中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共7条，第1-7条

帮助

条数/页：排序方式：
	湛江结构性黏土自钻旁压试验的加载速率效应期刊论文 OAI收割岩土力学, 2021, 卷号: 42, 期号: 6, 页码: 1557 作者: 舒荣军; 孔令伟; 师文卓; 刘炳恒; 黎澄生 \| 收藏 \| 浏览/下载：1/0 \| 提交时间：2025/06/27 structured clay self-boring pressuremeter test super mini-penetration test rate effects shear modulus G-γ decay curves 结构性黏土自钻旁压试验超微型贯入试验速率效应剪切模量 G-γ衰减曲线
	Estimating the number of components in an OSL decay curve using the Bayesian Information Criterion 期刊论文 OAI收割 GEOCHRONOMETRIA, 2014, 卷号: 41, 期号: 4, 页码: 334-341 作者: Peng, Jun; Dong, Zhibao; Han, Fengqing; Han, Yuanhong; Dai, Xueling \| 收藏 \| 浏览/下载：31/0 \| 提交时间：2018/09/26 OSL decay curves number of components Bayesian Information Criterion
	Estimating the number of components in an OSL decay curve using the Bayesian Information Criterion 期刊论文 OAI收割 GEOCHRONOMETRIA, 2014, 卷号: 41, 期号: 4, 页码: 334-341 作者: Peng, Jun; Dong, Zhibao; Han, Fengqing; Han, Yuanhong; Dai, Xueling \| 收藏 \| 浏览/下载：46/0 \| 提交时间：2018/09/26 OSL decay curves number of components Bayesian Information Criterion
	Estimating the number of components in an OSL decay curve using the Bayesian Information Criterion 期刊论文 OAI收割 GEOCHRONOMETRIA, 2014, 卷号: 41, 期号: 4, 页码: 334-341 作者: Peng, Jun; Dong, Zhibao; Han, Fengqing; Han, Yuanhong; Dai, Xueling \| 收藏 \| 浏览/下载：40/0 \| 提交时间：2018/06/20 Osl Decay Curves Number Of Components Bayesian Information Criterion
	Efficient energy transfer from the Pr3+ 4f5d states to Eu3+ via Gd3+ in K2GdF5 期刊论文 OAI收割 JOURNAL OF LUMINESCENCE, 2014, 卷号: 145, 页码: 620-625 作者: Shi, QF; You, FT; Xie, DN; Peng, HS; Huang, Y 收藏 \| 浏览/下载：20/0 \| 提交时间：2016/04/08 Vacuum ultraviolet Energy transfer Decay curves Rare earth Simulation
	Effect of interface on luminescence properties in ZnO/MgZnO heterostructures (EI CONFERENCE) 会议论文 OAI收割 Wei Z. P.; Lu Y. M.; Shen D. Z.; Wu C. X.; Zhang Z. Z.; Zhao D. X.; Zhang J. Y.; Fan X. W. 收藏 \| 浏览/下载：32/0 \| 提交时间：2013/03/25 A set of ZnO/MgZnO heterostructures with well widths Lw varying from 2 to 20 nm has been grown by plasma-assisted molecular-beam epitaxy (P-MBE). We present a room-temperature (RT) study of the well-width-dependent photoluminescence (PL) spectra and carrier lifetimes in ZnO/MgZnO heterostructures. Bi-exponential process is seen at RT time-decay curves of the luminescence from the well layers. The fast process is from the recombination of the free exciton while the slow process is attributing to the recombination of the localized exciton in the interface of ZnO and MgZnO. It is also confirmed from the PL peak shift of time-resolved PL spectra. With decreasing the well thickness the fast process gradually increases and dominantly contributes to the PL spectrum due to the interface improvement. 2006 Elsevier B.V. All rights reserved.
	Energy transfer and red phosphorescence in strontium aluminates doped with Cr3+, Eu2+ and Dy3+ (EI CONFERENCE) 会议论文 OAI收割 Dielectrics in Emerging Technologies -and- Persistent Phosphors - International Symposia, May 15, 2005 - May 20, 2005, Quebec City, QC, Canada 作者: Wang X.; Wang X.; Wang X.; Zhang X.; Zhang X. 收藏 \| 浏览/下载：34/0 \| 提交时间：2013/03/25 Cr3+ activated red (694 nm) long persistent phosphorescence originating from 2E-4A2 transition is observed in 4SrO·7Al2O3: Cr3+ Eu2+ Dy3+ system. It is demonstrated that the red phosphorescence is resulted from the conversion of Eu2+ activated blue phosphorescence through persistence energy transfer from Eu2+ to Cr3+. The excitation spectra of the 694 nm emission exhibit strong f-d band of Eu 2+ indicating the existence of the energy transfer. The dependence of lifetimes and intensities of the red and blue emissions on Cr3+ concentrations are studied. The intensity ratio of the red to blue emission bands obtained from photoluminescence spectra is in good agreement with that obtained from fluorescence lifetime measurements. The decay curves of the red phosphorescence at 694nm are also studied.