Synthesis and characterization of SiO2 capped ZnCdS nanocrystals

被引：2

作者：

Yang GuoWei ^{[1
]}

Li DongMei ^{[1
]}

Zhu XueFeng ^{[1
]}

Xu Zhen ^{[1
]}

Wang YinQiang ^{[1
]}

机构：

[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China

来源：

THIN FILM PHYSICS AND APPLICATIONS, SIXTH INTERNATIONAL CONFERENCE | 2008年 / 6984卷

关键词：

nanocrystals; silica; core-shell structure; ZnCdS;

D O I：

10.1117/12.792185

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

ZnCdS/SiO2 nanocrystals with core-shell structure were fabricated by Micro-emulsions method via the hydrolysis of tetraethyl orthosilicate (TEOS). Using XRD and TEM, the size of capped nanocrystals was around 22nm with the uncaped round 12nm. Emitting peaks in PL spectra of ZnCdS shifted from 390nm to 540nm by adjusting the proportion of Zn/Cd. The water solubility and optical property are both obviously enhanced after the capsulation of SiO2.

引用

页码：98409 / 98409

页数：4

共 9 条

[1] The influence of structure and composition of a reverse SDS microemulsion on enzymatic activities and electrical conductivities [J].

Bauduin, P ;

Touraud, D ;

Kunz, W ;

Savelli, MP ;

Pulvin, S ;

Ninham, BW .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2005, 292 (01) :244-254

[2] The sol-gel preparation of ZnO/silica core-shell composites and hollow silica structure [J].

Han, Kun ;

Zhao, Zhihui ;

Xiang, Zheng ;

Wang, Chunlei ;

Zhang, Junhu ;

Yang, Bai .

MATERIALS LETTERS, 2007, 61 (02) :363-368

[3] Luminescent properties of ZnS:Mn2+ nanocrystals/SiO2 hybrid phosphor synthesized by in situ surface modification co-precipitation [J].

Hattori, Y ;

Isobe, T ;

Takahashi, H ;

Itoh, S .

JOURNAL OF LUMINESCENCE, 2005, 113 (1-2) :69-78

[4] Development of hybrid materials consisting of SiO2 microparticles embedded in phenolic-formaldehydic resin polymer matrices [J].

Hernández-Padrón, G ;

Rojas, F ;

García-Garduño, M ;

Canseco, MA ;

Castaño, VM .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 355 (1-2) :338-347

[5]

KULKARNI SK, 1946, APPL SURF SCI, P438

[6]

KULKARNI SK, 1946, APPL SURF SCI, P169

[7] Growth and characterization of ZnS and ZnCdS nanoclusters in mordenite zeolite host [J].

Raymond, O ;

Villavicencio, H ;

Petranovskii, V ;

Siqueiros, JM .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 360 (1-2) :202-206

[8]

SONG H, 2007, MAT SCI ENG B

[9] Water-soluble silica-overcoated CdS:Mn/ZnS semiconductor quantum dots [J].

Yang, HS ;

Holloway, PH ;

Santra, S .

JOURNAL OF CHEMICAL PHYSICS, 2004, 121 (15) :7421-7426

← 1 →