Publications

Found 301 results
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2015
Nguyen, X. Sang, K. Lin, Z. Zhang, B. McSkimming, AR. Arehart, JS. Speck, SA. Ringel, E. A. Fitzgerald, and SJ. Chua, "Correlation of a generation-recombination center with a deep level trap in GaN", Applied Physics Letters, vol. 106, no. 10: AIP Publishing, pp. 102101, 2015.
Schrimpf, RD., DM. Fleetwood, ST. Pantelides, YS. Puzyrev, S. Mukherjee, RA. Reed, JS. Speck, and UK. Mishra, "Physical mechanisms affecting the reliability of GaN-based high electron mobility transistors", MRS Online Proceedings Library Archive, vol. 1792: Cambridge University Press, 2015.
Zhang, Z., AR. Arehart, ECH. Kyle, J. Chen, EX. Zhang, DM. Fleetwood, RD. Schrimpf, JS. Speck, and SA. Ringel, "Proton irradiation effects on deep level states in Mg-doped p-type GaN grown by ammonia-based molecular beam epitaxy", Applied Physics Letters, vol. 106, no. 2: AIP Publishing, pp. 022104, 2015.
Megalini, L., L. Y. Kuritzky, J. T. Leonard, R. Shenoy, K. Rose, S. Nakamura, J. S. Speck, D. A. Cohen, and S. P. DenBaars, "Selective and controllable lateral photoelectrochemical etching of nonpolar and semipolar InGaN/GaN multiple quantum well active regions", Applied Physics Express, vol. 8, no. 6: IOP Publishing, pp. 066502, 2015.
Galiano, K., D. Gleason, P. Krishna Paul, Z. Zhang, D. Cardwell, B. McSkimming, J. Speck, A. Arehart, S. Ringel, and J. Pelz, "Spatial Localization and Variation in Defect-Related Electron Traps in GaN Materials", Bulletin of the American Physical Society: APS, 2015.
Xue, J., Y. Zhao, S-H. Oh, W. F. Herrington, J. S. Speck, S. P. DenBaars, S. Nakamura, and R. J. Ram, "Thermally enhanced blue light-emitting diode", Applied Physics Letters, vol. 107, no. 12: AIP Publishing, pp. 121109, 2015.
2014
Hu, Y-L., E. Rind, and J. S. Speck, "Antiphase boundaries and rotation domains in In2O3 (001) films grown on yttria-stabilized zirconia (001)", Journal of Applied Crystallography, vol. 47, no. 1: International Union of Crystallography, pp. 443–448, 2014.
Sasikumar, A., AR. Arehart, SW. Kaun, J. Chen, EX. Zhang, DM. Fleetwood, RD. Schrimpf, JS. Speck, and SA. Ringel, "Defects in GaN based transistors", Gallium Nitride Materials and Devices IX, vol. 8986: International Society for Optics and Photonics, pp. 89861C, 2014.
Zhang, Z., C. M. Jackson, A. R. Arehart, B. McSkimming, J. S. Speck, and S. A. Ringel, "Direct Determination of Energy Band Alignments of Ni/Al 2 O 3/GaN MOS Structures Using Internal Photoemission Spectroscopy", Journal of electronic materials, vol. 43, no. 4: Springer US, pp. 828–832, 2014.
Woodward, N., R. Enck, C. S. Gallinat, L. E. Rodak, G. D. Metcalfe, J. S. Speck, H. Shen, and M. Wraback, "Evidence of lateral electric fields in c-plane III-V nitrides via terahertz emission", physica status solidi (c), vol. 11, no. 3-4: Wiley Online Library, pp. 686–689, 2014.
Linez, F., M. Ritt, C. Rauch, L. Kilanski, S. Choi, J. Räisänen, JS. Speck, and F. Tuomisto, "He implantation induced defects in InN", Journal of Physics: Conference Series, vol. 505, no. 1: IOP Publishing, pp. 012012, 2014.
Linez, F., M. Ritt, C. Rauch, L. Kilanski, S. Choi, J. Räisänen, JS. Speck, and F. Tuomisto, "He implantation induced defects in InN", Journal of Physics: Conference Series, vol. 505, no. 1: IOP Publishing, pp. 012012, 2014.
Linez, F., M. Ritt, C. Rauch, L. Kilanski, S. Choi, J. Räisänen, JS. Speck, and F. Tuomisto, "He implantation induced defects in InN", Journal of Physics: Conference Series, vol. 505, no. 1: IOP Publishing, pp. 012012, 2014.
Watanabe, K., T. Ohsawa, I. Sakaguchi, O. Bierwagen, M. E. White, M-Y. Tsai, R. Takahashi, E. M. Ross, Y. Adachi, J. S. Speck, et al., "Investigation of charge compensation in indium-doped tin dioxide by hydrogen insertion via annealing under humid conditions", Applied Physics Letters, vol. 104, no. 13: AIP, pp. 132110, 2014.
Koslow, I. L., M. T. Hardy, P. Shan Hsu, F. Wu, A. E. Romanov, E. C. Young, S. Nakamura, S. P. DenBaars, and J. S. Speck, "Onset of plastic relaxation in semipolar (112\= 2) InxGa1- xN/GaN heterostructures", Journal of Crystal Growth, vol. 388: North-Holland, pp. 48–53, 2014.
Wu, F., Y. Zhao, A. Romanov, S. P. DenBaars, S. Nakamura, and J. S. Speck, "Stacking faults and interface roughening in semipolar (20 2\= 1\=) single InGaN quantum wells for long wavelength emission", Applied Physics Letters, vol. 104, no. 15: AIP, pp. 151901, 2014.
Sasikumar, A., DW. Cardwell, AR. Arehart, J. Lu, SW. Kaun, S. Keller, UK. Mishra, JS. Speck, JP. Pelz, and SA. Ringel, "Toward a physical understanding of the reliability-limiting E C-0.57 eV trap in GaN HEMTs", Reliability Physics Symposium, 2014 IEEE International: IEEE, pp. 2C–1, 2014.
2013
Hsu, P. Shan, F. Wu, E. C. Young, A. E. Romanov, K. Fujito, S. P. DenBaars, J. S. Speck, and S. Nakamura, "Blue and aquamarine stress-relaxed semipolar (11 2\= 2) laser diodes", Applied Physics Letters, vol. 103, no. 16: AIP, pp. 161117, 2013.
Mazumder, B., M. Esposto, T. H. Hung, T. Mates, S. Rajan, and J. S. Speck, "Characterization of a dielectric/GaN system using atom probe tomography", Applied Physics Letters, vol. 103, no. 15: AIP, pp. 151601, 2013.
Preissler, N., O. Bierwagen, A. T. Ramu, and J. S. Speck, "Electrical transport, electrothermal transport, and effective electron mass in single-crystalline In 2 O 3 films", Physical Review B, vol. 88, no. 8: APS, pp. 085305, 2013.
Dasgupta, S., J. Lu, A. Raman, C. Hurni, G. Gupta, J. S. Speck, U. K. Mishra, and others, "Estimation of hot electron relaxation time in gan using hot electron transistors", Applied Physics Express, vol. 6, no. 3: IOP Publishing, pp. 034002, 2013.
Zhang, Z., AR. Arehart, E. Cinkilic, J. Chen, EX. Zhang, DM. Fleetwood, RD. Schrimpf, B. McSkimming, JS. Speck, and SA. Ringel, "Impact of proton irradiation on deep level states in n-GaN", Applied Physics Letters, vol. 103, no. 4: AIP, pp. 042102, 2013.
Jackson, C. M., A. R. Arehart, E. Cinkilic, B. McSkimming, J. S. Speck, and S. A. Ringel, "Interface trap characterization of atomic layer deposition Al2O3/GaN metal-insulator-semiconductor capacitors using optically and thermally based deep level spectroscopies", Journal of Applied Physics, vol. 113, no. 20: AIP, pp. 204505, 2013.
Das, NC., ML. Reed, AV. Sampath, H. Shen, M. Wraback, RM. Farrell, M. Iza, SC. Cruz, , NG. Young, et al., "Optimization of annealing process for improved InGaN solar cell performance", Journal of electronic materials, vol. 42, no. 12: Springer US, pp. 3467–3470, 2013.
Preissler, N., O. Bierwagen, A. T. Ramu, and J. S. Speck, "The Seebeck coefficient of In 2 O 3-Inferences on causes of unintentional conductivity and electron effective mass", Verhandlungen der Deutschen Physikalischen Gesellschaft, 2013.

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