β-BaB2O4纳米棒的沉淀法合成及其光学性质研究.pdfVIP

№．6 陕西科技大学学报 Dec．2007 · 1O· JOURNAL OF SHAANXI UNIVERSITY OF SCIENCE＆ TECHNOLOGY Vo1．25 文章编号：1000～5811(2007)06—0010—04 SYNTHESIS AND CHARACTERIZATION OF]~-BaB2 04 NANoRoDS VIA PRECIPITATIoN METHoD ， ZH0U Jie，SU Da—gen (Key Laboratory for Special Function Materials and Advanced Manufacturing Technology of Ministry of Edu— cation，South China University of Technology，Guangzhou 510640，China) Abstract：The nanorods Of barium borate( BaB2 O4)with high brightness were first prepared bv simple precipitation method with the assistance of PEG-400．Barium borate nanorods with a diameter of several tens of nanometers and a length of several tens Of microns were ob— tained．The soft—template growth mechanism for the formation of barium borate nanorods was discussed，and their optical properties were primary studied．Powder X—ray diffraction (XRD)and transmission electron microscope(TEM)tests were applied to investigate the composition，morphology and crystalline of the nanorods barium borate．Photoluminescence properties of barium borate nanorods were examined by FL．The as—synthesized BaB2 04 nanorods are promising materials for photoluminescence materials due to their excellent FL propertms· Key words：precipitation method；barium borate；nanorods；optical properties CLC Number：TB383 Document Code：A 0 Introduction One．dimensional(1D)structures，such as nanorods，nanotubes and nanowires have attracted inten— sive attention due to their potential applications in photoelectronic devices，advanced catalyst，data stor— age，etc．[1]and the understanding for the chemical and physical phenomena involving size～dependent propertie