119th General Meeting of the KCS

Type Poster Presentation
Area 고분자화학
Room No. 포스터발표장
Time 4월 21일 (금요일) 13:00~14:30
Code POLY.P-45
Subject Enhanced Photonic Property of Quasi-amorphous Photonic Solution by Introducing Imaginary Part of Refractive Index
Authors 서춘희, 강영종1,*
한양대학교 화학과, Korea
1한양대학교 자연과학대학 화학과, Korea
Abstract General photonic crystals are made up materials that have different real part of refractive index and until now, imaginary part of refractive index in photonic crystals is not considered. So, we investigated how absorbance affect to reflectance of photonic crystals and use polydopamine (PDA) nanoparticles as absorbing material. When PDA put into SiO2 quasi-amorphous photonic solution (QAPS), PDA/SiO2 QAPS shows high contrast photonic color and enhanced reflectance. Also, when dye trapped polystyrene (PS) nanoparticles are added in QAPS, novel phenomena occurred. Only when photonic bandgap region matched with absorbance band of dye, reflectance of QAPS enhanced. Otherwise reflectance intensity not changed. This result show interplay between absorption and reflectance and considerably encourage in field of optics using photonic crystals.
E-mail sspringh90@gmail.com