期刊
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
卷 120, 期 2, 页码 745-755出版社
SPRINGER
DOI: 10.1007/s00339-015-9252-7
关键词
-
资金
- National Project Research (PNR)
- LASPI2A Laboratory of Khenchela University (Algeria)
Pure and doped Zn1-x Mg (x) O films were deposited onto glass substrate by ultrasonic spray pyrolysis technique. The variation of lattice constant and the blue shift of near-band-edge emission indicate that Zn2+ ions are successfully substituted by Mg2+ ions within ZnO lattice. At higher Mg content (x a parts per thousand yen 0.21), a drastic change appears in the morphology, as a result of structural changes from wurtzite (ZnO) structure into a mixture of wurtzite and cubic (MgO) phases. FTIR study indicated the existence of distinct characteristic absorption peaks at similar to 442 cm(-1) for Zn-O stretching mode that shifted toward the red region with the increase in Mg content. In addition to the host phonons of ZnO, one additional band was observed around 523 cm(-1), presumably attributed to the Mg-related vibrational mode. The optical constants and thickness of thin films have been determined using experimental transmittance data. The luminescence intensity at 2.63 eV of Zn0.85Mg0.15O thin films was found to be approximately 13 times higher than that of pure ZnO film measured under the same excitation conditions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据