Colloidal Synthesis of Germanium Nanorods

被引：48
作者：
Chockla, Aaron M.
Harris, Justin T.
Korgel, Brian A. [1 ]
机构：
[1] Univ Texas Austin, Dept Chem Engn, Texas Mat Inst, Austin, TX 78712 USA
来源：
CHEMISTRY OF MATERIALS | 2011年 / 23卷 / 07期
关键词：
germanium; nanorods; colloids; nanomaterials; solution-liquid-solid growth; SOLUTION-PHASE SYNTHESIS; SOLUTION-BASED STRAIGHT; QUANTUM RODS; CDSE NANOCRYSTALS; OXIDE NANOSTRUCTURES; ORIENTED-ATTACHMENT; OPTICAL-PROPERTIES; PBSE NANOWIRES; SHAPE CONTROL; GROWTH;
D O I：
10.1021/cm2001607
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：
A colloidal synthesis of crystalline germanium (Ge) nanorods is reported. Diphenylgermane (DPG) is decomposed in a high boiling solvent in the presence of bismuth (Bi) nanocrystals and trioctylphosphine oxide (TOPO). The Bi nanocrystals induce solution liquid solid (SLS) growth of the Ge nanorods, and TOPO serves as a capping ligand to prevent aggregation. The resulting nanorods are crystalline, predominantly growing in the < 111 > crystallographic direction, with an average diameter of 10 nm. The average length could be varied from 60 to 170 rim by decreasing the ratio of Bi to Ge in the reaction. The addition of poly(vinylpyrrolidinone)/hexadecene (PVP/HDE) copolymer led to branched nanorods.
引用
收藏
页码：1964 / 1970
页数：7
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