Raspite PbWO4nanobelts: synthesis and properties.

Autor: Chunhua Zheng, Chenguo Hu, Xueyan Chen, Hong liu, Yufeng Xiong, Jing Xu, Buyong Wan, Linyong Huang
Předmět:
Zdroj: CrystEngComm; Oct2010, Vol. 12 Issue 10, p3277-3282, 6p
Abstrakt: Raspite PbWO4, which is rare in nature, poses a great challenge to laboratory preparation and only limited optical and spectroscopic investigations have been conducted on raspite PbWO4crystals from nature. In this article, we report that raspite PbWO4nanobelts can be obtained by a facile composite-salt-mediated synthesis method without using any surface-capping agent. The nanobelts are well crystallized with lengths up to hundreds of microns. The synthesis method is simple and cost effective. Our investigation demonstrates that the raspite PbWO4nanobelts possess excellent blue–green luminescent property at low temperature and highly sensitive photocurrent response to light switches at room temperature. The growth mechanism of the raspite PbWO4nanobelts, the structure characteristic and the luminescent mechanism are discussed in detail. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index