SIZE DEPENDENCE OF THE SOLID-SOLID PHASE-TRANSITION IN CDSE NANOCRYSTALS

被引：44

作者：

TOLBERT, SH

ALIVISATOS, AP

机构：

[1] Department of Chemistry, University of California at Berkeley, Berkeley, 94720, CA

来源：

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS | 1993年 / 26卷 / 1-4期

关键词：

D O I：

10.1007/BF01429106

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

High pressure optical absorption spectra are presented for CdSe nanocrystals as a function of size. The spectra show a transition to a high pressure Rock Salt type phase at pressure greatly elevated from the bulk. The size dependence of the transition pressure can be explained in part by an increased surface tension in the Rock Salt phase relative to the low pressure tetrahedral phase.

引用

页码：56 / 58

页数：3

共 8 条

[1] RESONANCE RAMAN-SCATTERING AND OPTICAL-ABSORPTION STUDIES OF CDSE MICROCLUSTERS AT HIGH-PRESSURE [J].