Donor and acceptor concentrations in degenerate InN

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A formalism is presented to determine donor (N{sub D}) and acceptor (N{sub A}) concentrations in wurtzitic InN characterized by degenerate carrier concentration (n) and mobility ({mu}). The theory includes scattering not only by charged point defects and impurities, but also by charged threading dislocations, of concentration N{sub dis}. For an 0.45-{micro}m-thick InN layer grown on Al{sub 2}O{sub 3} by molecular beam epitaxy, having N{sub dis} = 5 x 10{sup 10} cm{sup -2}, determined by transmission electron microscopy, n(20 K) = 3.5 x 10{sup 18} cm{sup -3}, and {mu}(20 K) = 1055 cm{sup 2}/V-s, determined by Hall-effect measurements, the fitted values ... continued below

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13 pages

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Look, D.C.; Lu, H.; Schaff, W.J.; Jasinski, J. & Liliental-Weber, Z. January 28, 2002.

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Description

A formalism is presented to determine donor (N{sub D}) and acceptor (N{sub A}) concentrations in wurtzitic InN characterized by degenerate carrier concentration (n) and mobility ({mu}). The theory includes scattering not only by charged point defects and impurities, but also by charged threading dislocations, of concentration N{sub dis}. For an 0.45-{micro}m-thick InN layer grown on Al{sub 2}O{sub 3} by molecular beam epitaxy, having N{sub dis} = 5 x 10{sup 10} cm{sup -2}, determined by transmission electron microscopy, n(20 K) = 3.5 x 10{sup 18} cm{sup -3}, and {mu}(20 K) = 1055 cm{sup 2}/V-s, determined by Hall-effect measurements, the fitted values are N{sub D} = 4.7 x 10{sup 18} cm{sup -3} and N{sub A} = 1.2 x 10{sup 18} cm{sup -3}. The identities of the donors and acceptors are not known, although a comparison of N{sub D} with analytical data, and also with calculations of defect formation energies, suggests that a potential candidate for the dominant donor is H.

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13 pages

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OSTI as DE00837719

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  • Journal Name: Applied Physics Letters; Journal Volume: 80; Journal Issue: 2; Other Information: Submitted to Applied Physics Letters: Volume 80, No.2; Journal Publication Date: 01/14/2002

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  • Report No.: LBNL--49497
  • Grant Number: AC03-76SF00098
  • DOI: 10.1063/1.1432742 | External Link
  • Office of Scientific & Technical Information Report Number: 837719
  • Archival Resource Key: ark:/67531/metadc785300

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  • January 28, 2002

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  • Dec. 3, 2015, 9:30 a.m.

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  • April 4, 2016, 12:43 p.m.

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Look, D.C.; Lu, H.; Schaff, W.J.; Jasinski, J. & Liliental-Weber, Z. Donor and acceptor concentrations in degenerate InN, article, January 28, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc785300/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.