Synthesis of CdSe, ZnSe, and ZnxCd1-xSe nanocrystals and their silica sheathed core/shell structures

被引：58

作者：

Ge, Jian-Ping

Xu, Sheng

Zhuang, Jing

Wang, Xun

Peng, Qing

Li, Ya-Dong ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Key Lab Atom & Mol Nanosci, Beijing 100084, Peoples R China

来源：

INORGANIC CHEMISTRY | 2006年 / 45卷 / 13期

关键词：

D O I：

10.1021/ic051598k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Uniform ZnxCd1-xSe nanocrystals have been prepared at the artificially designed water - oil interface using Na2SeO3, Cd(NO3)(2), and Zn(NO3)(2) as precursors. The chemical composition and band gap of the ZnxCd1-xSe nanocrystals can be adjusted via different combinations of source material. The coating of a SiO2 shell could transform the hydrophobic particles into hydrophilic particles. An advantage of this method is that a water phase could be added to the oleic acid (OLEA) synthesis system, which could be extended to make the synthesis of various nanocrystals more simple and flexible.

引用

收藏

页码：4922 / 4927

页数：6

相关论文

共 42 条

[1] Semiconductor clusters, nanocrystals, and quantum dots [J].

Alivisatos, AP .

SCIENCE, 1996, 271 (5251) :933-937

[2] Self-organized, highly luminescent CdSe nanorod-DNA complexes [J].

Artemyev, M ;

Kisiel, D ;

Abmiotko, S ;

Antipina, MN ;

Khomutov, GB ;

Kislov, VV ;

Rakhnyanskaya, AA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (34) :10594-10597

[3] Colloidal two-dimensional systems: CdSe quantum shells and wells [J].

Battaglia, D ;

Li, JJ ;

Wang, YJ ;

Peng, XG .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (41) :5035-5039

[4] BULK AND NANOSTRUCTURE GROUP-II-VI COMPOUNDS FROM MOLECULAR ORGANOMETALLIC PRECURSORS [J].

BRENNAN, JG ;

SIEGRIST, T ;

CARROLL, PJ ;

STUCZYNSKI, SM ;

REYNDERS, P ;

BRUS, LE ;

STEIGERWALD, ML .

CHEMISTRY OF MATERIALS, 1990, 2 (04) :403-409

[5] THE PREPARATION OF LARGE SEMICONDUCTOR CLUSTERS VIA THE PYROLYSIS OF A MOLECULAR PRECURSOR [J].

BRENNAN, JG ;

SIEGRIST, T ;

CARROLL, PJ ;

STUCZYNSKI, SM ;

BRUS, LE ;

STEIGERWALD, ML .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (11) :4141-4143

[6] Semiconductor nanocrystals as fluorescent biological labels [J].

Bruchez, M ;

Moronne, M ;

Gin, P ;

Weiss, S ;

Alivisatos, AP .

SCIENCE, 1998, 281 (5385) :2013-2016

[7] Quantum dot bioconjugates for ultrasensitive nonisotopic detection [J].

Chan, WCW ;

Nie, SM .

SCIENCE, 1998, 281 (5385) :2016-2018

[8]

COLVIN VL, 1994, NATURE, V370, P354, DOI 10.1038/370354a0

[9] In vivo imaging of quantum dots encapsulated in phospholipid micelles [J].

Dubertret, B ;

Skourides, P ;

Norris, DJ ;

Noireaux, V ;

Brivanlou, AH ;

Libchaber, A .

SCIENCE, 2002, 298 (5599) :1759-1762

[10] Mechanism of aqueous ultrasonic reaction: controlled synthesis, luminescence properties of amorphous cluster and nanocrystalline CdSe [J].

Ge, JP ;

Li, YD ;

Yang, GQ .

CHEMICAL COMMUNICATIONS, 2002, (17) :1826-1827

← 1 2 3 4 5 →