Influence of synthesis parameters on the growth of US nanoparticles in colloidal solution and determination of growth kinetics using Karhunen-Loeve decomposition

被引:15
作者
Barglik-Chory, C
Münster, AF
Strohm, H
Remenyi, C
Müller, G
机构
[1] Univ Wurzburg, Lehrstuhl Silicatchem, D-97070 Wurzburg, Germany
[2] Univ Wurzburg, Inst Phys Chem, D-97074 Wurzburg, Germany
关键词
D O I
10.1016/S0009-2614(03)00706-1
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
The growth of US nanoparticles during aging at ambient temperature is investigated with respect to the type of stabilizer, the concentration of the colloidal solution, and the molar ratio of sulfide to cadmium. The UV/Vis absorption spectra recorded within a period of seven days are analyzed by Karhunen-Loeve decomposition. It revealed a single process with first-order decomposition kinetics for each of the measured time series, and the respective rate constants are calculated. An explanation describing possible mechanisms for the observed ripening of the colloids is given. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:319 / 325
页数:7
相关论文
共 26 条
[1]   EVOLUTION OF CLUSTER SIZE DISTRIBUTION IN NUCLEATION AND GROWTH-PROCESSES [J].
BARTELS, J ;
LEMBKE, U ;
PASCOVA, R ;
SCHMELZER, J ;
GUTZOW, I .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1991, 136 (03) :181-197
[2]  
BOWENKATARI JE, 1994, J PHYS CHEM-US, V98, P4109
[3]   Size dependence of structural metastability in semiconductor nanocrystals [J].
Chen, CC ;
Herhold, AB ;
Johnson, CS ;
Alivisatos, AP .
SCIENCE, 1997, 276 (5311) :398-401
[4]   Applications of the Karhunen-Loeve decomposition to quantum dynamical problems [J].
Dietz, H ;
Marek, M ;
Münster, AF ;
Engel, V .
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS, 2002, 216 :291-303
[5]   The kinetics of growth of semiconductor nanocrystals in a hot amphiphile matrix [J].
Dushkin, CD ;
Saita, S ;
Yoshie, K ;
Yamaguchi, Y .
ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2000, 88 (1-2) :37-78
[6]   Chemical instability induced by an electric field [J].
Fecher, F ;
Schneider, FW ;
Münster, AF .
JOURNAL OF PHYSICAL CHEMISTRY A, 2000, 104 (38) :8715-8722
[7]   PHOTOCHEMISTRY OF COLLOIDAL SEMICONDUCTORS .30. HPLC INVESTIGATION OF SMALL CDS PARTICLES [J].
FISCHER, CH ;
WELLER, H ;
KATSIKAS, L ;
HENGLEIN, A .
LANGMUIR, 1989, 5 (02) :429-432
[8]  
FOJTIK A, 1984, BER BUNSEN PHYS CHEM, V88, P969, DOI 10.1002/bbpc.19840881010
[9]  
Fukunaga K., 1990, INTRO STAT PATTERN R
[10]   SIZE CONTROL AND PROPERTIES OF THIOL CAPPED CDS PARTICLES [J].
HAYES, D ;
MEISEL, D ;
MICIC, OI .
COLLOIDS AND SURFACES, 1991, 55 :121-136