On the synergistic coupling properties of composite CdS/TiO 2 nanoparticle arrays confined in nanopatterned hybrid thin films

Dinakaran Kannaiyan, Eunhye Kim, Nayoun Won, Kang Wook Kim, Yoon Hee Jang, Min Ah Cha, Du Yeol Ryu, Sungjee Kim, Dong Ha Kim

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

Two-dimensional (2D) arrays of hybrid CdS/TiO 2 composite nanodots were fabricated on solid substrates using amphiphilic poly(styrene-block-ethylene oxide) diblock copolymer (PS-b-PEO) micelles as templates loaded with CdS nanoparticles (NPs) and TiO 2 sol-gel precursors. The inorganic precursors were selectively incorporated into PEO domains of PS-b-PEO due to the specific interactions. The addition of CdS quantum dots (QDs) into thin films of the PS-b-PEO/TiO 2 sol-gel mixture led to the morphological changes from mixed wire/hexagonal dot to well-defined, quasi-hexagonal dot arrays. The PS-b-PEO/TiO 2 /CdS system showed an enhanced absorption along with red shift behavior in the UV-visible spectral range compared with the PS-b-PEO/TiO 2 films. Photoluminescence (PL) studies showed a quenching of CdS emission in the presence of TiO 2 . An enhanced photocatalytic degradation of methylene blue (MB) was observed in the hybrid PS-b-PEO/TiO 2 /CdS thin film.

Original languageEnglish
Pages (from-to)677-682
Number of pages6
JournalJournal of Materials Chemistry
Volume20
Issue number4
DOIs
Publication statusPublished - 2010 Mar 25

Fingerprint

Polyethylene oxides
Nanoparticles
Thin films
Composite materials
Sol-gels
Ethylene Oxide
Styrene
Methylene Blue
Micelles
Semiconductor quantum dots
Block copolymers
polystyrene-b-poly(ethylene oxide)
Quenching
Photoluminescence
Wire
Ethylene
Degradation
Substrates
Oxides

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

Cite this

Kannaiyan, Dinakaran ; Kim, Eunhye ; Won, Nayoun ; Kim, Kang Wook ; Jang, Yoon Hee ; Cha, Min Ah ; Ryu, Du Yeol ; Kim, Sungjee ; Kim, Dong Ha. / On the synergistic coupling properties of composite CdS/TiO 2 nanoparticle arrays confined in nanopatterned hybrid thin films In: Journal of Materials Chemistry. 2010 ; Vol. 20, No. 4. pp. 677-682.
@article{4d5e8449ac5b4fd499e4ad03fd333e5c,
title = "On the synergistic coupling properties of composite CdS/TiO 2 nanoparticle arrays confined in nanopatterned hybrid thin films",
abstract = "Two-dimensional (2D) arrays of hybrid CdS/TiO 2 composite nanodots were fabricated on solid substrates using amphiphilic poly(styrene-block-ethylene oxide) diblock copolymer (PS-b-PEO) micelles as templates loaded with CdS nanoparticles (NPs) and TiO 2 sol-gel precursors. The inorganic precursors were selectively incorporated into PEO domains of PS-b-PEO due to the specific interactions. The addition of CdS quantum dots (QDs) into thin films of the PS-b-PEO/TiO 2 sol-gel mixture led to the morphological changes from mixed wire/hexagonal dot to well-defined, quasi-hexagonal dot arrays. The PS-b-PEO/TiO 2 /CdS system showed an enhanced absorption along with red shift behavior in the UV-visible spectral range compared with the PS-b-PEO/TiO 2 films. Photoluminescence (PL) studies showed a quenching of CdS emission in the presence of TiO 2 . An enhanced photocatalytic degradation of methylene blue (MB) was observed in the hybrid PS-b-PEO/TiO 2 /CdS thin film.",
author = "Dinakaran Kannaiyan and Eunhye Kim and Nayoun Won and Kim, {Kang Wook} and Jang, {Yoon Hee} and Cha, {Min Ah} and Ryu, {Du Yeol} and Sungjee Kim and Kim, {Dong Ha}",
year = "2010",
month = "3",
day = "25",
doi = "10.1039/b917858a",
language = "English",
volume = "20",
pages = "677--682",
journal = "Journal of Materials Chemistry",
issn = "0959-9428",
publisher = "Royal Society of Chemistry",
number = "4",

}

On the synergistic coupling properties of composite CdS/TiO 2 nanoparticle arrays confined in nanopatterned hybrid thin films . / Kannaiyan, Dinakaran; Kim, Eunhye; Won, Nayoun; Kim, Kang Wook; Jang, Yoon Hee; Cha, Min Ah; Ryu, Du Yeol; Kim, Sungjee; Kim, Dong Ha.

In: Journal of Materials Chemistry, Vol. 20, No. 4, 25.03.2010, p. 677-682.

Research output: Contribution to journalArticle

TY - JOUR

T1 - On the synergistic coupling properties of composite CdS/TiO 2 nanoparticle arrays confined in nanopatterned hybrid thin films

AU - Kannaiyan, Dinakaran

AU - Kim, Eunhye

AU - Won, Nayoun

AU - Kim, Kang Wook

AU - Jang, Yoon Hee

AU - Cha, Min Ah

AU - Ryu, Du Yeol

AU - Kim, Sungjee

AU - Kim, Dong Ha

PY - 2010/3/25

Y1 - 2010/3/25

N2 - Two-dimensional (2D) arrays of hybrid CdS/TiO 2 composite nanodots were fabricated on solid substrates using amphiphilic poly(styrene-block-ethylene oxide) diblock copolymer (PS-b-PEO) micelles as templates loaded with CdS nanoparticles (NPs) and TiO 2 sol-gel precursors. The inorganic precursors were selectively incorporated into PEO domains of PS-b-PEO due to the specific interactions. The addition of CdS quantum dots (QDs) into thin films of the PS-b-PEO/TiO 2 sol-gel mixture led to the morphological changes from mixed wire/hexagonal dot to well-defined, quasi-hexagonal dot arrays. The PS-b-PEO/TiO 2 /CdS system showed an enhanced absorption along with red shift behavior in the UV-visible spectral range compared with the PS-b-PEO/TiO 2 films. Photoluminescence (PL) studies showed a quenching of CdS emission in the presence of TiO 2 . An enhanced photocatalytic degradation of methylene blue (MB) was observed in the hybrid PS-b-PEO/TiO 2 /CdS thin film.

AB - Two-dimensional (2D) arrays of hybrid CdS/TiO 2 composite nanodots were fabricated on solid substrates using amphiphilic poly(styrene-block-ethylene oxide) diblock copolymer (PS-b-PEO) micelles as templates loaded with CdS nanoparticles (NPs) and TiO 2 sol-gel precursors. The inorganic precursors were selectively incorporated into PEO domains of PS-b-PEO due to the specific interactions. The addition of CdS quantum dots (QDs) into thin films of the PS-b-PEO/TiO 2 sol-gel mixture led to the morphological changes from mixed wire/hexagonal dot to well-defined, quasi-hexagonal dot arrays. The PS-b-PEO/TiO 2 /CdS system showed an enhanced absorption along with red shift behavior in the UV-visible spectral range compared with the PS-b-PEO/TiO 2 films. Photoluminescence (PL) studies showed a quenching of CdS emission in the presence of TiO 2 . An enhanced photocatalytic degradation of methylene blue (MB) was observed in the hybrid PS-b-PEO/TiO 2 /CdS thin film.

UR - http://www.scopus.com/inward/record.url?scp=77649192762&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77649192762&partnerID=8YFLogxK

U2 - 10.1039/b917858a

DO - 10.1039/b917858a

M3 - Article

VL - 20

SP - 677

EP - 682

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

SN - 0959-9428

IS - 4

ER -