세미나안내

[2015 03 18] 정기세미나 2nd

Photonic Crystal Structural Coloring with Assembled Particle Monolayers

MSE Graduate Students and Researchers

관리자 | 2015.03.16 09:14 | 조회 3133


Reception: MSE Graduate Students and Researchers

Reference: MSE Professors

Subject: The 2nd Seminar - Spring Semester, 2015


 Date: 2015. 03. 18(WED), 17:00 ~ 18:15

 Place: Science Building, Room.202 Multimedia Room

 Title: Photonic Crystal Structural Coloring with Assembled Particle Monolayers

 Speaker: Prof. Unyong Jeong(MS&E, POSTECH)

Host of a Seminar: Prof. Junwoo Son

Speaker Language: ENGLISH

 

Abstract:

Structural colors originate from purely physical structures, rather than being inherent colors. Scientists have been inspired to mimic the structures found in nature, the practical realization of these structures still presents a great challenge. We have recently introduced unidirectional rubbing of a dry particle powder on a rubbery surface as a quick, highly reproducible means to fabricate a single crystal monolayer assembly of particles over an unlimited area. This talk uses the particle-rubbing process to a novel practical fine-art painting, structural color painting (SCP). SCP is based on structural coloring with varying iridescence according to the crystal orientation, as controlled by the rubbing direction. This painting technique can be applied on curved surfaces, which enriches the objects to be painted and helps the painter mimic the structures found in nature. It also allows for quick fabrication of complicated particle-assembly patterns, which enables replication of paintings. This talk also deals with possible applications related with photonic crystals and lithography.

 

Department of Materials Science and Engineering



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