High quality ZnS and core/shell CdSe/ZnS nanoparticles from air-stable precursors

Shizhong Wang; Jing Zou; Benjamin R. Jarrett; Sungjin Cho; Angelique Y. Louie; Susan M. Kauzlarich

doi:10.1117/12.663346

High quality ZnS and core/shell CdSe/ZnS nanoparticles from air-stable precursors

Shizhong Wang, Jing Zou, Benjamin R. Jarrett, Sungjin Cho, Angelique Y. Louie, Susan M. Kauzlarich

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We report the synthesis of high quality ZnS nanoparticles using sulfur and zinc acetate as the S and Zn source, respectively. It was found that sulfur and zinc acetate could be easily dissolved in the mixture of trioctylphosphine oxide (TOPO) and hexadecylamine (HDA) at a temperature of about 65°C and ZnS nanoparticles were generated at temperatures above 150°C. These reactive species of sulfur and zinc were also used for an epitaxial growth of ZnS shell around a CdSe core. The formation of ZnS nanoparticles was confirmed by powder X-ray diffraction (XRD). Particle size and size distribution were studied by transmission electron microscopy (TEM). Optical properties were characterized by a combination of UV-vis and photoluminescence (PL) spectroscopy. The PL quantum yield of the CdSe/ZnS nanoparticles reached about 66% compared with the dye, Rhodamine 6G (R6G). The present synthetic strategy is a "greener" and simpler synthetic scheme due to the use of air-stable and environmentally benign reagents of sulfur and zinc acetate instead of air-sensitive ones such as dimethylzinc and bis(trimethylsilyl) sulfide.

Original language	English (US)
Title of host publication	Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume	6096
DOIs	https://doi.org/10.1117/12.663346
State	Published - 2006
Event	Colloidal Quantum Dots for Biomedical Applications - San Jose, CA, United States Duration: Jan 22 2006 → Jan 24 2006

Other

Other	Colloidal Quantum Dots for Biomedical Applications
Country	United States
City	San Jose, CA
Period	1/22/06 → 1/24/06

Keywords

Core/shell structure
Nanoparticles
Optical properties
Quantum dots
Semiconductor
Synthesis

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1117/12.663346

Fingerprint Dive into the research topics of 'High quality ZnS and core/shell CdSe/ZnS nanoparticles from air-stable precursors'. Together they form a unique fingerprint.

Cite this

@inproceedings{d3be59314dd546ddb5246a553ff97b30,

title = "High quality ZnS and core/shell CdSe/ZnS nanoparticles from air-stable precursors",

abstract = "We report the synthesis of high quality ZnS nanoparticles using sulfur and zinc acetate as the S and Zn source, respectively. It was found that sulfur and zinc acetate could be easily dissolved in the mixture of trioctylphosphine oxide (TOPO) and hexadecylamine (HDA) at a temperature of about 65°C and ZnS nanoparticles were generated at temperatures above 150°C. These reactive species of sulfur and zinc were also used for an epitaxial growth of ZnS shell around a CdSe core. The formation of ZnS nanoparticles was confirmed by powder X-ray diffraction (XRD). Particle size and size distribution were studied by transmission electron microscopy (TEM). Optical properties were characterized by a combination of UV-vis and photoluminescence (PL) spectroscopy. The PL quantum yield of the CdSe/ZnS nanoparticles reached about 66% compared with the dye, Rhodamine 6G (R6G). The present synthetic strategy is a {"}greener{"} and simpler synthetic scheme due to the use of air-stable and environmentally benign reagents of sulfur and zinc acetate instead of air-sensitive ones such as dimethylzinc and bis(trimethylsilyl) sulfide.",

keywords = "Core/shell structure, Nanoparticles, Optical properties, Quantum dots, Semiconductor, Synthesis",

author = "Shizhong Wang and Jing Zou and Jarrett, {Benjamin R.} and Sungjin Cho and Louie, {Angelique Y.} and Kauzlarich, {Susan M.}",

year = "2006",

doi = "10.1117/12.663346",

language = "English (US)",

isbn = "0819461385",

volume = "6096",

booktitle = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",

note = "Colloidal Quantum Dots for Biomedical Applications ; Conference date: 22-01-2006 Through 24-01-2006",

}

TY - GEN

T1 - High quality ZnS and core/shell CdSe/ZnS nanoparticles from air-stable precursors

AU - Wang, Shizhong

AU - Zou, Jing

AU - Jarrett, Benjamin R.

AU - Cho, Sungjin

AU - Louie, Angelique Y.

AU - Kauzlarich, Susan M.

PY - 2006

Y1 - 2006

N2 - We report the synthesis of high quality ZnS nanoparticles using sulfur and zinc acetate as the S and Zn source, respectively. It was found that sulfur and zinc acetate could be easily dissolved in the mixture of trioctylphosphine oxide (TOPO) and hexadecylamine (HDA) at a temperature of about 65°C and ZnS nanoparticles were generated at temperatures above 150°C. These reactive species of sulfur and zinc were also used for an epitaxial growth of ZnS shell around a CdSe core. The formation of ZnS nanoparticles was confirmed by powder X-ray diffraction (XRD). Particle size and size distribution were studied by transmission electron microscopy (TEM). Optical properties were characterized by a combination of UV-vis and photoluminescence (PL) spectroscopy. The PL quantum yield of the CdSe/ZnS nanoparticles reached about 66% compared with the dye, Rhodamine 6G (R6G). The present synthetic strategy is a "greener" and simpler synthetic scheme due to the use of air-stable and environmentally benign reagents of sulfur and zinc acetate instead of air-sensitive ones such as dimethylzinc and bis(trimethylsilyl) sulfide.

AB - We report the synthesis of high quality ZnS nanoparticles using sulfur and zinc acetate as the S and Zn source, respectively. It was found that sulfur and zinc acetate could be easily dissolved in the mixture of trioctylphosphine oxide (TOPO) and hexadecylamine (HDA) at a temperature of about 65°C and ZnS nanoparticles were generated at temperatures above 150°C. These reactive species of sulfur and zinc were also used for an epitaxial growth of ZnS shell around a CdSe core. The formation of ZnS nanoparticles was confirmed by powder X-ray diffraction (XRD). Particle size and size distribution were studied by transmission electron microscopy (TEM). Optical properties were characterized by a combination of UV-vis and photoluminescence (PL) spectroscopy. The PL quantum yield of the CdSe/ZnS nanoparticles reached about 66% compared with the dye, Rhodamine 6G (R6G). The present synthetic strategy is a "greener" and simpler synthetic scheme due to the use of air-stable and environmentally benign reagents of sulfur and zinc acetate instead of air-sensitive ones such as dimethylzinc and bis(trimethylsilyl) sulfide.

KW - Core/shell structure

KW - Nanoparticles

KW - Optical properties

KW - Quantum dots

KW - Semiconductor

KW - Synthesis

UR - http://www.scopus.com/inward/record.url?scp=33745214460&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33745214460&partnerID=8YFLogxK

U2 - 10.1117/12.663346

DO - 10.1117/12.663346

M3 - Conference contribution

AN - SCOPUS:33745214460

SN - 0819461385

SN - 9780819461384

VL - 6096

BT - Progress in Biomedical Optics and Imaging - Proceedings of SPIE

T2 - Colloidal Quantum Dots for Biomedical Applications

Y2 - 22 January 2006 through 24 January 2006

ER -