Publications

Found 301 results
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2003
Yu, E. T., Y. Arakawa, A. Rizzi, and J. S. Speck, Symposium L: GaN and Related Alloys: DTIC Document, 2003.
2002
Waltereit, P., AE. Romanov, and JS. Speck, "Electronic properties of GaN induced by a subsurface stressor", Applied physics letters, vol. 81, no. 25: AIP, pp. 4754–4756, 2002.
Davis, R. F., A. M. Roskowski, E. A. Preble, J. S. Speck, B. Heying, J. A. Freitas, EVAN. R. Glaser, and WILLIAM. E. Carlos, "Gallium nitride materials-progress, status, and potential roadblocks", Proceedings of the IEEE, vol. 90, no. 6: IEEE, pp. 993–1005, 2002.
Hierro, A., AR. Arehart, B. Heying, M. Hansen, UK. Mishra, SP. DenBaars, JS. Speck, and SA. Ringel, "Impact of Ga/N flux ratio on trap states in n-GaN grown by plasma-assisted molecular-beam epitaxy", Applied physics letters, vol. 80, no. 5: AIP, pp. 805–807, 2002.
Andrews, AM., JS. Speck, AE. Romanov, M. Bobeth, and W. Pompe, "Modeling cross-hatch surface morphology in growing mismatched layers", Journal of applied physics, vol. 91, no. 4: AIP, pp. 1933–1943, 2002.
Ullrich, A., W. Pompe, J. S. Speck, and AE. Romanov, "Peculiarities of domain patterns in epitaxially grown ferroelectric thin films", Solid State Phenomena, vol. 87: Trans Tech Publications, pp. 245–254, 2002.
McCarthy, LS., IP. Smorchkova, P. Fini, MJW. Rodwell, J. Speck, SP. DenBaars, and UK. Mishra, "Small signal RF performance of AlGaN/GaN heterojunction bipolar transistors", Electronics Letters, vol. 38, no. 3: IET Digital Library, pp. 144–145, 2002.
2001
Hierro, A., AR. Arehart, B. Heying, M. Hansen, JS. Speck, UK. Mishra, SP. DenBaars, and SA. Ringel, "Capture Kinetics of Electron Traps in MBE-Grown n-GaN", physica status solidi (b), vol. 228, no. 1: WILEY-VCH Verlag Berlin GmbH Berlin, pp. 309–313, 2001.
Hierro, A., M. Hansen, L. Zhao, JS. Speck, UK. Mishra, SP. DenBaars, and SA. Ringel, "Carrier Trapping and Recombination at Point Defects and Dislocations in MOCVD n-GaN", physica status solidi (b), vol. 228, no. 3: WILEY-VCH Verlag Berlin GmbH Berlin, pp. 937–946, 2001.
A Andrews, M., JS. Speck, AE. Romanov, M. Bobeth, and W. Pompe, "Development of cross-hatch morphology during growth of lattice mismatched layers", MRS Online Proceedings Library Archive, vol. 673: Cambridge University Press, 2001.
McCarthy, L., I. Smorchkova, H. Xing, P. Fini, S. Keller, J. Speck, SP. DenBaars, MJW. Rodwell, and UK. Mishra, "Effect of threading dislocations on AlGaN/GaN heterojunction bipolar transistors", Applied Physics Letters, vol. 78, no. 15: AIP, pp. 2235–2237, 2001.
Romanov, AE., GE. Beltz, WT. Fischer, PM. Petroff, and JS. Speck, "Elastic fields of quantum dots in subsurface layers", Journal of applied physics, vol. 89, no. 8: AIP, pp. 4523–4531, 2001.
McCarthy, L. S., I. P. Smorchkova, H. Xing, P. Kozodoy, P. Fini, J. Limb, D. L. Pulfrey, J. S. Speck, M. J. W. Rodwell, SP. DenBaars, et al., "GaN HBT: toward an RF device", IEEE Transactions on Electron Devices, vol. 48, no. 3: IEEE, pp. 543–551, 2001.
Olson, GL., JA. Roth, TJ. de Lyon, JE. Jensen, and JS. Speck, Heteroepitaxy on Compliant Substrates for Vertical and Horizontal Integration of Multi-Functional Devices: DTIC Document, 2001.
Mathis, SK., AE. Romanov, LF. Chen, GE. Beltz, W. Pompe, and JS. Speck, "Modeling of threading dislocation reduction in growing GaN layers", Journal of crystal growth, vol. 231, no. 3: North-Holland, pp. 371–390, 2001.
Hierro, A., AR. Arehart, B. Heying, M. Hansen, JS. Speck, UK. Mishra, SP. DenBaars, and SA. Ringel, "Papers presented at the Fourth International Conference on Nitride Semiconductors (ICNS-4) Denver, Colorado, USA, July 16-20, 2001 (Part B. 1)-Point defects and impurities in GaN-Capture Kinetics", Physica Status Solidi-B-Basic Research, vol. 228, no. 1: Berlin: Akademie-Verlag, 1971-, pp. 309–314, 2001.
2000
Heying, B., R. Averbeck, LF. Chen, E. Haus, H. Riechert, and JS. Speck, "Control of GaN surface morphologies using plasma-assisted molecular beam epitaxy", Journal of Applied Physics, vol. 88, no. 4: AIP, pp. 1855–1860, 2000.
Hierro, A., D. Kwon, SA. Ringel, M. Hansen, UK. Mishra, SP. DenBaars, and JS. Speck, "Deep levels in n-type Schottky and p+-n homojunction GaN diodes", Materials Research Society Internet Journal of Nitride Semiconductor Research, vol. 5, no. S1: Cambridge University Press, pp. 922–928, 2000.
McCarthy, L., Y. Smorchkova, P. Fini, H. Xing, M. Rodwell, J. Speck, S. DenBaars, and U. Mishra, "HBT on LEO GaN", Device Research Conference, 2000. Conference Digest. 58th DRC: IEEE, pp. 85–86, 2000.
Hierro, A., SA. Ringel, M. Hansen, JS. Speck, UK. Mishra, and SP. DenBaars, "Hydrogen passivation of deep levels in n–GaN", Applied Physics Letters, vol. 77, no. 10: AIP, pp. 1499–1501, 2000.
Mathis, SK., AE. Romanov, LF. Chen, GE. Beltz, W. Pompe, and JS. Speck, "Modeling of threading dislocation reduction in growing GaN layers", Physica Status Solidi A Applied Research, vol. 179, no. 1: ACADEMIC VERLAG GMBH, pp. 125–146, 2000.
Hierro, A., D. Kwon, SA. Ringel, M. Hansen, JS. Speck, UK. Mishra, and SP. DenBaars, "Optically and thermally detected deep levels in n-type Schottky and p+-n GaN diodes", Applied Physics Letters, vol. 76, no. 21: AIP, pp. 3064–3066, 2000.
Romanov, AE., and JS. Speck, "Relaxation enhancing interlayers (REIs) in threading dislocation reduction", Journal of Electronic Materials, vol. 29, no. 7: Springer-Verlag, pp. 901–905, 2000.
Heying, B., R. Averbeck, LF. Chen, E. Haus, H. Riechert, and JS. Speck, "STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER (PACS 61-68, 78)-Control of GaN surface morphologies using plasma-assisted molecular beam epitaxy", Journal of Applied Physics, vol. 88, no. 4: New York, NY: American Institute of Physics, c1937-, pp. 1855–1860, 2000.
Zhao, L., JS. Speck, R. Rajavel, J. Jensen, D. Leonard, T. Strand, and W. Hamilton, "Transmission electron microscopy studies of defects in HgCdTe device structures grown by molecular beam epitaxy", Journal of Electronic Materials, vol. 29, no. 6: Springer-Verlag, pp. 732–735, 2000.

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