Faculty Profiles

Associate Research Professor

Aerospace, Physics and Space Sciences

Thanks for stopping by. I have recently joined the Aerospace Physics and Space Sciences Department after 20 years at NASA and 15 years with the US Air Force.

Personal Overview

PhD, MSc and BSc in Materials Science and Engineering

Experience:

Nuclear Physicist, Radiation Effects, Radiation Health Physics, Nuclear Engineering, Nuclear Non Proliferation

Expertiese

Trace analysis, SIMS, TIMS, Electron Microscopy, X-ray fluorescence, Gamma Spectroscopy, cryogenics, DLTS, electronic materials and device characterization, vacuum technology, radar absorbing materials (RAM), high temperature metals and ceramics, environmental durability, carbon/carbon composites, solar cells and solar energy materials, nuclear fuel cycle, nuclear batteries, alphavoltaic and betavoltaic batteries, special nuclear materials and their applications.

 

Educational Background

PhD Case Western Reserve University 1993

Master of Science Case Western Reserve University, Materials Science and Engineering 1988

Bachelors of Science in Engineering, Case Western Reserve University, Materials Science and Engineering 1983

Masters of Business Administration Cleveland State University 1998

Recognition & Awards

TS/SCI Clearance based on SSBI, PRI 1/19

Radiation Worker Level 2

Underground Nuclear Weapons Testing Orientation Program (UNTWOP)

30 Yr Service Award US Civil Service

US Patent 4,535,035 Oxidation Resistant Coating for Graphite Composites

 

Current Courses

Solid State Physics PHY 4033

Modern Physics PHY 2003

Radiation and Environmental Protection  ENS 4600

Electonic Measurments and Techniques PHY 3152

 

Professional Experience

Director of Research and Development, Materials Division, Air Force Technical Applications Center, Patrick AFB, FL

Nuclear Evaluator, Materials Division, Air Force Technical Applications Center, Patrick AFB, FL

Manager of Semiconductor Materials Characterization and Device Fabrication Lab, Photovoltaics Branch, NASA Glenn Research Center, Cleveland, Ohio

 

Current Research

Nuclear Non-Proliferation by collection an analysis of novel activation product signatures

Detection and Quantification of Actinides by X-ray and gamma ray spectroscopy

Alpha and Betavoltaic Nuclear Batteries

Selected Publications

Hull, E. L., R. Pehl, J. Lathrop, P. Mann, R. Mashburn, B. Suttle, H. Miley, C. Aalseth, T. Bowyer, T. Hossbach. G. Rybicki, and J. Buchholtz . Mechanically cooled large volume germanium detector systems for nuclear explosion monitoring, in Proceedings of the 30th Monitoring Research Review: Ground-based Nuclear Explosion Monitoring Technologies, LA-UR-08-05261. Vol. 2, pp 772–777. 2008.

R. Raffaelle, J. Harris, D. Hehemann, D.Scheiman, G. Rybicki, and A.Hepp, Integrated Thin-Film Solar Power System, 35th IECEC, Las Vegas, Nevada, July 2000

R. Raffaelle, W. Junek, J.Gorse, T. Thompson, J. Harris, J. Cowen, D.Hehemann, G. Rybicki and A.Hepp, Wet Chemical Synthesis of Thin Film Solar Cells, MRS Fall 1999 Mtg, Boston, MA.

R. Raffaelle, J. Harris, D. Hehemann, D.Scheiman, G. Rybicki, and A.Hepp, A Facile Route to Thin Film Solid State Lithium Microelectronic Batteries, Submitted to J.of Power Sources 11/99.

G.C. Rybicki, SiC Radioisotope Batteries, 16th. Space Photovoltaic Research and Technology Conference, Cleveland, Ohio, August 1999.

R. Raffaelle, W. Junek, J.Gorse, T. Thompson, J. Harris, A.Hepp and G. Rybicki, Chemically Deposited Thin Film Solar Cell Materials, 16th. Space Photovoltaic Research and Technology Conference, Cleveland, Ohio, August 1999

S.M. Hubbard, M. Tabib-Azar, S.G. Bailey, G. Rybicki, P. Neudeck, R.P. Raffaelle, Effect of Crystal Defects on the Minority Carrier Diffusion Lengths in 6H SiC, 26th IEEE PVSC. New

S.M. Hubbard, M. Tabib-Azar, S.G. Bailey, G. Rybicki, P. Neudeck, R.P. Raffaelle, A
Diffusion Length and Surface Recombination Velocity Map of a 6H-SiC Wafer Using the
EBIC Technique in the Planar Junction Configuration, Space Photovoltaic Research and
Technology, 15, 230(1997).

G.C. Rybicki, C.V Aburto and R. Uribe, SiC Alphavoltaic Battery, Proceedings of the 25 th. IEEE Photovoltaics Specialist Conference, Washington, DC, May 13-17, 1996,
p.93-96.

G.C. Rybicki, I.Weinberg, D.Scheiman, C.V Aburto and R. Uribe, High and Low Energy Proton Radiation Damage in P/N InP MOCVD Solar Cells, Progress in Photovoltaics, 4, 101(1996).

G.C. Rybicki, I.Weinberg, D.Scheiman, C.V Aburto and R. Uribe, High and Low Energy Proton Radiation Damage in P/N InP MOCVD Solar Cells, Proceedings of the 14th. Space Photovoltaics Research and Technology Conference, Cleveland, Ohio, October 1995, p.80-88.

G.C. Rybicki, Deep Level defects in Alpha Particle Irradiated 6H-Silicon Carbide, Journal of Applied Physics, 78, 2996(1995).

G.C. Rybicki and C. Zorman, Deep Level Defects and Carrier Removal Due to Proton and Alpha Particle Irradiation of InP, Journal of Applied Physics, 75, 3187 (1994).

G.C. Rybicki and W. Williams, Proton Irradiation Induced Defects in Zn and Cd doped InP, Journal of Applied Physics, 75, 1384 (1994).

I.Weinberg, G.Rybicki, C.V Aburto, R. Uribe, R.Jain and D. Scheiman, Performance
Defect Behavior and Carrier Enhancement in Low Energy Proton Irradiated p+nn+ InP
Solar Cells, Proc. of the 13th. Space Photovoltaic Research and Technology Conference,
Cleveland, Ohio, June 1994, p.149.

G.C. Rybicki, Proton Irradiation Damage in Zn and Cd doped InP, presented at the fall 1993 MRS Meeting, Boston, MA, and appearing in the proceedings.

G.C. Rybicki and W. Williams, DLTS Study of Proton Irradiation Induced Defects in Cd and Zn doped InP, Proceedings of the 23rd. IEEE Photovoltaics Specialist Conference, Louisville, KY, May 1993, p.787.

G.C. Rybicki and W. Williams, Activation Energy and Capture Cross Section of Majority
Carrier Traps in Zn Doped InP, Proc. of the 12th. Space Photovoltaics Research and
Technology Conference, Cleveland, OH, October 1992, p.43.

G.C.Rybicki and J.L Smialek, Effect of the θ −α A1203 Transformation on the Oxidation Behavior of β-NiAl + Zr, Oxidation of Metals, 31,275 (1989).

G.C. Rybicki and P. Pirouz, Indentation Fracture and Plasticity in Silicon, NASA TP2863, 1988.

G.C. Rybicki, Dynamic and Static Oxidation of Coated Carbon-Carbon Composite Materials, NASA TM88938, 1987.