Al_xGa_(1-x)As/GaAs太阳电池MgF_2/ZnS双层减反射膜的研究

介绍了在AlGaAs/GaAs太阳电池上制备MgF_2/ZnS双层减反射膜的研究工作。引入了有效反射率R_e，并通过使R_e极小来实现减反射膜的优化设计，考虑了MgF_2/ZnS双层减反射膜与窗口层的耦合。实验上获得了良好的减反射膜，提高了AlGaAs/GaAs太阳电池的短路电流和效率，表明用R_e极小化来设计减反射膜是合理的。

静压下ZnS（0.02）Te（0.98）混晶的共振喇螺散射研究

于2010-11-23批量导入

Formation of ZnS clusters in xeolite-Y

于2010-11-23批量导入

Characterization of CdSe and CdSe/CdS core/shell nanoclusters synthesized in aqueous solution

CdSe nanoclusters overcoated with CdS shell were prepared with macapoacetic acid as stabilizer. The optical properties of CdSe nanoclusters and the influence of CdS shell on the electronic structures of CdSe cores were studied by optical absorption, photoluminescence (PL) and photoluminescence excitation (PLE) spectroscopies. Based on PL and PLE results and the theoretical calculation on fine structure of bandedge exciton, a model of formation of excimer within the small clusters was proposed to explain the large Stokes shift of luminescence from absorption edge observed in PL results. (C) 2000 Elsevier Science B.V. All rights reserved.