Mechanism of current flow and temperature dependence of contact resistivity in Au-Pd-Ti-Pd-n⁺ -GaN ohmic contacts
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Mechanism of current flow and temperature dependence of contact resistivity in Au-Pd-Ti-Pd-n⁺ -GaN ohmic contacts
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| Creator |
Sachenko, A.V.
Belyaev, A.E. Boltovets, N.S. Kapitanchuk, L.M. Klad’ko, V.P. Konakova, R.V. Kuchuk, A.V. Korostinskay, T.V. Pilipchuk, A.S. Sheremet, V.N. Mazur, Yu.I. Ware, M.E. Salamo, G.J. |
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| Description |
We present the results of structural and morphological investigations of interactions between phases in the layers of Au-Pd-Ti-Pd-n⁺-GaN contact metallization that appear at rapid thermal annealing (RTA). It is shown that formation of ohmic contact occurs in the course of RTA at Т = 900°C due to formation of titanium nitride. We studied experimentally and explained theoretically the temperature dependence of contact resistivity ρс(Т) of ohmic contacts in the 4.2-380 K temperature range. The ρс(Т) curve was shown to flatten out in the 4.2-50 K range. As temperature grew, ρс decreased exponentially. The results obtained enabled us to conclude that current flow has field nature at saturation of ρс(Т) and the thermofield nature in the exponential part of ρс(Т) curve. |
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| Date |
2017-05-26T18:58:53Z
2017-05-26T18:58:53Z 2013 |
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| Type |
Article
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| Identifier |
Mechanism of current flow and temperature dependence of contact resistivity in Au-Pd-Ti-Pd-n⁺ -GaN ohmic contacts / A.V. Sachenko, A.E. Belyaev, N.S. Boltovets, L.M. Kapitanchuk, V.P. Klad’ko, R.V. Konakova, A.V. Kuchuk, T.V. Korostinskaya, A.S. Pilipchuk, V.N. Sheremet, Yu.I. Mazur, M.E. Ware, G.J. Salamo // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2013. — Т. 16, № 4. — С. 313-321. — Бібліогр.: 32 назв. — англ.
1560-8034 PACS 73.40.Cg, 73.40.Ns, 85.40.-e http://dspace.nbuv.gov.ua/handle/123456789/117817 |
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| Language |
en
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| Relation |
Semiconductor Physics Quantum Electronics & Optoelectronics
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| Publisher |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
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