Dr. Victor Karpov

Professor of Physics Experienced in PV, memory materials and other structures reliability

Research Expertise

physics
Materials Chemistry
Condensed Matter Physics
Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering
Ceramics and Composites
Physical and Theoretical Chemistry
Atomic and Molecular Physics, and Optics
Renewable Energy, Sustainability and the Environment
Acoustics and Ultrasonics
Surfaces, Coatings and Films
Mechanical Engineering
Mechanics of Materials
Computer Networks and Communications
Artificial Intelligence
Information Systems
Computer Science Applications
Bioengineering
Immunology and Allergy
Immunology
Genetics

About

Worked for First Solar LLC, Intel Co, various universities, studied device physics and reliability problems

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Publications

Atomic tunneling states and low-temperature anomalies of thermal properties in amorphous materials
Solid State Communications
1982
Localized states in glasses
Advances in Physics
1989
Fundamental drift of parameters in chalcogenide phase change memory
Journal of Applied Physics
2007
Nucleation switching in phase change memory
Applied Physics Letters
2007
Electrical conduction in chalcogenide glasses of phase change memory
Journal of Applied Physics
2012
Field-induced nucleation in phase change memory
Physical Review B
2008
Evidence of field induced nucleation in phase change memory
Applied Physics Letters
2008
Random diode arrays and mesoscale physics of large-area semiconductor devices
Physical Review B
2004
Soft Atomic Potentials and Low-Frequency Raman Scattering in Glasses
Soft Order in Physical Systems
1994
THERMAL CONDUCTIVITY OF GRAPHENE OXIDE: A MOLECULAR DYNAMICS STUDY
ПИСЬМА В ЖУРНАЛ ЭКСПЕРИМЕНТАЛЬНОЙ И ТЕОРЕТИЧЕСКОЙ ФИЗИКИ
2020
Hall effect in hopping conduction in an ensemble of quantum dots
JETP Letters
2017
Electrostatic Theory of Metal Whiskers
Physical Review Applied
2014
Pressure-induced transformations in glasses
Physical Review B
1993
Raman line shapes of anharmonic phonons
Physical Review Letters
1993
Electron-beam induced degradation in CdTe photovoltaics
Journal of Applied Physics
2000
Encyclopedia of theoretical physics
Uspekhi Fizicheskih Nauk
1985
Possible mechanisms for1/fnoise in chalcogenide glasses: A theoretical description
Physical Review B
2009
Detection of the insulating gap and conductive filament growth direction in resistive memories
Nanoscale
2015
ORDER PARAMETER IN ELECTRON SYSTEMS: ITS FLUCTUATIONS AND OSCILLATIONS
ЖУРНАЛ ЭКСПЕРИМЕНТАЛЬНОЙ И ТЕОРЕТИЧЕСКОЙ ФИЗИКИ
2019
Nucleation in disordered systems
Physical Review B
1996
Thermodynamics of Phase Transitions and Bipolar Filamentary Switching in Resistive Random-Access Memory
Physical Review Applied
2017
Meyer–Neldel rule for liquid semiconductors
Applied Physics Letters
1995
Heat Transfer in Filamentary RRAM Devices
IEEE Transactions on Electron Devices
2017
Nanoscale-crystallite nucleation and growth in amorphous solids
Physical Review B
1995
Log-Normal Statistics in Filamentary RRAM Devices and Related Systems
IEEE Electron Device Letters
2017
Evidence of field-induced nucleation switching in opal: VO2composites and VO2films
Physical Review B
2012
Optoelectric effect in ferromagnetic semiconductors
Soviet Physics Journal
1982
Critical Disorder and Phase Transitions in Random Diode Arrays
Physical Review Letters
2003
Self-organization of growing and decaying particles
Physical Review E
1997
Atomic critical potentials and structure of non-single-well potentials in glasses
Journal of Non-Crystalline Solids
1983
Physics of CdTe Photovoltaics: from Front to Back
MRS Proceedings
2005
Negative Diffusion and Clustering of Growing Particles
Physical Review Letters
1995
In memory of Boris Timofeevich Kolomiets (on the 90th anniversary of his birth)
Semiconductors
1998
Evidence of electric-field-accelerated growth of tin whiskers
MRS Communications
2015
Self-trapping of electron pairs in materials with tunneling states. Electrons in “perfect” covalent glasses
Solid State Communications
1981
Coupled electron–heat transport in nonuniform thin film semiconductor structures
Physical Review B
2012
Similarity laws in disordered condensed systems
Soviet Physics Uspekhi
1989
Quasilocalized sound excitations in disordered systems
Physical Review B
1993
Theory of nonradiative recombination in amorphous semiconductors
Journal of Non-Crystalline Solids
1987
Low-energy excitations and localized electron states in glassy semiconductors
Journal of Non-Crystalline Solids
1987
Fabrication and Physics of CdTe Devices by Sputtering: Final Report, 1 March 2005 - 30 November 2008
Unknown Venue
2009
Sputtered II-VI Alloys and Structures forTandem PV: Final Subcontract Report, 9 December 2003 - 30 July 2007
Unknown Venue
2008
Mechanism of Threshold Switching in Chalcogenide Phase Change Memory Devices
2007 22nd IEEE Non-Volatile Semiconductor Memory Workshop
2007
Resonant electronic states in disordered systems
Physical Review B
1993
Whisker growth on Sn thin film accelerated under gamma-ray induced electric field
Journal of Physics D: Applied Physics
2017
Nucleation in disordered media
Physical Review B
1994
Resistive switching in nano-structures
Scientific Reports
2018
Cultivating Metal Whiskers by Surface Plasmon Polariton Excitation
MRS Advances
2016
Power generation in random diode arrays
Physical Review B
2005
Patent abstracts
IEEE Microwave and Guided Wave Letters
1999
Instability in the Classic Theory of Coarsening
Physical Review Letters
1995
E2phase transition: Thin-film breakdown and Schottky-barrier suppression
Physical Review B
2004
Theoretical investigation of the spectral properties of gas lasers
Soviet Journal of Quantum Electronics
1983
Edge luminescence of direct-gap semiconductors
Soviet Physics Uspekhi
1981
Microscopic Structure of Metal Whiskers
Physical Review Applied
2018
Field-Induced Nucleation in the Presence of a Metal Electrode
Physical Review Applied
2015
Voltage deficit in PV with suppressed recombination
Applied Physics Letters
2023
Threshold switching in solar cells and a no-scribe photovoltaic technology
Applied Physics Letters
2021
Adiabatic theory of SET and RESET transitions
Journal of Applied Physics
2021
Gamma- and x-ray accelerated tin whisker development
Journal of Physics D: Applied Physics
2020
Percolation with plasticity for neuromorphic systems
Journal of Physics: Complexity
2020
Numerical modeling of nonohmic percolation conduction and Poole–Frenkel laws
Journal of Applied Physics
2020
Physics in the information age: qualitative methods in quantum mechanics
European Journal of Physics
2020
Pulse percolation conduction and multi-valued memory
AIP Advances
2020
The Poole-Frenkel laws and a pathway to multi-valued memory
Applied Physics Letters
2019
Corrigendum: The statistics of tin whisker diameters versus the underlying film grains (2019 J. Phys. D: Appl. Phys. 52 165305)
Journal of Physics D: Applied Physics
2019
The statistics of tin whisker diameters versus the underlying film grains
Journal of Physics D: Applied Physics
2019
OFF State Conduction in Filamentary RRAM
IEEE Electron Device Letters
2019
Comprehensive numerical modeling of filamentary RRAM devices including voltage ramp-rate and cycle-to-cycle variations
Journal of Applied Physics
2018
Dimensional quantization effects in the thermodynamics of conductive filaments
Nanotechnology
2018
The stochastic growth of metal whiskers
Applied Physics Letters
2017
Thermodynamic analysis of conductive filaments
Applied Physics Letters
2016
Electric field stimulated growth of Zn whiskers
AIP Advances
2016
Surface parameters determining a metal propensity for whiskers
Journal of Applied Physics
2016
The probabilistic distribution of metal whisker lengths
Journal of Applied Physics
2015
Electron beam induced growth of tin whiskers
Journal of Applied Physics
2015
A numerical model of nonuniform solar cell stability
Applied Physics A
2014
Hot spots spontaneously emerging in thin film photovoltaics
Solar Energy
2014
Light induced nucleation of metallic nanoparticles with frequency controlled shapes
Applied Physics Letters
2014
Semi-shunt field emission in electronic devices
Applied Physics Letters
2014
Stimulus-Selective Regulation of Human Mast Cell Gene Expression, Degranulation and Leukotriene Production by Fluticasone and Salmeterol
PLoS ONE
2014
Comment on “Threshold switching via electric field induced crystallization in phase change memory devices” [Appl. Phys. Lett. 100, 253105 (2012)]
Applied Physics Letters
2013
Hot spot runaway in thin film photovoltaics and related structures
Applied Physics Letters
2013
Multi-dimensional admittance spectroscopy
Journal of Applied Physics
2013
Nonuniform degradation and hot spots in thin film PV
2013 IEEE 39th Photovoltaic Specialists Conference (PVSC)
2013
Point admittance spectroscopy: New PV diagnostic
2013 IEEE 39th Photovoltaic Specialists Conference (PVSC)
2013
Point Contact Admittance Spectroscopy of Thin Film Solar Cells
MRS Proceedings
2013
A phenomenological theory of nonphotochemical laser induced nucleation
Physical Chemistry Chemical Physics
2012
Nucleation of metals by strong electric fields
Applied Physics Letters
2012
Nucleation of plasmonic resonance nanoparticles
Physical Review B
2012
Plasmonic mediated nucleation of resonant nano-cavities
Applied Physics Letters
2012
Chalcogenide Glass Thin Films for Nanodipole Junctionless Photovoltaics
MRS Proceedings
2011
Theory of conductive filaments in threshold switches
MRS Proceedings
2011
Thermodynamics of second phase conductive filaments
Journal of Applied Physics
2011
Conductive path formation in glasses of phase change memory
Journal of Applied Physics
2010
Electric field driven optical recording
Applied Physics Letters
2010
Relaxation oscillations in chalcogenide phase change memory
Journal of Applied Physics
2010
Shunting path formation in thin film structures
Applied Physics Letters
2010
Substance P primes lipoteichoic acid‐ and Pam3CysSerLys4‐mediated activation of human mast cells by up‐regulating Toll‐like receptor 2
Immunology
2010
A unified model of nucleation switching
Applied Physics Letters
2009
Relaxation Oscillation in GST-Based Phase Change Memory Devices
2009 IEEE International Memory Workshop
2009
Theory of electronic transport in noncrystalline junctions
Journal of Applied Physics
2009
Understanding and mitigating effects of nonuniformities on reliability of thin film photovoltaics
SPIE Proceedings
2009
Admittance characterization of semiconductor junctions
Journal of Applied Physics
2008
Admittance spectroscopy of thin-film photovoltaics
2008 33rd IEEE Photovolatic Specialists Conference
2008
Crystal nucleation in glasses of phase change memory
Journal of Applied Physics
2008
From photovoltaics to medical imaging: Applications of thin-film CdTe in x-ray detection
Applied Physics Letters
2008
Nanodipole photovoltaics
Applied Physics Letters
2008
Phase change memory parameters: Effects of atomic transformations
2008 9th Annual Non-Volatile Memory Technology Symposium (NVMTS)
2008
Piezo-photovoltaic device operations
2008 33rd IEEE Photovolatic Specialists Conference
2008
Principles of nano-dipole photovoltaics
2008 33rd IEEE Photovolatic Specialists Conference
2008
Significance of methods for purification of oligodeoxyribonucleotide probes for the efficiency of gene diagnosis by real-time PCR
Bulletin of Experimental Biology and Medicine
2008
Size dependent nonuniformity loss in thin film photovoltaics
2008 33rd IEEE Photovolatic Specialists Conference
2008
Temporal Changes of Parameters in Phase Change Memory
2008 International Symposium on VLSI Technology, Systems and Applications (VLSI-TSA)
2008
10.1007/s11171-008-1010-6
CrossRef Listing of Deleted DOIs
2010
Long-range random potential in thin-film structures
Physical Review B
2007
Phenomenological model of CdS based thin film photovoltaics
2006 IEEE 4th World Conference on Photovoltaic Energy Conference
2006
Piezo-photovoltaic coupling in CdS-based thin-film photovoltaics
Journal of Applied Physics
2007
Propagating Electric Impulses in Thin Film PV
2006 IEEE 4th World Conference on Photovoltaic Energy Conference
2006
Pyroelectric coupling in thin film photovoltaics
physica status solidi (RRL) – Rapid Research Letters
2007
Physical model of CdS-based thin-film photovoltaic junctions
Applied Physics Letters
2006
Physics of ultrathin photovoltaics
Applied Physics Letters
2006
Piezo-effect and physics of CdS-based thin-film photovoltaics
Applied Physics Letters
2005
Back contact and reach-through diode effects in thin-film photovoltaics
Journal of Applied Physics
2004
Blocking thin-film nonuniformities: Photovoltaic self-healing
Applied Physics Letters
2004
Reach-through band bending in semiconductor thin films
Applied Physics Letters
2004
Admittance spectroscopy revisited: Single defect admittance and displacement current
Journal of Applied Physics
2003
Low-light divergence in photovoltaic parameter fluctuations
Applied Physics Letters
2003
Photoluminescence fatigue and related degradation in thin-film photovoltaics
Journal of Applied Physics
2003
Bias-dependent photoluminescence in CdTe photovoltaics
Applied Physics Letters
2002
Effects of nonuniformity in thin-film photovoltaics
Applied Physics Letters
2002
Nonlocal response in CdTe photovoltaics
Journal of Applied Physics
2002
Shunt screening, size effects and I /V analysis in thin-film photovoltaics
Journal of Applied Physics
2001
Fluctuations during melting
Journal of Physics: Condensed Matter
1996
Large-scale fluctuations in the diffusive decomposition of solid solutions
Physical Review B
1995
Ostwald ripening in disordered systems
Physical Review B
1995
The fowl adenovirus type 1 (CELO) virus-associated RNA-encoding gene: a new ribozyme-expression vector
Gene
1995
Band tails in diluted magnetic semiconductors
Physical Review B
1994
Band-gap fluctuations in semiconducting solid solutions
Physical Review B
1994

Education

Saint Petersburg State Polytechnical University

Researcher, Nuclear Physics / April, 1973

Saint Petersburg

Experience

University of Toledo

Professor / 2000Present

First Solar Inc

Senior Scientist / 19972000

University of Chicago

Visiting Scholar / 19951997

Argonne National Laboratory

Visiting Scientist / 19921993

Saint Petersburg State Polytechnical University

Researcher/Assistant Professor/Associate Professor/Full Professor / September, 1973September, 1992

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