Conductance mechanisms of CdTe-Hg0.53Cd0.47Te Interface

Xinchang Zhang, Guozhen Zheng, Yongsheng Gui, Shaoling Guo, Junhao Chu

Research output: Contribution to journalArticlepeer-review

Abstract

Capacitance-Voltage (C-V) and Conductance-Voltage (C-V) study of Hg0.53Cd0.47Te/CdTe interface is reported. The conductance peak at the onset of strong inversion for n-type Hg0.53CdTe0.47 MIS structure has been ascribed to indirect tunneling assisted by interface states. For p-type Hg0.53Cd0.47Te MIS structure, the oscillatory conductance in strong inversion region is caused by bulk trap assisted tunneling from 3D valence band to 2D subband of the inversion surface. This shows that tunneling for p-type MIS structure is insensitive to the interface states. From the generation-recombination conductance peaks in depletion region for p-type Hg0.53Cd0.47Te, conductance method is used to obtain the density, response time and capture cross-section of CdTe/HgCdTe interface states and their distributions in energy band gap.

Original languageEnglish
Pages (from-to)493-497
Number of pages5
JournalPan Tao Ti Hsueh Pao/Chinese Journal of Semiconductors
Volume19
Issue number7
StatePublished - 1998
Externally publishedYes

Fingerprint

Dive into the research topics of 'Conductance mechanisms of CdTe-Hg0.53Cd0.47Te Interface'. Together they form a unique fingerprint.

Cite this