Formation of PbSe/CdSe Core/Shell Nanocrystals for Stable Near-Infrared High Photoluminescence Emission

PbSe/CdSe core/shell nanocrystals with quantum yield of 70% were obtained by the “successive ion layer adsorption and reaction” technology in solution. The thickness of the CdSe shell was exactly controlled. A series of spectral red shifts with the CdSe shell growth were observed, which was attribut...

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Detalles Bibliográficos
Autores principales: Zhang, Yu, Dai, Quanqin, Li, Xinbi, Cui, Qingzhou, Gu, Zhiyong, Zou, Bo, Wang, Yiding, Yu, William W
Formato: Texto
Lenguaje:English
Publicado: Springer 2010
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2897039/
https://www.ncbi.nlm.nih.gov/pubmed/20676204
http://dx.doi.org/10.1007/s11671-010-9637-7
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author Zhang, Yu
Dai, Quanqin
Li, Xinbi
Cui, Qingzhou
Gu, Zhiyong
Zou, Bo
Wang, Yiding
Yu, William W
author_facet Zhang, Yu
Dai, Quanqin
Li, Xinbi
Cui, Qingzhou
Gu, Zhiyong
Zou, Bo
Wang, Yiding
Yu, William W
author_sort Zhang, Yu
collection PubMed
description PbSe/CdSe core/shell nanocrystals with quantum yield of 70% were obtained by the “successive ion layer adsorption and reaction” technology in solution. The thickness of the CdSe shell was exactly controlled. A series of spectral red shifts with the CdSe shell growth were observed, which was attributed to the combined effect of the surface polarization and the expansion of carriers’ wavefunctions. The stability of PbSe nanocrystals was tremendously improved with CdSe shells.
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spelling pubmed-28970392010-07-29 Formation of PbSe/CdSe Core/Shell Nanocrystals for Stable Near-Infrared High Photoluminescence Emission Zhang, Yu Dai, Quanqin Li, Xinbi Cui, Qingzhou Gu, Zhiyong Zou, Bo Wang, Yiding Yu, William W Nanoscale Res Lett Nano Express PbSe/CdSe core/shell nanocrystals with quantum yield of 70% were obtained by the “successive ion layer adsorption and reaction” technology in solution. The thickness of the CdSe shell was exactly controlled. A series of spectral red shifts with the CdSe shell growth were observed, which was attributed to the combined effect of the surface polarization and the expansion of carriers’ wavefunctions. The stability of PbSe nanocrystals was tremendously improved with CdSe shells. Springer 2010-06-01 /pmc/articles/PMC2897039/ /pubmed/20676204 http://dx.doi.org/10.1007/s11671-010-9637-7 Text en Copyright © 2010 The Author(s) https://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Nano Express
Zhang, Yu
Dai, Quanqin
Li, Xinbi
Cui, Qingzhou
Gu, Zhiyong
Zou, Bo
Wang, Yiding
Yu, William W
Formation of PbSe/CdSe Core/Shell Nanocrystals for Stable Near-Infrared High Photoluminescence Emission
title Formation of PbSe/CdSe Core/Shell Nanocrystals for Stable Near-Infrared High Photoluminescence Emission
title_full Formation of PbSe/CdSe Core/Shell Nanocrystals for Stable Near-Infrared High Photoluminescence Emission
title_fullStr Formation of PbSe/CdSe Core/Shell Nanocrystals for Stable Near-Infrared High Photoluminescence Emission
title_full_unstemmed Formation of PbSe/CdSe Core/Shell Nanocrystals for Stable Near-Infrared High Photoluminescence Emission
title_short Formation of PbSe/CdSe Core/Shell Nanocrystals for Stable Near-Infrared High Photoluminescence Emission
title_sort formation of pbse/cdse core/shell nanocrystals for stable near-infrared high photoluminescence emission
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2897039/
https://www.ncbi.nlm.nih.gov/pubmed/20676204
http://dx.doi.org/10.1007/s11671-010-9637-7
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