机构

• 长春光学精密机械与物... [1]
• 数学与系统科学研究院 [1]

采集方式

• OAI收割 [2]

内容类型

• 会议论文 [1]
• 期刊论文 [1]

发表日期

• 2016 [1]
• 2011 [1]

学科主题

筛选

浏览/检索结果: 共2条，第1-2条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Time-varying latent model for longitudinal data with informative observation and terminal event times 期刊论文  OAI收割 SCIENCE CHINA-MATHEMATICS, 2016, 卷号: 59, 期号: 12, 页码: 2393-2410 作者:  Pei YanBo;  Du Ting;  Sun LiuQuan   |  收藏  |  浏览/下载：25/0  |  提交时间：2018/07/30 estimating equations  informative observation times  joint modeling  longitudinal data  terminal event  time-varying effect   Effect of thickness on the structural, electrical and optical properties of ZnO films deposited by MBE (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011, September 16, 2011 - September 18, 2011, Guangzhou, China Yang X.; Su S.; Yi X.; Mei T. 收藏  |  浏览/下载：25/0  |  提交时间：2013/03/25 A set of ZnO films of different thickness have been deposited on sapphire substrates using molecular beam epitaxy (MBE) by varying the growth time and the effect of film thickness on the structural  electrical and optical properties have been investigated. The X-ray diffraction (XRD) results indicate that the full width at half maximum (FWHM) of the (002) diffraction peak is decreased as the film thickness increasing  and the stress along c-axis is stable. Scanning electron microscope (SEM) measurement shows that the grains become more uniform as the film grows thicker and the film surface present distinct hexagon shape as the film is grown up to a thickness of 500nm. The optical absorbance  Hall mobility and photoluminescence (PL) intensity are increased in accordance with the thickness of the film. (2011) Trans Tech Publications  Switzerland.