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

科研成果: 期刊稿件 › 文章 › 同行评审

5 引用（Scopus）

摘要

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.

源语言	英语
页（从-至）	1669-1671
页数	3
期刊	Materials Letters
卷	65
期	11
DOI	https://doi.org/10.1016/j.matlet.2011.03.001
出版状态	已出版 - 15 6月 2011

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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",

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language = "英语",

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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

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

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