화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2016년 봄 (05/02 ~ 05/04, 여수 엑스포 컨벤션)
권호 20권 1호
발표분야 고분자_포스터
제목 Creation of Nano-Particle-Clusters Array using Sublimable Liquid Crystal
초록 Here, we have demonstrated, for the first time, that NP clusters array in large area for F-SiO2 (d: 100nm) and QD, CdSe (d: 10nm) by using the transforming TFCDs as a template for directed self-clustering of NPs during thermal annealing. This process is mainly governed by the topological effect of the dimple like defects of TFCDs to confine the NPs with macroscopic array and the sublimation and reconstruction phenomenon to effectively form spherical NP clusters. Thus, we have confirmed the formation of NP clusters array using scanning electron microscopy (SEM) and fluorescence microscopy (FM) as well as investigated the mechanism using SEM and depolarized reflective light microscopy (DRLM) as function of thermal annealing times. This approach provides a simple and novel way to control NPs clustering and its macroscopic array in large area. Furthermore, this system may open a new clusters array system for various NP types to generate interesting opto-electric properties.  
저자 김대석1, Apiradee Honglawan2, 김경남3, 김문호4, 정소희3, 윤동기1
소속 1KAIST, 2Univ. of Pennsylvania, 3한국기계(연), 4부경대
키워드 nanoparticle; self-assembly; liquid crystal; sublimation
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