Zobrazeno 1 - 10
of 127
pro vyhledávání: '"T. J. Drummond"'
Publikováno v:
Journal of Electronic Materials. 28:1466-1470
Degenerately doped n-type GaAs produces band-to-band luminescence with the peak energy dependent on the carrier concentration. In this study the photoluminescence of Si-doped GaAs is examined after implantation with high energy Be ions and annealing.
Autor:
T. J. Drummond
Publikováno v:
Physical Review B. 59:8182-8194
Schottky barrier heights on {ital n}-type GaAs can be made to vary from 0.30 to 1.20 eV by adjusting the conditions under which the Schottky contact is fabricated. To explain the observed trends it is asserted (a) that there are several defect pinnin
Autor:
Vincent M. Hietala, T. J. Drummond, Stephen A. Casalnuovo, Gregory C. Frye-Mason, J.F. Klem, Edwin J. Heller, Albert G. Baca
Publikováno v:
IEEE Journal of Solid-State Circuits. 34:1254-1258
An oscillator technology using surface acoustic wave (SAW) delay lines integrated with GaAs MESFET electronics has been developed for GaAs-based integrated microsensor applications. The oscillator consists of a two-port SAW delay line in a feedback l
Publikováno v:
Journal of Applied Physics. 80:2132-2137
Si‐implant activation characteristics in AlxGa1−xAs for Al compositions of 0%–70% AlAs are presented for doses of 5.6×1012 and 2.8×1013 cm−2 at 100 keV. For both doses, the effective activation efficiency (ηeff) is relatively constant from
Autor:
T. J. Drummond, M.E. Sherwin, D. J. Rieger, A. J. Howard, Randy J. Shul, Richard P. Schneider, John C. Zolper, Albert G. Baca, John F. Klem
Publikováno v:
Journal of Electronic Materials. 23:809-818
Zinc and magnesium implants into GaAs were profiled with secondary ion mass spectroscopy and etching capacitance-voltage to measure the as-implanted and annealed profiles for the eventual formation of shallow p+/n junction gates for junction field ef
Publikováno v:
Advances in X-ray Analysis. 38:201-213
Reciprocal space mapping can be efficiently carried out using a position-sensitive x-ray detector (PSD) coupled to a traditional double-axis diffractometer. The PSD offers parallel measurement of the total scattering angle of all diffracted x-rays du
Publikováno v:
Journal of Applied Physics. 69:717-721
The critical radius of a strained quantum wire and the potential strain stabilization of quantum wire arrays has been investigated for the InxGa1−xAs/GaAs system. The critical radius of the quantum wire was calculated using an energy balance approa
Autor:
Harold P. Hjalmarson, T. J. Drummond
Publikováno v:
Materials Science Forum. :1091-1096
Resonance states of impurities are shown to be long-lived if their coupling to the lattice is sufficiently large. The recombination of these states with band states is thermally activated which leads to extremely long lifetimes at low temperatures. S
Autor:
T. Suski, Rupert C. C. Perera, K. Lawniczak-Jablonska, Zuzanna Liliental-Weber, T. J. Drummond, James H. Underwood, Eric M. Gullikson
Publikováno v:
Applied Physics Letters. 70:2711-2713
The energy distribution of the nitrogen antibonding electron states in the hexagonal epitaxial layers of AlN, GaN, and InN and cubic epitaxial layers of GaN and InN along pxy plane and pz direction is reported. The study was performed by the polarize
Autor:
Hsiang-Chen Chui, T. J. Drummond, Robert Hull, B.E. Hammons, Kent M. Geib, Hong Q. Hou, Kent D. Choquette
Publikováno v:
Applied Physics Letters. 69:1385-1387
We report significant differences between the properties of buried oxides converted from AlGaAs and AlAs layers using selective wet oxidation. Layers of AlxGa1−xAs with x≥0.96 exhibit crystallographic dependent oxidation rates, while for layers w