Template-Directed Directionally Solidified 3D Mesostructured AgCl-KCl Eutectic Photonic Crystals

Jinwoo Kim; Larry K Aagesen; Jun Hee Choi; Jaewon Choi; Ha Seong Kim; Jinyun Liu; Chae-Ryong Cho; Jin Gu Kang; Ali Ramazani; Katsuyo Thornton; Paul V Braun

doi:10.1002/adma.201502265

Template-Directed Directionally Solidified 3D Mesostructured AgCl-KCl Eutectic Photonic Crystals

Adv Mater. 2015 Aug 19;27(31):4551-9. doi: 10.1002/adma.201502265. Epub 2015 Jul 14.

Authors

Jinwoo Kim¹, Larry K Aagesen², Jun Hee Choi^{1

3}, Jaewon Choi¹, Ha Seong Kim¹, Jinyun Liu¹, Chae-Ryong Cho^{1

4}, Jin Gu Kang¹, Ali Ramazani², Katsuyo Thornton², Paul V Braun¹

Affiliations

¹ Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
² Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109, USA.
³ Samsung Advanced Institute of Technology, Samsung Electronics, Suwon, 443-803, South Korea.
⁴ Department of Nanoenergy Engineering, Pusan National University, Busan, 609-735, South Korea.

PMID: 26177830
DOI: 10.1002/adma.201502265

Abstract

3D mesostructured AgCl-KCl photonic crystals emerge from colloidal templating of eutectic solidification. Solvent removal of the KCl phase results in a mesostructured AgCl inverse opal. The 3D-template-induced confinement leads to the emergence of a complex microstructure. The 3D mesostructured eutectic photonic crystals have a large stop band ranging from the near-infrared to the visible tuned by the processing.

Keywords: colloidal crystals; directional solidification; metamaterials; self-assembly.