Synthesis and microstructure of dot-, rod-, and tetrapod-shaped CdTe nanocrystals

Jiayu Zhang; Yiping Cui

doi:10.1117/12.570894

9 February 2005 Synthesis and microstructure of dot-, rod-, and tetrapod-shaped CdTe nanocrystals

Jiayu Zhang, Yiping Cui

Proceedings Volume 5635, Nanophotonics, Nanostructure, and Nanometrology; (2005) https://doi.org/10.1117/12.570894
Event: Photonics Asia, 2004, Beijing, China

Abstract

Colloidal II-VI semiconductor nanocrystals (NCs) are of increasing interest because of their potential applications as optoelectronic, photochemical, and nonlinear optical materials as well as biological labeling. The electronic and optical properties of these semiconductor NCs are controlled by their size, shape, surface, and surrounding environment. The capability to systematically manipulate the size and shape of the NCs remains an important goal of modern material science and technology. In this paper, we report the synthesis of colloidal dot-, rod- and tetrapod-shaped CdTe nanocrystals (NCs). The obtained NCs are characterized by transmission electron microscopy, Raman and X-ray diffraction spectra. Both the dot- and rod-shaped NCs are of zinc-blende phase whereas the tetrapod-shaped NCs are a mixture of zinc blende and wurtzite structures. It is proposed that the concentration of stacking faults forming during NCs' growth plays an important role in the geometry of CdTe NCs.

Citation Download Citation

Jiayu Zhang and Yiping Cui "Synthesis and microstructure of dot-, rod-, and tetrapod-shaped CdTe nanocrystals", Proc. SPIE 5635, Nanophotonics, Nanostructure, and Nanometrology, (9 February 2005); https://doi.org/10.1117/12.570894

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