SnSe Nanocrystals: Synthesis, Structure, Optical Properties, and Surface Chemistry

被引：269

作者：

Baumgardner, William J. ^{[1
]}

Choi, Joshua J. ^{[2
]}

Lim, Yee-Fun ^{[2
]}

Hanrath, Tobias ^{[3
]}

机构：

[1] Cornell Univ, Dept Chem & Chem Biol, Ithaca, NY 14853 USA

[2] Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA

[3] Cornell Univ, Sch Chem & Biomol Engn, Ithaca, NY 14853 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2010年 / 132卷 / 28期

关键词：

COLLOIDAL QUANTUM DOTS; ELECTRONIC-STRUCTURE; SHORT-CHAIN; PBSE; MONOCHALCOGENIDES; GENERATION; EFFICIENT; FILMS; SNTE;

D O I：

10.1021/ja1013745

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The colloidal synthesis of SnSe nanoparticles is accomplished through the injection of bis[bis(trimethylsilyl)amino]tin(II) into hot trioctylphosphine:selenium in the presence of oleylamine. Through the manipulation of reaction temperature particles are grown with the average diameter reliably tuned to 4-10 nm. Quantum confinement is examined by establishing a relationship between particle size and band gap while the in depth growth dynamics are illuminated through UV-vis-NIR spectroscopy. Surface chemistry effects are explored, including the demonstration of useful ligand exchanges and the development of routes toward anisotropic particle growth. Finally, transient current-voltage properties of SnSe nanocrystal films in the dark and light are examined.

引用

页码：9519 / 9521

页数：3

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