实验研究CdSeS量子点玻璃在一定电压下电流随时间的变化,分析量子点玻璃的电学非线性现象.得到CdSeS量子点玻璃的电学非线性系数与样品中量子点半径有关,当量子点半径较小或较大时,电学非线性系数都较大,当量子点半径居中时,电学非线性系数较小;另外,同一电压下CdSeS量子点玻璃的稳定电流与样品中量子点半径有关,当量子点半径较小或较大时,稳定电流较大,当量子点半径居中时,稳定电流较小.
Electrical nonlinear coefficient of CdSeS quantum dot glass was found to be bigger with smaller or bigger quantum dots.With intermediate radius,the coefficient was the smallest.In addition,the stable current under a given voltage was found to be bigger with smaller or bigger quantum dots,while it was the smallest with intermediate quantum dots.