IN-SITU SYNCHROTRON-RADIATION SMALL-ANGLE X-RAY-SCATTERING STUDY OF THE KINETICS OF GROWTH OF CDTE NANOCRYSTALS IN BOROSILICATE GLASS

被引：8

作者：

CRAIEVICH, AF

ALVES, OL

BARBOSA, LC

机构：

[1] UNIV SAO PAULO,INST FIS,SAO PAULO,BRAZIL

[2] UNICAMP,INST QUIM,QUIM ESTADO SOLIDO LAB,CAMPINAS,BRAZIL

[3] UNICAMP,INST FIS,CAMPINAS,BRAZIL

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1995年 / 66卷 / 02期

关键词：

D O I：

10.1063/1.1146472

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A number of isolator-semiconductor nanocrystal composites exhibit quantum confinement effects and nonlinear optical properties. In this work, the formation and growth of CdTe and CdTe0.9S0.1 nanocrystals immersed in a borosilicate glass host matrix were studied by small-angle x-ray scattering using synchrotron radiation during in situ annealing in the 560-580°C temperature range. The values of the average radii of the CdTe nanocrystals determined by using Guinier plots for different annealing times (20-30 Å) agree with those obtained from optical absorption spectroscopy measurements. The nanocrystal size distribution depends on the thermal history and composition of the samples. The existence of other structural heterogeneities having an average size of several hundred ångstroms was detected. © 1995 American Institute of Physics.

引用

页码：1338 / 1341

页数：4

共 8 条

[1]

BAGNATO O, LNLS0392 TECHN REP

[2]

CRAIEVICH AF, 1993, J PHYS-PARIS, V8, P373

[3]

EFROS AE, 1985, J OPT SOC AM B, V2, P1155

[4]

EKIMOV AI, 1982, SOV PHYS SEMICOND, V16, P772

[5]

Guinier G., 1955, SMALL ANGLE SCATTERI

[6] QUANTUM SIZE EFFECTS ON CDTEXS1-X SEMICONDUCTOR-DOPED GLASS [J].

NETO, JAM ;

BARBOSA, LC ;

CESAR, CL ;

ALVES, OL ;

GALEMBECK, F .

APPLIED PHYSICS LETTERS, 1991, 59 (21) :2715-2717

[7]

NETO JAM, 1991, CERAM T, V20, P161

[8]

NOGANI M, 1992, SOL GEL OPT, V1758, P557

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