Electronic and mechanical properties of nanocrystalline composites when approaching molecular size

被引：62

作者：

Veprek, S

机构：

[1] Inst. for Chem. of Inorg. Materials, Technical University Munich, D-85747 Garching bei Munich

来源：

THIN SOLID FILMS | 1997年 / 297卷 / 1-2期

关键词：

electronic properties; mechanical properties; nanocrystals; superhard composites;

D O I：

10.1016/S0040-6090(96)09480-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Many physical, chemical and mechanical properties of solids change when the crystalline size decreases to 1-2 nm, which is the typical limit of the stability of the crystalline phase. We summarize the recent progress in the research on the optoelectronic properties of semiconductor nanocrystals (nc) with emphasis on nc-Si/a-SiO2 composites in which the surface of the silicon nanocrystals are passivated and the crystallites are separated by the oxide. The second part of the paper deals with the mechanical properties of novel superhard nanocrystalline/amorphous composites which hardness approaches that of diamond. (C) 1997 Elsevier Science S.A.

引用

页码：145 / 153

页数：9

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