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Title: Germanium FCC structure from a colloidal crystal template

Abstract

Here, the authors show a method to fabricate a macroporous structure in which the pores, essentially identical, arrange regularly in a face-centered cubic (FCC) lattice. The result is a network of air spheres in a germanium medium. This structure presents the highest dielectric contrast ({epsilon}{sub Ge}/{epsilon}{sub air} = 16) ever achieved in the optical regime in such periodic structures, which could result in important applications in photonics. The authors employ solid silica colloidal crystals (opals) as templates within which a cyclic germanium growth process is carried out. Thus, the three-dimensional periodicity of the host is inherited by the guest. Afterward, the silica is removed and a germanium opal replica is obtained.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Univ. Politecnica de Valencia (ES)
OSTI Identifier:
20080273
Resource Type:
Journal Article
Journal Name:
Langmuir
Additional Journal Information:
Journal Volume: 16; Journal Issue: 10; Other Information: PBD: 16 May 2000; Journal ID: ISSN 0743-7463
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; GERMANIUM; FCC LATTICES; COLLOIDS; DIELECTRIC MATERIALS; MEMBRANES

Citation Formats

Miguez, H., Meseguer, F., Lopez, C., Holgado, M., Andreasen, G., Mifsud, A., and Fornes, V. Germanium FCC structure from a colloidal crystal template. United States: N. p., 2000. Web. doi:10.1021/la991412s.
Miguez, H., Meseguer, F., Lopez, C., Holgado, M., Andreasen, G., Mifsud, A., & Fornes, V. Germanium FCC structure from a colloidal crystal template. United States. doi:10.1021/la991412s.
Miguez, H., Meseguer, F., Lopez, C., Holgado, M., Andreasen, G., Mifsud, A., and Fornes, V. Tue . "Germanium FCC structure from a colloidal crystal template". United States. doi:10.1021/la991412s.
@article{osti_20080273,
title = {Germanium FCC structure from a colloidal crystal template},
author = {Miguez, H. and Meseguer, F. and Lopez, C. and Holgado, M. and Andreasen, G. and Mifsud, A. and Fornes, V.},
abstractNote = {Here, the authors show a method to fabricate a macroporous structure in which the pores, essentially identical, arrange regularly in a face-centered cubic (FCC) lattice. The result is a network of air spheres in a germanium medium. This structure presents the highest dielectric contrast ({epsilon}{sub Ge}/{epsilon}{sub air} = 16) ever achieved in the optical regime in such periodic structures, which could result in important applications in photonics. The authors employ solid silica colloidal crystals (opals) as templates within which a cyclic germanium growth process is carried out. Thus, the three-dimensional periodicity of the host is inherited by the guest. Afterward, the silica is removed and a germanium opal replica is obtained.},
doi = {10.1021/la991412s},
journal = {Langmuir},
issn = {0743-7463},
number = 10,
volume = 16,
place = {United States},
year = {2000},
month = {5}
}