材料科学
拉曼光谱
拉曼散射
激子
红外线的
纳米晶
蓝移
红移
吸收（声学）
散射
带隙
频移
光学
光电子学
凝聚态物理
光致发光
纳米技术
物理
复合材料
银河系
量子力学
作者
Yijun Yang,Chunrui Wang,Junqing Hou,Jianming Dai
标识
DOI：10.1016/s0167-577x(02)01171-0
摘要
The optical properties of BiI3 nanocrystallites have been investigated by Raman scattering, far infrared spectrum and UV–vis absorption at room temperature. The Raman and far infrared spectrum of the BiI3 nanocrystallites have a shift in comparison with that of the BiI3 single crystals. The shift is mainly attributed to nanosize effect. The first exciton peak of BiI3 nanocrystallites is a slight blue shift in comparison with the band gap of the bulk materials.
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