X射线晶体学研究,低温1 H和13 C NMR研究以及27 Al NMR研究一系列均相的三环戊二烯基铝化合物[(C 5 H 5)3 Al(1),(MeC 5 H 4)3 Al (2),(1,2,4-Me 3 C 5 H 2)3 Al(3),(1,2,3,4-Me 4 C 5 H)3 Al(4)]与ab一起报告从头开始模型环戊二烯基铝化合物的计算。固态的三环戊二烯基铝化合物表现出的环配位几何形状随环戊二烯基环上甲基取代基的数量而变化。化合物的X射线晶体结构1揭示了在单元电池两个独特的分子,一个具有{η 2,η 1.5,η 1.5 }环的几何形状的组合,而另一个具有一个{η 2,η 1.5,η 1 }环配合几何的组合。在化合物的晶体结构3中,一个环戊二烯基环配位η 5至铝而其它两个环是η1。化合物4在固态下表现出所有三个四甲基取代的环戊二烯基环的单全配位。这些化合物在溶液中的流动性很高,并且在
Single-crystalline cubic MgZnO films and their application in deep-ultraviolet optoelectronic devices
作者:L. K. Wang、Z. G. Ju、J. Y. Zhang、J. Zheng、D. Z. Shen、B. Yao、D. X. Zhao、Z. Z. Zhang、B. H. Li、C. X. Shan
DOI:10.1063/1.3238571
日期:2009.9.28
By employing a relatively low growth temperature and oxygen-rich conditions, single-crystallinecubicMgZnOfilms were prepared. A solar-blind deep ultraviolet (DUV) photodetector was finished on the MgZnOfilm. The maximum responsivity of the photodetector is 396 mA/W at 10 V bias, which is almost three orders of magnitude larger than the highest value ever reported in MgZnO-based solar-blind photodetectors
Metal enhanced photoluminescence from Al-capped ZnMgO films: The roles of plasmonic coupling and non-radiative recombination
作者:Yanjie Wang、Haiping He、Yalin Zhang、Luwei Sun、Liang Hu、Kewei Wu、Jingyun Huang、Zhizhen Ye
DOI:10.1063/1.3693396
日期:2012.3.12
Aluminium (Al) enhanced emission is investigated by temperature-dependent photoluminescence (PL) fromZnMgOfilms grown by metal-organic chemical vapor deposition. The PL enhancement is sensitive to both the thickness of Al film and the temperature. The enhancement ratio increases from 3.5 to ∼51 when temperature decreases from room temperature to 20 K. Increased surface plasmon (SP) coupling and decreased