Synthesis of CdSe quantum dots in PVA matrix by radiolytic methods

被引：7

作者：

Biswal, Jayashree ^{[1
]}

Singh, Shalini ^{[2
]}

Rath, M. C. ^{[2
]}

Ramnani, S. P. ^{[1
]}

Sarkar, S. K. ^{[2
]}

Sabharwal, S. ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Radiat Technol Dev Div, Bombay 400085, Maharashtra, India

[2] Bhabha Atom Res Ctr, Radiat & Photochem Div, Bombay 400085, Maharashtra, India

来源：

INTERNATIONAL JOURNAL OF NANOTECHNOLOGY | 2010年 / 7卷 / 9-12期

关键词：

CdSe quantum dots; PVA; radiolytic methods; electron beam; gamma radiolysis; thin films; GAMMA-IRRADIATION PREPARATION; SILVER NANOPARTICLES; CADMIUM SELENIDE; RADIATION; NANOCRYSTALLITES; CLUSTERS;

D O I：

10.1504/IJNT.2010.034706

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Polymer films of polyvinyl alcohol (PVA) containing CdSe quantum clots of various sizes from 3 nm to 5 inn have been synthesised by the radiation-chemical route using CdSO4 and Na2SeSO3 as the starting materials under a reducing condition. 2 MeV electron beam from an electron accelerator and the gamma radiation from a cobalt-60 gamma chamber wereused as the irradiation sources for the syntheses. The particle sizes were small in the case of electron beam irradiation as compared to those in the case of the gamma irradiation. The sizes of the quantum dots were strongly dependent on the absorbed dose rate and the initial precursor concentrations. The CdSe quantum dots exhibit excitonic absorption at room temperature. The films containing these quantum dots were quite stable for months.

引用

页码：1013 / 1026

页数：14

共 24 条

[1] Nucleation, growth and properties of nanoclusters studied by radiation chemistry - Application to catalysis [J].

Belloni, J .

CATALYSIS TODAY, 2006, 113 (3-4) :141-156

[2] Synthesis of Guar-Gum-Stabilized Nanosized Silver Clusters with γ Radiation [J].

Biswal, Jayashree ;

Ramnani, S. P. ;

Shirolikar, Seema ;

Sabharwal, S. .

JOURNAL OF APPLIED POLYMER SCIENCE, 2009, 114 (04) :2348-2355

[3] Production and luminescent properties of CdSe and US nanoparticle-polymer composites [J].

Firth, AV ;

Haggata, SW ;

Khanna, PK ;

Williams, SJ ;

Allen, JW ;

Magennis, SW ;

Samuel, IDW ;

Cole-Hamilton, DJ .

JOURNAL OF LUMINESCENCE, 2004, 109 (3-4) :163-172

[4] γ-Irradiation preparation of cadmium selenide nano-particles in ethylenediamine system [J].

Ge, XW ;

Ni, YG ;

Liu, HR ;

Ye, QG ;

Zhang, ZC .

MATERIALS RESEARCH BULLETIN, 2001, 36 (09) :1609-1613

[5]

GICHEVA GD, 2005, 1 INT WORKSH SEM NAN

[6] Synthesis and characterization of semiconductor nanomaterials and micromaterials via gamma-irradiation route [J].

Hu, Yong ;

Chen, Jia-Fu .

JOURNAL OF CLUSTER SCIENCE, 2007, 18 (02) :371-387

[7] Synthesis and characterization of CdS and CdSe nanoparticles prepared from novel intramolecularly stabilized single-source precursors [J].

Kandasamy, Karuppasamy ;

Singh, Harkesh B. ;

Kulshreshtha, Shailendra K. .

JOURNAL OF CHEMICAL SCIENCES, 2009, 121 (03) :293-296

[8] A simple and effective synthesis of cadmium selenide in aqueous N,N′-dimethylformamide [J].

Khanna, PK ;

Morley, CP ;

Gorte, RM ;

Gokhale, R ;

Subbarao, VVVS ;

Satyanarayana, C .

MATERIALS CHEMISTRY AND PHYSICS, 2004, 83 (2-3) :323-327

[9] Dose rate and irradiation time effects on the shape of Au nanomaterials under proton beam irradiation [J].

Kim, Yeong-Joon ;

Song, Jae Hee .

NANOTECHNOLOGY, 2007, 18 (44)

[10]

Klimov V.I., 2003, LOS ALAMOS SCI, V28, P214

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