Effects of intermediate semiconductor layers on carrier transport mechanisms through p-ZnSe/metals interfaces |
| |
Authors: | T Kagawa Yasuo Koide T Oku H Mori N Teraguchi Y Tomomura A Suzuki Masanori Murakami |
| |
Affiliation: | (1) Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, 606-501 Kyoto, Japan;(2) Central Research Laboratories, Sharp Corporation, Ichinomoto-cho, Tenri, 632 Nara, Japan;(3) Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, 606-8501 Kyoto, Japan |
| |
Abstract: | The effects of formation of intermediate semiconductor layers at p-ZnSe/metals interfaces on carrier transport mechanisms
were studied by comparing contacts prepared by the deposition and annealing (DA) technique or the molecular beam epitaxy (MBE)
technique. Current density vs voltage (J-V) curves of the MBE contact with a p-ZnSe/p-ZnTe superlattice intermediate layer
showed ohmic behavior. However, J-V curves of the DA contact with a ZnTe intermediate layer showed rectifying behavior. The
difference of the electrical properties between these two contacts was due to existence of a highly resistive intermediate
layer with highly dense defects in the DA contact and a low resistance p-type conductive intermediate layer with relatively
small densities of crystalline defects in the MBE contacts. From the present results, it was concluded that formation of the
highly resistive semiconductor layer with dense crystalline defects prevented the DA contact to transit from non-ohmic J-V
behavior to ohmic. |
| |
Keywords: | Contacts deposition and annealing technique p-ZnSe/metals |
本文献已被 SpringerLink 等数据库收录! |
|