Electric-field tuning of the Bragg peak in large-pore TiO2 inverse shell opals

E. Graugnard; J. S. King; S. Jain; C. J. Summers; Y. Zhang-Williams; I. C. Khoo

doi:10.1103/PhysRevB.72.233105

Electric-field tuning of the Bragg peak in large-pore TiO2 inverse shell opals

E. Graugnard, J. S. King, S. Jain, C. J. Summers, Y. Zhang-Williams, I. C. Khoo

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

83 Scopus citations

Abstract

Inverse opals with large connection pores were fabricated by infiltrating sintered polystyrene opal templates using low-temperature atomic layer deposition of TiO2 and subsequently dissolving the polystyrene in toluene. The dielectric lattice, consisting of overlapping air spheres in a TiO2 matrix, was then infiltrated with nematic liquid crystal, with some samples having received a prior hydrophobic surface treatment. The specular reflectance is shown to depend not only on electric-field amplitude, but also on film structure. In the hydrophobic-treated sample, a 20nm shift of the Bragg peak was observed for an applied electric field of 50kV/cm.

Original language	English (US)
Article number	233105
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	72
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevB.72.233105
State	Published - Dec 15 2005

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.72.233105

Cite this

@article{5918fc905e984cdc955abdff3372877a,

title = "Electric-field tuning of the Bragg peak in large-pore TiO2 inverse shell opals",

abstract = "Inverse opals with large connection pores were fabricated by infiltrating sintered polystyrene opal templates using low-temperature atomic layer deposition of TiO2 and subsequently dissolving the polystyrene in toluene. The dielectric lattice, consisting of overlapping air spheres in a TiO2 matrix, was then infiltrated with nematic liquid crystal, with some samples having received a prior hydrophobic surface treatment. The specular reflectance is shown to depend not only on electric-field amplitude, but also on film structure. In the hydrophobic-treated sample, a 20nm shift of the Bragg peak was observed for an applied electric field of 50kV/cm.",

author = "E. Graugnard and King, {J. S.} and S. Jain and Summers, {C. J.} and Y. Zhang-Williams and Khoo, {I. C.}",

year = "2005",

month = dec,

day = "15",

doi = "10.1103/PhysRevB.72.233105",

language = "English (US)",

volume = "72",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "23",

}

TY - JOUR

T1 - Electric-field tuning of the Bragg peak in large-pore TiO2 inverse shell opals

AU - Graugnard, E.

AU - King, J. S.

AU - Jain, S.

AU - Summers, C. J.

AU - Zhang-Williams, Y.

AU - Khoo, I. C.

PY - 2005/12/15

Y1 - 2005/12/15

N2 - Inverse opals with large connection pores were fabricated by infiltrating sintered polystyrene opal templates using low-temperature atomic layer deposition of TiO2 and subsequently dissolving the polystyrene in toluene. The dielectric lattice, consisting of overlapping air spheres in a TiO2 matrix, was then infiltrated with nematic liquid crystal, with some samples having received a prior hydrophobic surface treatment. The specular reflectance is shown to depend not only on electric-field amplitude, but also on film structure. In the hydrophobic-treated sample, a 20nm shift of the Bragg peak was observed for an applied electric field of 50kV/cm.

AB - Inverse opals with large connection pores were fabricated by infiltrating sintered polystyrene opal templates using low-temperature atomic layer deposition of TiO2 and subsequently dissolving the polystyrene in toluene. The dielectric lattice, consisting of overlapping air spheres in a TiO2 matrix, was then infiltrated with nematic liquid crystal, with some samples having received a prior hydrophobic surface treatment. The specular reflectance is shown to depend not only on electric-field amplitude, but also on film structure. In the hydrophobic-treated sample, a 20nm shift of the Bragg peak was observed for an applied electric field of 50kV/cm.

UR - http://www.scopus.com/inward/record.url?scp=29744434706&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=29744434706&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.72.233105

DO - 10.1103/PhysRevB.72.233105

M3 - Article

AN - SCOPUS:29744434706

SN - 1098-0121

VL - 72

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 23

M1 - 233105

ER -

Electric-field tuning of the Bragg peak in large-pore TiO2 inverse shell opals

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this