Electrically Tunable Soft-Solid Block Copolymer Structural Color

Tae Joon Park, Sun Kak Hwang, Sungmin Park, Sung Hwan Cho, Tae Hyun Park, Beomjin Jeong, Han Sol Kang, Du Yeol Ryu, June Huh, Edwin L. Thomas, Cheolmin Park

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

One-dimensional photonic crystals based on the periodic stacking of two different dielectric layers have been widely studied, but the fabrication of mechanically flexible polymer structural color (SC) films, with electro-active color switching, remains challenging. Here, we demonstrate free-standing electric field tunable ionic liquid (IL) swollen block copolymer (BCP) films. Placement of a polymer/ionic liquid film-reservoir adjacent to a self-assembled poly(styrene-block-quaternized 2-vinylpyridine) (PS-b-QP2VP) copolymer SC film allowed the development of red (R), green (G), and blue (B) full-color SC block copolymer films by swelling of the QP2VP domains by the ionic liquid associated with water molecules. The IL-polymer/BCP SC film is mechanically flexible with excellent color stability over several days at ambient conditions. The selective swelling of the QP2VP domains could be controlled by both the ratio of the IL to a polymer in the gel-like IL reservoir layer and by an applied voltage in the range of -3 to +6 V using a metal/IL reservoir/SC film/IL reservoir/metal capacitor type device.

Original languageEnglish
Pages (from-to)12158-12167
Number of pages10
JournalACS Nano
Volume9
Issue number12
DOIs
Publication statusPublished - 2015 Oct 27

Fingerprint

Ionic Liquids
block copolymers
Ionic liquids
Block copolymers
Color films
Color
color
liquids
Polymers
polymers
swelling
Swelling
Metals
Styrene
Liquid films
Photonic crystals
metals
polystyrene
copolymers
capacitors

Keywords

  • block copolymers
  • electrically switchable structural color
  • flexible photonic crystals
  • low operation voltage
  • soft-solid structural colored film

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Park, T. J., Hwang, S. K., Park, S., Cho, S. H., Park, T. H., Jeong, B., ... Park, C. (2015). Electrically Tunable Soft-Solid Block Copolymer Structural Color. ACS Nano, 9(12), 12158-12167. https://doi.org/10.1021/acsnano.5b05234

Electrically Tunable Soft-Solid Block Copolymer Structural Color. / Park, Tae Joon; Hwang, Sun Kak; Park, Sungmin; Cho, Sung Hwan; Park, Tae Hyun; Jeong, Beomjin; Kang, Han Sol; Ryu, Du Yeol; Huh, June; Thomas, Edwin L.; Park, Cheolmin.

In: ACS Nano, Vol. 9, No. 12, 27.10.2015, p. 12158-12167.

Research output: Contribution to journalArticle

Park, TJ, Hwang, SK, Park, S, Cho, SH, Park, TH, Jeong, B, Kang, HS, Ryu, DY, Huh, J, Thomas, EL & Park, C 2015, 'Electrically Tunable Soft-Solid Block Copolymer Structural Color', ACS Nano, vol. 9, no. 12, pp. 12158-12167. https://doi.org/10.1021/acsnano.5b05234
Park TJ, Hwang SK, Park S, Cho SH, Park TH, Jeong B et al. Electrically Tunable Soft-Solid Block Copolymer Structural Color. ACS Nano. 2015 Oct 27;9(12):12158-12167. https://doi.org/10.1021/acsnano.5b05234
Park, Tae Joon ; Hwang, Sun Kak ; Park, Sungmin ; Cho, Sung Hwan ; Park, Tae Hyun ; Jeong, Beomjin ; Kang, Han Sol ; Ryu, Du Yeol ; Huh, June ; Thomas, Edwin L. ; Park, Cheolmin. / Electrically Tunable Soft-Solid Block Copolymer Structural Color. In: ACS Nano. 2015 ; Vol. 9, No. 12. pp. 12158-12167.
@article{02adda6a3aab4aecb4692b0423ef2d9d,
title = "Electrically Tunable Soft-Solid Block Copolymer Structural Color",
abstract = "One-dimensional photonic crystals based on the periodic stacking of two different dielectric layers have been widely studied, but the fabrication of mechanically flexible polymer structural color (SC) films, with electro-active color switching, remains challenging. Here, we demonstrate free-standing electric field tunable ionic liquid (IL) swollen block copolymer (BCP) films. Placement of a polymer/ionic liquid film-reservoir adjacent to a self-assembled poly(styrene-block-quaternized 2-vinylpyridine) (PS-b-QP2VP) copolymer SC film allowed the development of red (R), green (G), and blue (B) full-color SC block copolymer films by swelling of the QP2VP domains by the ionic liquid associated with water molecules. The IL-polymer/BCP SC film is mechanically flexible with excellent color stability over several days at ambient conditions. The selective swelling of the QP2VP domains could be controlled by both the ratio of the IL to a polymer in the gel-like IL reservoir layer and by an applied voltage in the range of -3 to +6 V using a metal/IL reservoir/SC film/IL reservoir/metal capacitor type device.",
keywords = "block copolymers, electrically switchable structural color, flexible photonic crystals, low operation voltage, soft-solid structural colored film",
author = "Park, {Tae Joon} and Hwang, {Sun Kak} and Sungmin Park and Cho, {Sung Hwan} and Park, {Tae Hyun} and Beomjin Jeong and Kang, {Han Sol} and Ryu, {Du Yeol} and June Huh and Thomas, {Edwin L.} and Cheolmin Park",
year = "2015",
month = "10",
day = "27",
doi = "10.1021/acsnano.5b05234",
language = "English",
volume = "9",
pages = "12158--12167",
journal = "ACS Nano",
issn = "1936-0851",
publisher = "American Chemical Society",
number = "12",

}

TY - JOUR

T1 - Electrically Tunable Soft-Solid Block Copolymer Structural Color

AU - Park, Tae Joon

AU - Hwang, Sun Kak

AU - Park, Sungmin

AU - Cho, Sung Hwan

AU - Park, Tae Hyun

AU - Jeong, Beomjin

AU - Kang, Han Sol

AU - Ryu, Du Yeol

AU - Huh, June

AU - Thomas, Edwin L.

AU - Park, Cheolmin

PY - 2015/10/27

Y1 - 2015/10/27

N2 - One-dimensional photonic crystals based on the periodic stacking of two different dielectric layers have been widely studied, but the fabrication of mechanically flexible polymer structural color (SC) films, with electro-active color switching, remains challenging. Here, we demonstrate free-standing electric field tunable ionic liquid (IL) swollen block copolymer (BCP) films. Placement of a polymer/ionic liquid film-reservoir adjacent to a self-assembled poly(styrene-block-quaternized 2-vinylpyridine) (PS-b-QP2VP) copolymer SC film allowed the development of red (R), green (G), and blue (B) full-color SC block copolymer films by swelling of the QP2VP domains by the ionic liquid associated with water molecules. The IL-polymer/BCP SC film is mechanically flexible with excellent color stability over several days at ambient conditions. The selective swelling of the QP2VP domains could be controlled by both the ratio of the IL to a polymer in the gel-like IL reservoir layer and by an applied voltage in the range of -3 to +6 V using a metal/IL reservoir/SC film/IL reservoir/metal capacitor type device.

AB - One-dimensional photonic crystals based on the periodic stacking of two different dielectric layers have been widely studied, but the fabrication of mechanically flexible polymer structural color (SC) films, with electro-active color switching, remains challenging. Here, we demonstrate free-standing electric field tunable ionic liquid (IL) swollen block copolymer (BCP) films. Placement of a polymer/ionic liquid film-reservoir adjacent to a self-assembled poly(styrene-block-quaternized 2-vinylpyridine) (PS-b-QP2VP) copolymer SC film allowed the development of red (R), green (G), and blue (B) full-color SC block copolymer films by swelling of the QP2VP domains by the ionic liquid associated with water molecules. The IL-polymer/BCP SC film is mechanically flexible with excellent color stability over several days at ambient conditions. The selective swelling of the QP2VP domains could be controlled by both the ratio of the IL to a polymer in the gel-like IL reservoir layer and by an applied voltage in the range of -3 to +6 V using a metal/IL reservoir/SC film/IL reservoir/metal capacitor type device.

KW - block copolymers

KW - electrically switchable structural color

KW - flexible photonic crystals

KW - low operation voltage

KW - soft-solid structural colored film

UR - http://www.scopus.com/inward/record.url?scp=84952361280&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84952361280&partnerID=8YFLogxK

U2 - 10.1021/acsnano.5b05234

DO - 10.1021/acsnano.5b05234

M3 - Article

AN - SCOPUS:84952361280

VL - 9

SP - 12158

EP - 12167

JO - ACS Nano

JF - ACS Nano

SN - 1936-0851

IS - 12

ER -