【摘要】 本文首次报道了用非相干光时间延迟四波混频测量载流子复合时间的理论，实验证实了该理论的正确性，测得ＰｂＳ超微粒子和ＣｄＳ：Ｃｕ的载流子复合时间分别为１．５６ｎｓ和０．８ｎｓ更多还原

【Abstract】 Abstract We present a theory of measuring carrier recombination time using Time-Delayed Four-Wave Mixing with Incoherent Light. The expriments showed the validity of the theory. We obtained the carrier recombination time of PbS ultrafine particles and CdS:Cu. The investigation suggests that the decay time of the largeperiod grating is longer than that of the small one for PbS ultrafine particles in organosols and CdS:CU.更多还原