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Enhanced photoluminescence in core-sheath CdS–PANI coaxial nanocables: A charge transfer mechanism

Core-sheath CdS and Polyaniline (PANI) coaxial nanocables were fabricated by an electrochemical method, using an anodic aluminum oxide (AAO) membrane as the template. The morphology and optical properties of the obtained nanocables were investigated by several techniques. The photoluminescence (PL)... Full description

Journal Title: Chemical Physics Letters 2005, Vol.412(1), pp.60-64
Main Author: Xi, Yanyan
Other Authors: Zhou, Jianzhang , Guo, Honghui , Cai, Chengdong , Lin, Zhonghua
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0009-2614 ; E-ISSN: 1873-4448 ; DOI: 10.1016/j.cplett.2005.06.087
Link: https://www.sciencedirect.com/science/article/pii/S0009261405009619
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recordid: elsevier_sdoi_10_1016_j_cplett_2005_06_087
title: Enhanced photoluminescence in core-sheath CdS–PANI coaxial nanocables: A charge transfer mechanism
format: Article
creator:
  • Xi, Yanyan
  • Zhou, Jianzhang
  • Guo, Honghui
  • Cai, Chengdong
  • Lin, Zhonghua
subjects:
  • Chemistry
ispartof: Chemical Physics Letters, 2005, Vol.412(1), pp.60-64
description: Core-sheath CdS and Polyaniline (PANI) coaxial nanocables were fabricated by an electrochemical method, using an anodic aluminum oxide (AAO) membrane as the template. The morphology and optical properties of the obtained nanocables were investigated by several techniques. The photoluminescence (PL) of the CdS nanowire was observed to be significantly enhanced by the outer PANI nanotube. We propose a photo-generated charge transfer (PGCT) mechanism from outer PANI into the CdS core to explain this enhancement effect. The PGCT mechanism is different from those usually invoked for PL enhancement of nano-semiconductors.
language: eng
source:
identifier: ISSN: 0009-2614 ; E-ISSN: 1873-4448 ; DOI: 10.1016/j.cplett.2005.06.087
fulltext: fulltext
issn:
  • 0009-2614
  • 00092614
  • 1873-4448
  • 18734448
url: Link


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titleEnhanced photoluminescence in core-sheath CdS–PANI coaxial nanocables: A charge transfer mechanism
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descriptionCore-sheath CdS and Polyaniline (PANI) coaxial nanocables were fabricated by an electrochemical method, using an anodic aluminum oxide (AAO) membrane as the template. The morphology and optical properties of the obtained nanocables were investigated by several techniques. The photoluminescence (PL) of the CdS nanowire was observed to be significantly enhanced by the outer PANI nanotube. We propose a photo-generated charge transfer (PGCT) mechanism from outer PANI into the CdS core to explain this enhancement effect. The PGCT mechanism is different from those usually invoked for PL enhancement of nano-semiconductors.
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Core-sheath CdS and Polyaniline (PANI) coaxial nanocables were fabricated by an electrochemical method, using an anodic aluminum oxide (AAO) membrane as the template. The morphology and optical properties of the obtained nanocables were investigated by several techniques. The photoluminescence (PL) of the CdS nanowire was observed to be significantly enhanced by the outer PANI nanotube. We propose a photo-generated charge transfer (PGCT) mechanism from outer PANI into the CdS core to explain this enhancement effect. The PGCT mechanism is different from those usually invoked for PL enhancement of nano-semiconductors.

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abstract

Core-sheath CdS and Polyaniline (PANI) coaxial nanocables were fabricated by an electrochemical method, using an anodic aluminum oxide (AAO) membrane as the template. The morphology and optical properties of the obtained nanocables were investigated by several techniques. The photoluminescence (PL) of the CdS nanowire was observed to be significantly enhanced by the outer PANI nanotube. We propose a photo-generated charge transfer (PGCT) mechanism from outer PANI into the CdS core to explain this enhancement effect. The PGCT mechanism is different from those usually invoked for PL enhancement of nano-semiconductors.

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