Effect of quantum confinement on acceptor state lifetime in Be δ doped GaAs/ AlAs multiple quantum wells 量子限制效应对δ掺杂GaAs/AlAs多量子阱中铍受主态寿命的影响
Investigation on Yb-Doped ( Ba, Sr) TiO_3 PTCR Materials ⅰ. Calculation on Acceptor State Density Yb掺杂(Ba,Sr)TiO3系PTCR材料的研究Ⅰ.表面受主态密度的计算
The formation of grain-boundary acceptor state, due to the substitution of Sr2+ ion on grain surface by the diffused Ag+ ion during the oxidizing annealing, plays an important role in the generation of Schottky barrier and resultant multifunction effect. 氧化热处理过程中Ag+离子低价取代晶粒表面的Sr2+离子而形成晶界受主态,是产生晶界Schottky势垒及复合功能效应的重要原因。
The relation of nonlinear coefficient a in proportion to the voltage at grain boundary was induced theoretically, and related to distributing function of acceptor state density in the grain boundary. 从理论上推导出了非线性系数α正比于晶界电压,且与晶界受主态的分布函数有密切关系。
The Sr2+ mainly distributes in grain boundary areas, which behaves as an interface acceptor state and so influences on the electric properties of varistor markedly. 而Sr2+主要分布在晶粒边界处,对表面受主态及材料相关电学性能有重要影响;
It was first confirmed by experiments that the chemisorbed ionic oxygen was one kind of acceptor state in grain boundaries. 第一次从实验上证实了化学吸附氧是晶界受主志之一。
By using tributyl Phosphate ( TBP) as an energy acceptor, G value of lowest excited singlet state of cyclohexane has been determined under γ irradiation. 以磷酸三丁酯为激发分子清除剂,测定了γ辐照下环己烷最低激发单态的G值,并与Lipsky的荧光光谱法的结果进行了比较。
Study on the degradation induced by acceptor interface state for deep-sub-micron grooved-gate pmosfet's 受主型界面态在深亚微米槽栅PMOSFET中引起退化的研究
Secondly, this dissertation uses knowledge of information theory, interpretation theories and acceptance aesthetic make some special studies on architecture information, acceptor and communicator, and analyses their state and effect in the communication process deeply. 其次,论文还运用信息学、解释学和接受美学等方法对建筑信息、受众以及传播者进行专项研究,深入分析了每一个环节在传播过程中的地位与作用。