Probing the growth mechanism of self-catalytic lead selenide wires

被引：3

作者：

Afzaal, Mohammad ^{[3
]}

Ahmad, Kibriya ^{[1
,2
]}

O'Brien, Paul ^{[1
,2
]}

机构：

[1] Univ Manchester, Manchester Mat Sci Ctr, Manchester M13 9PL, Lancs, England

[2] Univ Manchester, Sch Chem, Manchester M13 9PL, Lancs, England

[3] King Fahd Univ Petr & Minerals, Ctr Res Excellence Renewable Energy, Dhahran 31261, Saudi Arabia

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 25期

基金：

英国工程与自然科学研究理事会;

关键词：

LIQUID-SOLID GROWTH; PBS; NANOWIRES; NANOSTRUCTURES; EVAPORATION; ARRAYS; CDS;

D O I：

10.1039/c2jm31840g

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：

Highly crystalline lead capped lead selenide wires are generated by using unusual growth conditions falling between CVD and CVT, using lead dialkyldithiocarbamate, grey selenium powder and Si/SiO2 (100) substrates. Various morphologies can be obtained by modifying the source temperature. Nucleation of highly faceted lead selenide wires from bulk lead selenide crystallites is explored and the possible growth mechanisms are given. A reduction in the energy of the surface exposed on the microcrystal is one factor that governs the unique growth characteristics of the one dimensional structure that evolves.

引用

页码：12731 / 12735

页数：5

共 42 条

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