Binary Colloidal Crystal Films Grown by Vertical Evaporation of Silica Nanoparticle Suspensions

Jennifer L. Russell; Grace H. Noel; Joseph M. Warren; Ngoc Lan L. Tran; Thomas E. Mallouk

doi:10.1021/acs.langmuir.7b02553

Binary Colloidal Crystal Films Grown by Vertical Evaporation of Silica Nanoparticle Suspensions

Jennifer L. Russell, Grace H. Noel, Joseph M. Warren, Ngoc Lan L. Tran, Thomas E. Mallouk

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

24 Scopus citations

Abstract

Despite intensive research efforts in the synthesis of binary colloidal crystals, the production of well ordered binary colloidal crystal films over large areas continues to be synthetically challenging. In this paper, we investigate the phase behavior of binary mixtures of l-arginine-stabilized 36 and 22 nm silica nanoparticles deposited as centimeter-scale thin films onto a vertical substrate via evaporative assembly. By adjusting the temperature and relative colloid composition under high humidity conditions, we controlled the order of the resultant colloidal crystal films. The domain size of the AB₂ binary crystalline phase increased with an excess of small (B) particles and a very slow evaporation rate below 45 °C, with the best results obtained at 30° and 35 °C.

Original language	English (US)
Pages (from-to)	10366-10373
Number of pages	8
Journal	Langmuir
Volume	33
Issue number	39
DOIs	https://doi.org/10.1021/acs.langmuir.7b02553
State	Published - Oct 3 2017

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/acs.langmuir.7b02553

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title = "Binary Colloidal Crystal Films Grown by Vertical Evaporation of Silica Nanoparticle Suspensions",

abstract = "Despite intensive research efforts in the synthesis of binary colloidal crystals, the production of well ordered binary colloidal crystal films over large areas continues to be synthetically challenging. In this paper, we investigate the phase behavior of binary mixtures of l-arginine-stabilized 36 and 22 nm silica nanoparticles deposited as centimeter-scale thin films onto a vertical substrate via evaporative assembly. By adjusting the temperature and relative colloid composition under high humidity conditions, we controlled the order of the resultant colloidal crystal films. The domain size of the AB2 binary crystalline phase increased with an excess of small (B) particles and a very slow evaporation rate below 45 °C, with the best results obtained at 30° and 35 °C.",

author = "Russell, {Jennifer L.} and Noel, {Grace H.} and Warren, {Joseph M.} and Tran, {Ngoc Lan L.} and Mallouk, {Thomas E.}",

note = "Funding Information: This work was supported by the National Science Foundation under MRSEC grant number DMR-1420620. We thank Darrell Velegol and Rajarshi Guha (Pennsylvania State University), Christopher Murray (University of Pennsylvania), and Michael Howard and Athanassios Panagiotopoulos (Princeton University) for valuable discussions. We also acknowledge Hiu Yan Cheng (Pennsylvania State University) for assistance with preparation of Figure 3. Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

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doi = "10.1021/acs.langmuir.7b02553",

language = "English (US)",

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AU - Russell, Jennifer L.

AU - Noel, Grace H.

AU - Warren, Joseph M.

AU - Tran, Ngoc Lan L.

AU - Mallouk, Thomas E.

N1 - Funding Information: This work was supported by the National Science Foundation under MRSEC grant number DMR-1420620. We thank Darrell Velegol and Rajarshi Guha (Pennsylvania State University), Christopher Murray (University of Pennsylvania), and Michael Howard and Athanassios Panagiotopoulos (Princeton University) for valuable discussions. We also acknowledge Hiu Yan Cheng (Pennsylvania State University) for assistance with preparation of Figure 3. Publisher Copyright: © 2017 American Chemical Society.

PY - 2017/10/3

Y1 - 2017/10/3

N2 - Despite intensive research efforts in the synthesis of binary colloidal crystals, the production of well ordered binary colloidal crystal films over large areas continues to be synthetically challenging. In this paper, we investigate the phase behavior of binary mixtures of l-arginine-stabilized 36 and 22 nm silica nanoparticles deposited as centimeter-scale thin films onto a vertical substrate via evaporative assembly. By adjusting the temperature and relative colloid composition under high humidity conditions, we controlled the order of the resultant colloidal crystal films. The domain size of the AB2 binary crystalline phase increased with an excess of small (B) particles and a very slow evaporation rate below 45 °C, with the best results obtained at 30° and 35 °C.

AB - Despite intensive research efforts in the synthesis of binary colloidal crystals, the production of well ordered binary colloidal crystal films over large areas continues to be synthetically challenging. In this paper, we investigate the phase behavior of binary mixtures of l-arginine-stabilized 36 and 22 nm silica nanoparticles deposited as centimeter-scale thin films onto a vertical substrate via evaporative assembly. By adjusting the temperature and relative colloid composition under high humidity conditions, we controlled the order of the resultant colloidal crystal films. The domain size of the AB2 binary crystalline phase increased with an excess of small (B) particles and a very slow evaporation rate below 45 °C, with the best results obtained at 30° and 35 °C.

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Binary Colloidal Crystal Films Grown by Vertical Evaporation of Silica Nanoparticle Suspensions

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