Discontinuous Growth of Colloidal CdSe Nanocrystals in the Magic Structure

被引：34

作者：

Chen, Hsueh Shih ^{[1
]}

Kumar, Ramachandran Vasant ^{[1
]}

机构：

[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 01期

关键词：

QUANTUM DOTS; ALTERNATIVE ROUTES; SHAPE CONTROL; SEMICONDUCTOR; NUCLEATION; NANOPARTICLES; MONODISPERSE; KINETICS; ZNSE; CDTE;

D O I：

10.1021/jp809360n

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This study reveals that the growth rate of colloidal CdSe nanocrystals negatively deviates from the prediction of the classic growth theory from thermodynamics as CdSe nanocrystals attain the magic closed-shell structure at around 1.8 nm. We have suggested that the negative deviation is the consequence of the chemical potential well generated from the closed-shell structure of nanocrystals.

引用

页码：31 / 36

页数：6

共 26 条

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

Bruchez, M ;

Moronne, M ;

Gin, P ;

Weiss, S ;

Alivisatos, AP .

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

[2] Nucleation and growth kinetics of CdSe nanocrystals in octadecene [J].

Bullen, CR ;

Mulvaney, P .

NANO LETTERS, 2004, 4 (12) :2303-2307

[3] InGaN-CdSe-ZnSe quantum dots white LEDs [J].

Chen, HS ;

Hsu, CK ;

Hong, HY .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2006, 18 (1-4) :193-195

[4] Colloidal ZnSe, ZnSe/ZnS, and ZnSe/ZnSeS quantum dots synthesized from ZnO [J].

Chen, HS ;

Lo, B ;

Hwang, JY ;

Chang, GY ;

Chen, CM ;

Tasi, SJ ;

Wang, SJJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (44) :17119-17123

[5]

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

[6] Synthesis and characterization of strongly luminescing ZnS-Capped CdSe nanocrystals [J].

Hines, MA ;

Guyot-Sionnest, P .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (02) :468-471

[7] Hybrid nanorod-polymer solar cells [J].

Huynh, WU ;

Dittmer, JJ ;

Alivisatos, AP .

SCIENCE, 2002, 295 (5564) :2425-2427

[8] Ultra-stable nanoparticles of CdSe revealed from mass spectrometry [J].

Kasuya, A ;

Sivamohan, R ;

Barnakov, YA ;

Dmitruk, IM ;

Nirasawa, T ;

Romanyuk, VR ;

Kumar, V ;

Mamykin, SV ;

Tohji, K ;

Jeyadevan, B ;

Shinoda, K ;

Kudo, T ;

Terasaki, O ;

Liu, Z ;

Belosludov, RV ;

Sundararajan, V ;

Kawazoe, Y .

NATURE MATERIALS, 2004, 3 (02) :99-102

[9] Sequential growth of magic-size CdSe nanocrystals [J].

Kudera, Stefan ;

Zanella, Marco ;

Giannini, Cinzia ;

Rizzo, Aurora ;

Li, Yanqin ;

Gigli, Giuseppe ;

Cingolani, Roberto ;

Ciccarella, Giuseppe ;

Spahl, Werner ;

Parak, Wolfgang J. ;

Manna, Liberato .

ADVANCED MATERIALS, 2007, 19 (04) :548-+

[10] Shape control of colloidal semiconductor nanocrystals [J].

Manna, L ;

Scher, EC ;

Alivisatos, AP .

JOURNAL OF CLUSTER SCIENCE, 2002, 13 (04) :521-532

← 1 2 3 →