Zhang Lihui, Yang Heqing, Li Li, Zhang Ruigang, Liu Ruini, Ma Junhu, Xie Xiaoli, Gao Fei
Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062, China.
Inorg Chem. 2008 Dec 15;47(24):11950-7. doi: 10.1021/ic801054e.
Nanosheets, nanobelts, and ultralong nanobelt arrays with honeycomb-like micropatterns of ZnSe were synthesized via a solvothermal reaction of Zn with Se and KBH(4) in ethylenediamine at 200 degrees C for 24 h and subsequent annealing. The control over these nanostructures with different morphologies was achieved by adjusting the KBH(4)/Se molar ratio. The role of KBH(4) in the formation of ZnSe(en)(0.5) nanobelts with different length-to-width ratios was investigated, and a possible mechanism was also proposed to account for the growth and conversion of these precursor nanostructures into ZnSe nanostructures. Current-voltage behaviors of the ultralong nanobelt arrays with honeycomb-like micropatterns were investigated. In addition, variable-aspect ratio ZnS nanosheets and nanowires were also synthesized by adjusting the KBH(4)/thiourea molar ratio in the Zn-thiourea-KBH(4)-ethylenediamine solvothermal system. The results suggest that this method may be employed for the controllable synthesis of other II-VI semiconductor nanostructures such as ZnTe, NiS, MnS, and so forth and provides opportunities for both fundamental research and technological applications.
通过锌与硒以及硼氢化钾（KBH₄）在乙二胺中于200℃下进行24小时的溶剂热反应并随后退火，合成了具有蜂窝状微图案的硒化锌纳米片、纳米带和超长纳米带阵列。通过调节KBH₄/硒的摩尔比实现了对这些不同形态纳米结构的控制。研究了KBH₄在形成具有不同长宽比的硒化锌（乙二胺）₀.₅纳米带中的作用，并提出了一种可能的机制来解释这些前驱体纳米结构生长并转化为硒化锌纳米结构的过程。研究了具有蜂窝状微图案的超长纳米带阵列的电流-电压行为。此外，通过调节锌-硫脲-KBH₄-乙二胺溶剂热体系中KBH₄/硫脲的摩尔比，还合成了可变纵横比的硫化锌纳米片和纳米线。结果表明，该方法可用于可控合成其他II-VI族半导体纳米结构，如碲化锌、硫化镍、硫化锰等，为基础研究和技术应用都提供了机会。
