Facile fabrication of CdTe/montmorillonite nanocomposite films with stable photoluminescence properties

He Yi Xie; Jian Yang; Sheng Yang Yang; Cai Feng Wang; Li Chen; Su Chen

doi:10.1016/j.matlet.2011.03.001

Facile fabrication of CdTe/montmorillonite nanocomposite films with stable photoluminescence properties

He Yi Xie, Jian Yang, Sheng Yang Yang, Cai Feng Wang, Li Chen, Su Chen

Nanjing Tech University

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

5 Scopus citations

Abstract

We report herein the facile synthesis of CdTe/montmorillonite (MMT) nanocomposite films via charge-charge interactions between the CdTe quantum dots (QDs) and MMT platelets. Firstly, negatively charged CdTe QDs were prepared with the use of thioglycolic acid (TGA) as ligand. Then hybrid of the as-prepared TGA-stabilized CdTe QDs with sodium montmorillonite (Na-MMT) and cetyltrimethylammonium-modified montmorillonite (CTA-MMT), respectively, afforded novel CdTe/MMT nanocomposite films. The structure and optical properties of CdTe/MMT nanocomposite films were thoroughly investigated by scanning electron microscope (SEM), ultraviolet transmittance reflection and photoluminescence (PL) measurements. Results showed that CdTe/(CTA-MMT) nanocomposite films exhibited highly enhanced PL intensity compared with CdTe/(Na-MMT) nanocomposite films. More importantly, CdTe QDs in CdTe/(CTA-MMT) nanocomposite films well maintained PL properties even after thermal annealing at 100 °C for 10 h.

Original language	English
Pages (from-to)	1669-1671
Number of pages	3
Journal	Materials Letters
Volume	65
Issue number	11
DOIs	https://doi.org/10.1016/j.matlet.2011.03.001
State	Published - 15 Jun 2011

Keywords

Luminescence
Montmorillonite
Nanocomposites
Quantum dots
Thin films

Access to Document

10.1016/j.matlet.2011.03.001

Cite this

@article{8ca72d269e0b469180f5335d052498dd,

title = "Facile fabrication of CdTe/montmorillonite nanocomposite films with stable photoluminescence properties",

abstract = "We report herein the facile synthesis of CdTe/montmorillonite (MMT) nanocomposite films via charge-charge interactions between the CdTe quantum dots (QDs) and MMT platelets. Firstly, negatively charged CdTe QDs were prepared with the use of thioglycolic acid (TGA) as ligand. Then hybrid of the as-prepared TGA-stabilized CdTe QDs with sodium montmorillonite (Na-MMT) and cetyltrimethylammonium-modified montmorillonite (CTA-MMT), respectively, afforded novel CdTe/MMT nanocomposite films. The structure and optical properties of CdTe/MMT nanocomposite films were thoroughly investigated by scanning electron microscope (SEM), ultraviolet transmittance reflection and photoluminescence (PL) measurements. Results showed that CdTe/(CTA-MMT) nanocomposite films exhibited highly enhanced PL intensity compared with CdTe/(Na-MMT) nanocomposite films. More importantly, CdTe QDs in CdTe/(CTA-MMT) nanocomposite films well maintained PL properties even after thermal annealing at 100 °C for 10 h.",

keywords = "Luminescence, Montmorillonite, Nanocomposites, Quantum dots, Thin films",

author = "Xie, {He Yi} and Jian Yang and Yang, {Sheng Yang} and Wang, {Cai Feng} and Li Chen and Su Chen",

year = "2011",

month = jun,

day = "15",

doi = "10.1016/j.matlet.2011.03.001",

language = "英语",

volume = "65",

pages = "1669--1671",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

number = "11",

}

TY - JOUR

T1 - Facile fabrication of CdTe/montmorillonite nanocomposite films with stable photoluminescence properties

AU - Xie, He Yi

AU - Yang, Jian

AU - Yang, Sheng Yang

AU - Wang, Cai Feng

AU - Chen, Li

AU - Chen, Su

PY - 2011/6/15

Y1 - 2011/6/15

N2 - We report herein the facile synthesis of CdTe/montmorillonite (MMT) nanocomposite films via charge-charge interactions between the CdTe quantum dots (QDs) and MMT platelets. Firstly, negatively charged CdTe QDs were prepared with the use of thioglycolic acid (TGA) as ligand. Then hybrid of the as-prepared TGA-stabilized CdTe QDs with sodium montmorillonite (Na-MMT) and cetyltrimethylammonium-modified montmorillonite (CTA-MMT), respectively, afforded novel CdTe/MMT nanocomposite films. The structure and optical properties of CdTe/MMT nanocomposite films were thoroughly investigated by scanning electron microscope (SEM), ultraviolet transmittance reflection and photoluminescence (PL) measurements. Results showed that CdTe/(CTA-MMT) nanocomposite films exhibited highly enhanced PL intensity compared with CdTe/(Na-MMT) nanocomposite films. More importantly, CdTe QDs in CdTe/(CTA-MMT) nanocomposite films well maintained PL properties even after thermal annealing at 100 °C for 10 h.

AB - We report herein the facile synthesis of CdTe/montmorillonite (MMT) nanocomposite films via charge-charge interactions between the CdTe quantum dots (QDs) and MMT platelets. Firstly, negatively charged CdTe QDs were prepared with the use of thioglycolic acid (TGA) as ligand. Then hybrid of the as-prepared TGA-stabilized CdTe QDs with sodium montmorillonite (Na-MMT) and cetyltrimethylammonium-modified montmorillonite (CTA-MMT), respectively, afforded novel CdTe/MMT nanocomposite films. The structure and optical properties of CdTe/MMT nanocomposite films were thoroughly investigated by scanning electron microscope (SEM), ultraviolet transmittance reflection and photoluminescence (PL) measurements. Results showed that CdTe/(CTA-MMT) nanocomposite films exhibited highly enhanced PL intensity compared with CdTe/(Na-MMT) nanocomposite films. More importantly, CdTe QDs in CdTe/(CTA-MMT) nanocomposite films well maintained PL properties even after thermal annealing at 100 °C for 10 h.

KW - Luminescence

KW - Montmorillonite

KW - Nanocomposites

KW - Quantum dots

KW - Thin films

UR - http://www.scopus.com/inward/record.url?scp=79953251043&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2011.03.001

DO - 10.1016/j.matlet.2011.03.001

M3 - 文章

AN - SCOPUS:79953251043

SN - 0167-577X

VL - 65

SP - 1669

EP - 1671

JO - Materials Letters

JF - Materials Letters

IS - 11

ER -

Facile fabrication of CdTe/montmorillonite nanocomposite films with stable photoluminescence properties

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this