Changes in Contact Angle of Seed Particle Correlated with Increased Zincblende Formation in Doped InP Nanowires

被引：84

作者：

Wallentin, Jesper ^{[1
]}

Ek, Martin ^{[1
]}

Wallenberg, L. Reine ^{[1
]}

Samuelson, Lars

Deppert, Knut

Borgstrom, Magnus T.

机构：

[1] Lund Univ, Polymer & Mat Chem nCHREM, S-22100 Lund, Sweden

来源：

NANO LETTERS | 2010年 / 10卷 / 12期

基金：

瑞典研究理事会;

关键词：

Nanowire; surface energy; doping; zincblende; wurtzite; III-V NANOWIRES; ZINC-BLENDE; GAAS NANOWIRES; GROWTH; SUPERLATTICES; NANOPARTICLES; MECHANISM; TENSION; METALS; ALLOYS;

D O I：

10.1021/nl101747z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanowires grown with the vapor-liquid-solid method commonly exhibit polytypism showing both zincblende and wurtzite crystal structure We have grown p type InP nanowires using DEZn as a dopant precursor and studied the wetting of the seed particle and the nanowire crystal structure The nanowires grown with high DEZn molar fractions exhibit deformed seed particles after growth We observe 20% smaller nanowire diameter at the highest DEZn molar fraction indicating a significant increase in contact angle of the seed particle during growth The decrease in diameter correlates with an increase in zincblende segment length as measured by TEM We explain the results with a modified nucleation model

引用

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页码：4807 / 4812

页数：6

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