QQ客服 官方微博 反馈留言

浏览/检索结果: 共2条，第1-2条 帮助 限定条件 发表日期：2005    内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Investigation of growth mode in ZnO thin films prepared at different temperature by plasma-molecular beam epitaxy (EI CONFERENCE) 会议论文 13th International Conference on Molecular Beam Epitaxy, August 22, 2004 - August 27, 2004, 13th International Conference on Molecular Beam Epitaxy, August 22, 2004 - August 27, 2004 Liang H. W.; Lu Y. M.; Shen D. Z.; Yan J. F.; Li B. H.; Zhang J. Y.; Liu Y. C.; Fan X. W. 收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25 High-quality ZnO thin films on c-plane sapphire (Al2O 3) substrates were prepared by plasma-molecular beam epitaxy (P-MBE). The influence of growth temperature on growth mode of ZnO was investigated. Real-time monitored by reflection high-energy electron diffraction (RHEED) images show that  below 500 C  ZnO thin film was grown by three-dimension (3D) growth mode. While the two-dimension (2D) growth mode was obtained above growth temperature of 650 C. Atomic force microscopy (AFM) images present that the surface morphology of ZnO thin film with 2D growth is improved and X-ray rocking curves (XRC) indicate that the full width at half maximum (FWHM) of the ZnO (0 0 2) peak becomes narrow. From the photoluminescence (PL) spectra  ultraviolet (UV) emission peak exhibits obvious blue-shift for the samples grown at lower temperature  which is attributed to the effect of the quantum confinement arisen from small crystal grain sizes. The minimum carrier concentration of N=7.661016 cm-3 was obtained in the ZnO thin films with the 2D grown  which is closed to that of bulk ZnO. 2005 Elsevier B.V. All rights reserved.   Investigation of the bulk Nd60-xDyxFe30Al10 (x=0,2,5) amorphous alloys 会议论文 PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5 作者:  Xu, H[1];  Tan, XH[2];  Qi, NN[3];  Wang, Q[4];  Dong, YD[5] 收藏  |  浏览/下载：1/0  |  提交时间：2019/05/10 bulk amorphous alloys  microstructure  hard magnetic properties  Nd-based alloys