Growth of highly ordered colloidal photonic crystals using a modeling approach

Virginia Yong, Larry K. Aagesen, Robert P. H. Chang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Colloidal photonic crystals were grown using a vertical deposition method. The effect of colloidal concentration and deposition rate on crystalline quality and domain size was studied by means of response surface design. The crystalline quality was assessed using the optical reflectance. The results show that a strong negative correlation exists between the reflectance and the full width at half-maximum (FWHM), as illustrated by the close optimal region between maximizing reflectance and minimizing FWHM. For reflectance and FWHM, the quadratic effect of colloidal concentration is highly significant. For domain size, the colloidal concentration-lifting speed interaction effect was found to be significant. The observed colloidal concentration-lifting speed interaction effect explains the controversy that a low deposition rate is desirable at low colloidal concentrations, whereas a high deposition rate is favorable at high colloidal concentrations. Predictive models relating the important factors to the reflectance, FWHM, and domain size are proposed in the paper. The resulting optimal recipe shows a well-ordered structure with good optical reflectance, consistent with the prediction from modeling.

Original languageEnglish
Article number435204
JournalNanotechnology
Volume19
Issue number43
DOIs
Publication statusPublished - Oct 22 2008

Fingerprint

Photonic crystals
Full width at half maximum
Deposition rates
Crystalline materials

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Growth of highly ordered colloidal photonic crystals using a modeling approach. / Yong, Virginia; Aagesen, Larry K.; Chang, Robert P. H.

In: Nanotechnology, Vol. 19, No. 43, 435204, 22.10.2008.

Research output: Contribution to journalArticle

@article{0659737ecd6f471b965e8cc800b065bb,
title = "Growth of highly ordered colloidal photonic crystals using a modeling approach",
abstract = "Colloidal photonic crystals were grown using a vertical deposition method. The effect of colloidal concentration and deposition rate on crystalline quality and domain size was studied by means of response surface design. The crystalline quality was assessed using the optical reflectance. The results show that a strong negative correlation exists between the reflectance and the full width at half-maximum (FWHM), as illustrated by the close optimal region between maximizing reflectance and minimizing FWHM. For reflectance and FWHM, the quadratic effect of colloidal concentration is highly significant. For domain size, the colloidal concentration-lifting speed interaction effect was found to be significant. The observed colloidal concentration-lifting speed interaction effect explains the controversy that a low deposition rate is desirable at low colloidal concentrations, whereas a high deposition rate is favorable at high colloidal concentrations. Predictive models relating the important factors to the reflectance, FWHM, and domain size are proposed in the paper. The resulting optimal recipe shows a well-ordered structure with good optical reflectance, consistent with the prediction from modeling.",
author = "Virginia Yong and Aagesen, {Larry K.} and Chang, {Robert P. H.}",
year = "2008",
month = "10",
day = "22",
doi = "10.1088/0957-4484/19/43/435204",
language = "English",
volume = "19",
journal = "Nanotechnology",
issn = "0957-4484",
publisher = "IOP Publishing Ltd.",
number = "43",

}

TY - JOUR

T1 - Growth of highly ordered colloidal photonic crystals using a modeling approach

AU - Yong, Virginia

AU - Aagesen, Larry K.

AU - Chang, Robert P. H.

PY - 2008/10/22

Y1 - 2008/10/22

N2 - Colloidal photonic crystals were grown using a vertical deposition method. The effect of colloidal concentration and deposition rate on crystalline quality and domain size was studied by means of response surface design. The crystalline quality was assessed using the optical reflectance. The results show that a strong negative correlation exists between the reflectance and the full width at half-maximum (FWHM), as illustrated by the close optimal region between maximizing reflectance and minimizing FWHM. For reflectance and FWHM, the quadratic effect of colloidal concentration is highly significant. For domain size, the colloidal concentration-lifting speed interaction effect was found to be significant. The observed colloidal concentration-lifting speed interaction effect explains the controversy that a low deposition rate is desirable at low colloidal concentrations, whereas a high deposition rate is favorable at high colloidal concentrations. Predictive models relating the important factors to the reflectance, FWHM, and domain size are proposed in the paper. The resulting optimal recipe shows a well-ordered structure with good optical reflectance, consistent with the prediction from modeling.

AB - Colloidal photonic crystals were grown using a vertical deposition method. The effect of colloidal concentration and deposition rate on crystalline quality and domain size was studied by means of response surface design. The crystalline quality was assessed using the optical reflectance. The results show that a strong negative correlation exists between the reflectance and the full width at half-maximum (FWHM), as illustrated by the close optimal region between maximizing reflectance and minimizing FWHM. For reflectance and FWHM, the quadratic effect of colloidal concentration is highly significant. For domain size, the colloidal concentration-lifting speed interaction effect was found to be significant. The observed colloidal concentration-lifting speed interaction effect explains the controversy that a low deposition rate is desirable at low colloidal concentrations, whereas a high deposition rate is favorable at high colloidal concentrations. Predictive models relating the important factors to the reflectance, FWHM, and domain size are proposed in the paper. The resulting optimal recipe shows a well-ordered structure with good optical reflectance, consistent with the prediction from modeling.

UR - http://www.scopus.com/inward/record.url?scp=56349085240&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=56349085240&partnerID=8YFLogxK

U2 - 10.1088/0957-4484/19/43/435204

DO - 10.1088/0957-4484/19/43/435204

M3 - Article

VL - 19

JO - Nanotechnology

JF - Nanotechnology

SN - 0957-4484

IS - 43

M1 - 435204

ER -