RESONANT RAMAN-SCATTERING FROM EXCITONS IN TIO2

被引：7

作者：

AMTOUT, A ^{[1
]}

LEONELLI, R ^{[1
]}

机构：

[1] UNIV MONTREAL,RECH PHYS & TECHNOL COUCHES MINCES GRP,MONTREAL H3C 3J7,QUEBEC,CANADA

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.46.15550

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report low-temperature resonant Raman scattering from excitons in single-crystal TiO2. From the selection rules, and from the position of the maximum of the scattering efficiency with respect to luminescence and absorption peaks, the resonance is attributed to the 2p(xy) exciton. These results support the symmetry band assignment of GAMMA1 and GAMMA3 to the conduction and valence bands, respectively, and confirm that the band gap of TiO2 is direct forbidden.

引用

页码：15550 / 15553

页数：4

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