物理学报2011，Vol.60Issue(9)：536-539,4.
m面蓝宝石上ZnO/ZnMgO多量子阱的制备及发光特性研究
Fabrication and optical properties of ZnO/ZnMgO multiple quantum wells on m-sapphire substrates
摘要
Abstract
The ZnO/Zn0.85Mg0.15O multiple quantum wells（MQWs）are fabricated on m-Al2O3 substrates by plasma-assisted molecular beam epitaxy （P-MBE） using a ZnMgO buffer layers. The reflection high-energy electron diffraction （RHEED） images indicate that the MQWs are of two-dimensional growth .The temperature dependent photoluminescence （PL） of the MQW also shows the quantum confine effect even at room temperature. The PL peak of 3nm MQW is 3.405 eV at 290 K.The PL spectrum in ZnO/Zn0.85Mg0.15O MQW is dominated by localized exciton emission at low temperatures, while the free exciton transition gradually dominates the spectrum at higher temperatures up to room temperature. The exciton binding energy in the 3 nm ZnO/Zn0.85Mg0.15O MQW is about 73 meV.关键词
等离子体辅助分子束外延/ZnO多量子阱/光致发光Key words
ZnO multiplies quantum well/P-MBE/PL分类
信息技术与安全科学引用本文复制引用
宿世臣,吕有明,梅霆..m面蓝宝石上ZnO/ZnMgO多量子阱的制备及发光特性研究[J].物理学报,2011,60(9):536-539,4.基金项目
国家自然科学基金 （）
广东省自然科学基金 （）
广东省育苗项目（批准号：LYM10063）资助的课题 （）
