Materials》2025年第2期441-447,共7页中国科学(材料科学)(英文版)

基　　金：supported by the National Natural Science Foundation of China (62074045, 62074040, 22309134);China Postdoctoral Science Foundation (2022M712402);Shanghai Rising-Star Program (23YF1449200)。

摘　　要：High-resolution organic arrays with diverse pixel types hold significant promise for various applications,such as full-color displays and photonic crystals.The direct growth of such arrays(e.g.,high-resolution multi-color patterns)cannot be achieved in a single step with conventional strategies.Here,we present a viable approach integrating a bottom-up solution strategy with phase-change materials(PCMs),specifically aggregation-induced emission(AIE)materials.Through intentional self-assembly,color-programmable organic micro-patterns featuring distinct phases or colors were created.Notably,manipulating the amount of involved substance for nucleation/crystallization was achieved by adjusting the sizes of pre-defined nucleation sites.This precise control resulted in varied phases and colors for each pixel.Thus,high-resolution organic micro-arrays with transfer-free multi-color pixels were directly achieved.These may open avenues for seamless,transfer-free growth of multifunctional micro-patterns using PCMs,holding immense potential for applications in high-resolution full-color imaging/displays,photonic crystals,information storage,and encryption,etc.具有不同像素类型的高分辨率有机阵列在各种领域中有着重要的应用前景,如全彩显示和光子晶体.通过传统工艺很难一步就制备出这类阵列(如高分辨率多色图案).在本工作中,我们提出了一种自下而上的溶液法,结合相变材料(特别是聚集诱导发光材料).通过自组装过程,直接制备出了具有不同相或颜色的可编程微米级有机图案.值得注意的是,通过调整事先预定义的成核位点尺寸,实现了对成核和结晶物质的量的控制.这种精确调控可导致每个像素呈现不同的相和颜色.因此,直接实现了无需转移的具有多种颜色像素的高分辨率有机微米阵列,这为利用相变材料进行无需转移的多功能微图案生长开辟了道路,在高分辨率全彩成像/显示、光子晶体、信息存储、加密等领域有着巨大的潜力.

关 键 词：PHASE-CHANGE aggregation-induced emission SELFASSEMBLY high-resolution multi-color patterns 

分 类 号：TG1[金属学及工艺—金属学]