半导体学报2006，Vol.27Issue(12)：2094-2100,7.
CdSe量子棒的线偏振光学性质
Linear-Polarization Optical Property of CdSe Quantum Rods
摘要
Abstract
The linear-polarization optical property of CdSe quantum rods is studied in the framework of effective-mass envelope function theory.The effects of shape and magnetic field on the linear polarization factors are investigated.It is found that CdSe quantum spheres have negative polarization factors (xy-polarized emission)and quantum long rods with small radius have positive linear polarization factors (z-polarized emission).The z-direction is the direction of the c axis.Quantum long rods with large radius have negative linear polarization factors,due to the hexagonal crystal symmetry and the crystal field splitting energy.The linear polarization factors decrease and may change from a positive value to a negative value;i.e.,the z-polarized emissions decrease relative to xy-polarized emissions as the magnetic field applied along the z direction increases.关键词
量子棒/线偏振/CdSeKey words
quantum rods/linear polarization/CdSe分类
数理科学引用本文复制引用
张秀文,夏建白..CdSe量子棒的线偏振光学性质[J].半导体学报,2006,27(12):2094-2100,7.基金项目
Project supported by the National Natural Science Foundation of China(No.90301007)and the Special Funds for National Key Basic Research Plan of China(No.G001CB3095)国家自然科学基金(批准号:90301007)和国家重点基础研究专项基金(批准号:G001CB3095)资助项目 （No.90301007）
