Prof. Eitan Ehrenfreund Profile

Prof. Eitan Ehrenfreund

at Technion-Israel Institute of Technology

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Author

Publications (8)

SPIE Journal Paper | 8 June 2018

Photoexcitations dynamics in pristine low bandgap π-conjugated copolymers

Uyen N. V. Huynh, Tek Basel, Eitan Ehrenfreund, Zeev Valy Vardeny

JPE, Vol. 8, Issue 03, 032220, (June 2018) https://doi.org/10.1117/12.10.1117/1.JPE.8.032220

KEYWORDS: Picosecond phenomena, Absorption, Magnetism, Spectroscopy, Polymers, Excitons, Tellurium, Solar cells, Mid-IR, Absorption spectroscopy

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SPIE Journal Paper | 6 June 2018

Long-lived-correlated triplet-pair state in an imide substituted poly-thienylene vinylene-based π-conjugated polymer

Evan Lafalce, Uyen Huynh, Ella Olejnik, Tek Basel, Eitan Ehrenfreund, Zeev Valy Vardeny, Xiaomei Jiang

JPE, Vol. 8, Issue 03, 032217, (June 2018) https://doi.org/10.1117/12.10.1117/1.JPE.8.032217

KEYWORDS: Excitons, Polymers, Absorption, Magnetism, Picosecond phenomena, Spectroscopy, Oxygen, Modulation, Physics, Ultrafast laser spectroscopy

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Proceedings Article | 25 August 2010 Paper

Hyperfine interaction in spin response of organic devices

Tho Nguyen, Golda Hukic-Markosian, Fujian Wang, Leonard Wojcik, Xiao-Guang Li, Eitan Ehrenfreund, Z. Vardeny

Proceedings Volume 7760, 77601A (2010) https://doi.org/10.1117/12.860057

KEYWORDS: Polymers, Magnetism, Electrodes, Organic light emitting diodes, Polarons, Data modeling, Fermium, Frequency modulation, Surface plasmons, Organic semiconductors

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Proceedings Article | 20 April 2006 Paper

The effect of intermediate layers on the internal electric field in organic semiconductor devices

Christoph Lungenschmied, Gilles Dennler, Eitan Ehrenfreund, Helmut Neugebauer, Niyazi Serdar Sariciftci

Proceedings Volume 6192, 61921W (2006) https://doi.org/10.1117/12.662885

KEYWORDS: Aluminum, Laser induced fluorescence, Capacitance, Semiconductors, Polymers, Organic semiconductors, Dielectric spectroscopy, Electrodes, Organic light emitting diodes, Interfaces

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Proceedings Article | 1 December 1997 Paper

Electroabsorption spectroscopy of self-assembled (PPV/SPS) films: size-dependent blue shift

Ofer Levi, Jorge Poplawski, Moeen Tarabia, Eitan Ehrenfreund, Dan Davidov

Proceedings Volume 3145, (1997) https://doi.org/10.1117/12.279294

KEYWORDS: Polymers, Absorption, Heterojunctions, Surface plasmons, Spectroscopy, Polymer thin films, Reflectivity, Semiconductors, Signal detection, X-rays

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Proceedings Article | 1 December 1997 Paper

Phonon spectroscopy in pi-conjugated polymers: the role of the excited electronic states

Eitan Ehrenfreund, Z. Valy Vardeny

Proceedings Volume 3145, (1997) https://doi.org/10.1117/12.295532

KEYWORDS: Polymers, Solitons, Phonons, Absorption, Doping, Infrared radiation, Polarons, Global Positioning System, Dispersion, Spectroscopy

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Proceedings Article | 1 December 1997 Paper

Tuning the electroluminescence and photoluminescence of PPV derivatives by protonation-deprotonation processes

Yoav Eichen, Gregory Nakhmanovich, Vladimir Gorelik, Olga Epstein, Jorge Poplawski, Eitan Ehrenfreund

Proceedings Volume 3148, (1997) https://doi.org/10.1117/12.279336

KEYWORDS: Polymers, Electroluminescence, Luminescence, Polymer thin films, Absorption, Analog electronics, Infrared radiation, Thin films, Nitrogen, Coating

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Proceedings Article | 30 September 1996 Paper

Transient photoconductivity and light-activated p-n junction device based on bilayer-substituted polythiophene derivatives

Yaron Greenwald, Jorge Poplawski, Eitan Ehrenfreund, Shammai Speiser

Proceedings Volume 2851, (1996) https://doi.org/10.1117/12.251818

KEYWORDS: Polymers, Electrodes, Molecules, Quenching (fluorescence), Photons, Ions, Diodes, Aluminum, Solids, Visible radiation

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Showing 5 of 8 publications

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