New dark current component of InGaAs/InP HPDs confirmed by DLTS

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The dark current of In0.47Ga0.53As/InP heterojunction photodiodes (HPDs)was analysed.We found that there exists a new dark current compo-nent-deep level-assisted tunneling current.DL TS was used to measure the In0.47Ga0.53As/InP HPDs .An electronic trap w
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