Bi_2O_3–B_2O_3二元系统玻璃的网络结构形成与光学性能研究  

Vitreous Network Formation and Optical Characteristics of Glasses Within Bi_2O_3–B_2O_3 Binary System

作　　者：成俊雯[1,2] 陈飞飞[1,2] 戴世勋[1,2] 许银生[2] 谭瑞琴[1,2] 

机构地区：[1]宁波大学信息科学与工程学院,浙江宁波315211 [2]宁波大学红外材料及器件实验室,浙江宁波315211

出　　处：《硅酸盐学报》2013年第4期475-479,共5页Journal of The Chinese Ceramic Society

基　　金：国家科技部重大国际合作项目(2001DFA12040);国家"973"计划(2012CB722703);教育部新世纪优秀人才计划项目(NCET-10-0976);浙江省杰出青年科学基金项目(R1101263);浙江省自然基金项目(LQ12F05003);宁波大学王宽诚幸福基金

摘　　要：采用高温熔融–退火法制备了一系列Bi2O3–B2O3二元系统玻璃,系统研究了不同Bi/B摩尔比下B2O3和Bi2O3在玻璃网络结构中的竞争机制,重点探讨了组成对铋酸盐玻璃光学和结构性能的影响。通过吸收光谱和Raman光谱分析了Bi2O3–B2O3二元系统玻璃的网络形成机理,测试了玻璃的密度和线性折射率。结果表明:Bi3+和B3+均为玻璃网络形成体,Raman光谱以600cm–1为中心,其附近的Raman信号强度发生的有规律性变化:低能量区的Raman峰与玻璃中引入的铋离子有关,而高能区的Raman峰与玻璃中的硼氧结构体有关。A series of Bi2O3-B2O3 bismuthate glasses were prepared by melt-anneal method. We investigate the oxygen competi- tion mechanism between B2O3 and Bi2O3 with different Bi/B mole ratio, and mainly discuss the dependence of glass composition upon their structural and optical properties. The formation of vitreous network of Bi2O3-B2O3 binary glasses were analyzed by absorption and Raman spectra, and their density, refractive index were measured. The results show that both of Bi^3＋ and B^3＋ are glass formers; Raman intensity shows an evident variation centered at 600 cm^-1 Raman peaks in low-energy band are associated with bismuth ions introduced to the glass medium, while Raman peaks in high-energy band are associated with the boron-oxygen structures.

关 键 词：铋酸盐玻璃 折射率 光学带隙 RAMAN光谱 

分 类 号：O482[理学—固体物理] O614[理学—物理]