ISBN 9783843903295

978-3-8439-0329-5, Reihe Physikalische Chemie

Zhe Wang
Synthesis and Characterization of Semiconductor Nanowires grown by the Solution-Liquid-Solid Method

110 Seiten, Dissertation Universität Hamburg (2011), Softcover, A5

Zusammenfassung / Abstract

Semiconductor NWs with type-I and type-II structures prepared by solution-based methods are relatively new nanoscale materials. This thesis describes the synthesis of semiconductor nanowires (NWs) based on solution-liquid-solid (SLS) method, and characterization of their structural, optical and electronic properties.

Firstly, CdSe NWs were prepared using CdSe clusters as precursors in SLS process. Compared with the result of traditional molecular precursors, thinner NWs were obtained. When cluster and molecular precursors from different materials were mixed as co-precursors, NWs with tips containing only the material of cluster precursors were generated. These clusters are assumed as nuclei in the beginning stage of NW growth. A mixed structure of wurtzite and zincblende phases was observed in CdSe NW. Using similar procedures, CdTe NWs were prepared with different precursors.