Journal Papers
F. F. Shi, K. I. Chang, K. C. Hsieh, and L. Guido, "Interface Structure and Adhesion of Wafer-Bonded GaN/GaN and GaN/AlGaN Semiconductors," Journal of Applied Physics, vol. 95, pp. 909-912, 2004.

B. Gaffey, L.J. Guido, X.W. Wang, and T.P. Ma, "High-Quality Oxide/Nitride/Oxide Gate Insulator for GaN MIS Devices," IEEE Transactions on Electron Devices, Special Issue on Group III Nitride Electronics, 48 [3] 458-464 (2001).

N.B. Rex, R.K. Chang, and L.J. Guido, "Threshold Lowering in GaN Micropillar Lasers by Means of Spatially Selective Optical Pumping," IEEE Photon. Tech. Letter, 13, 1-3 (2001).

S.R. Jin, M. Ramsteinder, H.T. Grahn, K.H. Ploog, Z.Q. Zhu, D.X Shen, A.Z. Li, P. Mitev, and L.J. Guido, "Suppression of Yellow Luminescence in As-Doped GaN Epilayers Grown by Metalorganic Chemical Vapor Deposition," J. Cryst. Growth, 212, 56-60 (2000).

S. Chang, N. Rex, R.K. Chang, G. Chong, and L.J. Guido, "Stimulated Emission and Whispering Gallery Mode Lasing in GaN Microdisk Cavities," Appl. Phys. Lett., 75, 166-168 (1999).

T.Y. Zhang, S. Lee, L.J. Guido, and C.H. Hsueh, "Isotropic Elasticity Studies of a Misfit Dislocation in an Epilayer Deposited on a Substrate with a Finite Thickness," J. Appl. Phys., 85, 7579-7586 (1999).

Conference Proceedings

“Control and Measurement of Spin and Carrier Dynamics in Indium Arsenide Films,” Kanokwan Nontapot , Giti Khodaparast , Roger Welser, and Louis Guido, 2007 APS March Meeting (Session Y12: Spin Relaxation and Dynamics, Paper Y12.00008), Denver Colorado , March 5-9, 2007.

“Improvement of High-Power LED Performance using Low-Temperature Sintered Attachment,” Wang Tao , Guo-Quan Lu, Kevin Chern, Louis Guido, 9 th International IEEE CPMT Symposium on High Density Packaging and Microsystem Integration, Shanghai, China, June 26-28, 2007.

“Influence of Arsenic Isovalent Co-Doping on the Electronic Properties of N-type and P-type GaN Grown by Metal-Organic Chemical Vapor Deposition,” David Gray, Michael Willemann, Kai Zhang, Ali Hajjiah, Kevin Chern, Alex Aning , and Louis Guido, 2006 Electronic Materials Conference (Session KK: GaN Characterization, Paper KK7), Penn State University, June 28-30, 2006.

L. J. Guido, B. D. Dickerson, B. J. Heath, K. S. Stevens, C. R. Lutz, E. M. Rehder, and R. E. Welser, "GaInP/GaInAsN/GaAs N-p-N Bipolar Transistors: Influence of Base Layer Composition and Alloy Grading on Device Performance," International Conference on GaAs Manufacturing Technology, Scottsdale, Arizona, May 2003.

L. J. Guido, B. D. Dickerson, W. D. Houck, and D. T. Gray, "Influence of Arsenic Isoelectronic Co-Doping on the Electronic Properties of N- and P-type GaN," 30th International Symposium on Compound Semiconductors, San Diego, Calif., August 2003.

M. Gherasimova, R. G. Wheeler, L. J. Guido, K. L. Chang, and K. C. Hsieh, "Arsenic Incorporation Behavior in Nitrogen-Rich GaNAs Alloys Synthesized by Metalorganic Chemical Vapor Deposition," Materials Research Society Symposium, Boston, Mass., December 2003. Peer reviewed paper published in MRS Internet Journal of Nitride Semiconductor Research, 2003.

Invited Presentations/Papers

L.J. Guido, "Semiconductor Light Bulbs: The Future of General Purpose Lighting," Nanchang University, Nanchang, People's Republic of China, July 2004.

L.J. Guido, "Semiconductor Light Bulbs: The Future of General Purpose Lighting," IEEE Electron Device Society Distinguished Lecturer Program, IEEE Virginia Mountain Section Meeting, Blacksburg, Va., January 2004.

Submitted Presentations

N.B. Rex, R.K. Chang, and L.J. Guido, "Threshold Minimization and Directional Laser Emission From GaN Microdisks," SPIE Laser Resonators III, San Jose, Calif., January 2000.

L.J. Guido, P. Mitev, M. Gherasimova, B. Gaffey, M. Ahoujja, and Y.K. Yeo, "Isoelectronic Doping of Gallium Nitride with Arsenic," 6th Annual Wide Bandgap III-Nitride Workshop, Richmond, Va., March 2000.

Y.H. Kim, M. Ahoujja, Y.K. Yeo, R.L. Hengehold, L.J. Guido, and D.K. Johnstone, "Photocapacitance Transiente Study of Arsenic Doped Gallium Nitride," American Physical Society Annual Meeting, Minneapolis, Minn., March 2000.

N.B. Rex, R.K. Chang, L.J. Guido, D. Bour, and M. Kneissl, "Directional Laser emission from Chaotic Modes in Quadruple-deformed GaN Microdisks," CLEO/QELS, San Francisco, Calif., May 2000.

B. Gaffey, G. Chong, L.J. Guido, X.W. Wang, and T.P. Ma, "Electrical Characterization of Gallium Nitride MIS Capacitors with JVD Oxide/Nitride/Oxide Gate Dielectric," Annual Meeting of the Electrochemical Society, Seattle, Wash., May 1999.

S. Chang, N.B. Rex, R.K. Chang, G. Chong, and L.J. Guido, "Gallium Nitride Near-UV Microdisk Lasers: Efficient Pumping Configuration and Low Lasing Threshold," IEEE CLEO, Baltimore, Md., May 1999.

P. Mitev, M. Gherasimova, B. Gaffey, and L.J. Guido, "Isoelectronic Doping of Gallium Nitride with Arsenic," Electronic Materials Conference, Santa Barbara, Calif., June 1999.

S. Chang, N.B. Rex, R.K. Chang, G. Chong, and L.J. Guido, "Lasing in GaN Micro-Pillar Cavities: Whispering Gallery Modes and Polygonal Modes," IEEE LEOS Summer Topical Meeting, San Diego, Calif., July 1999.

G. Chong, M.A. Reed, B. Gaffey, M. Gherasimova, P. Mitev, and L.J. Guido, "Variable Range Hopping Conductivity in Silicon-Doped Gallium Nitride," 25th International Symposium on Compound Semiconductors, Berlin, Germany, August 1999.

L.J. Guido, N.B. Rex, S. Chang, and R.K. Chang, "Directional Stimulated Emission from Deformed GaN Micropillar Cavities," IEEE LOS ’99 Annual Meeting, San Francisco, Calif.,November 1999.

Software and Patents

VTIP Disclosure (D04.104), “A Technology for Making Super Bright and Reliable Lamps with Li ght-Emitting Diodes,” Co-Inventor Guo-Quan Lu, Filed on October 11, 2004.

Books/Chapters/Editorships
L.J. Guido, "Light Emitting Diode," in Encyclopedia of Science & Technology, 9th Edition, McGraw-Hill, 2000.

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