Mr. Bernard Geffroy Profile

Bernard Geffroy

at Ecole Polytechnique

SPIE Involvement:

Author

Publications (9)

SPIE Journal Paper | 1 May 2020

Detrimental effects of ion migration in the perovskite and hole transport layers on the efficiency of inverted perovskite solar cells

Yong Huang, Pilar Lopez-Varo, Bernard Geffroy, Heejae Lee, Jean-Eric Bourée, Arpit Mishra, Philippe Baranek, Alain Rolland, Laurent Pedesseau, Jean-Marc Jancu, Jacky Even, Jean-Baptiste Puel, Marie Gueunier-Farret

JPE, Vol. 10, Issue 02, 024502, (May 2020) https://doi.org/10.1117/12.10.1117/1.JPE.10.024502

KEYWORDS: Ions, Perovskite, Interfaces, Solar cells, Capacitance, Instrument modeling, Bismuth, Device simulation, Performance modeling, Photovoltaics

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Proceedings Article | 22 September 2015 Paper

Inkjet printing of photopolymerizable small molecules for OLED applications

Simon Olivier, Lionel Derue, Bernard Geffroy, Eléna Ishow, Tony Maindron

Proceedings Volume 9566, 95661N (2015) https://doi.org/10.1117/12.2186995

KEYWORDS: Organic light emitting diodes, Inkjet technology, Printing, Molecules, Polymers, Luminous efficiency, Deposition processes, Ultraviolet radiation, Atomic layer deposition, Aluminum

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Proceedings Article | 10 May 2012 Paper

Experimental and theoretical study of the optical and electrical properties optimization of an OLED in a microcavity

A. Coens, M. Chakaroun, A. Fischer, M. Lee, A. Boudrioua, J. Solard, B. Geffroy

Proceedings Volume 8435, 843515 (2012) https://doi.org/10.1117/12.922941

KEYWORDS: Organic light emitting diodes, Aluminum, Optical microcavities, Dielectric mirrors, Mirrors, Absorption, Electroluminescence, Metals, Interfaces, Transmittance

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Proceedings Article | 4 May 2012 Paper

Study of two-dimensional photonic crystals cavity using organic gain materials

F. Gourdon, N. Fabre, M. Chakaroun, J. Solard, E. Cambril, A. Yacomotti, S. Bouchoule, A. Fischer, A. Boudrioua, B. Geffroy

Proceedings Volume 8435, 84351I (2012) https://doi.org/10.1117/12.922469

KEYWORDS: Photonic crystals, Finite-difference time-domain method, Optical microcavities, Optical pumping, Waveguides, Laser damage threshold, Semiconductor lasers, Laser resonators, Silicon, Scanning electron microscopy

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Proceedings Article | 18 February 2012 Paper

White organic light-emitting diodes with ultra-thin mixed emitting layer

T. Jeon, S. Forget, S. Chenais, B. Geffroy, D. Tondelier, Y. Bonnassieux, E. Ishow

Proceedings Volume 8258, 82580G (2012) https://doi.org/10.1117/12.908156

KEYWORDS: Organic light emitting diodes, Molecules, Interfaces, Absorption, Doping, Energy transfer, CIE 1931 color space, Aluminum, Electroluminescence, Excitons

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Proceedings Article | 15 May 2008 Paper

Measurement of triplet exciton diffusion in the context of organic lasers

H. Choukri, M. Lebental, S. Forget, S. Chénais, D. Adès, A. Siove, B. Geffroy

Proceedings Volume 6999, 699908 (2008) https://doi.org/10.1117/12.783255

KEYWORDS: Excitons, Diffusion, Interfaces, Organic light emitting diodes, Electrons, Diodes, Semiconductor lasers, Molecules, Electroluminescence, Optical microcavities

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Proceedings Article | 10 October 2005 Paper

Blue and white organic light emitting diodes based on a doped DPVBi emitting layer

Noëlla Lemaître, Jérémie Lavigne, Paul Raimond, Tony Maindron, Christine Denis, Pascal Maisse, Bernard Geffroy

Proceedings Volume 5937, 593723 (2005) https://doi.org/10.1117/12.619788

KEYWORDS: Electroluminescence, Doping, Diodes, Organic light emitting diodes, Molecules, Quantum efficiency, Glasses, Laser induced fluorescence, External quantum efficiency, Luminescence

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Proceedings Article | 18 December 2002 Paper

Resonant-cavity organic light-emitting diodes for low-cost optical interconnects on CMOS silicon circuits

Frederique Jean, Jean-Yves Mulot, Bernard Geffroy, Christine Denis, Pierre Cambon, Jean-Michel Nunzi

Proceedings Volume 4798, (2002) https://doi.org/10.1117/12.451931

KEYWORDS: Organic light emitting diodes, Aluminum, Silicon, Optical microcavities, Electroluminescence, Refractive index, Optical interconnects, Mirrors, Diodes, Telescopic pixel displays

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Proceedings Article | 15 June 2001 Paper

Resonant-cavity organic light-emitting diodes for low-cost optical interconnects between CMOS silicon circuits

Frederique Jean, Jean-Yves Mulot, Pierre Cambon, Bernard Geffroy, Christine Denis, Andre Lorin, Fabrice Venturati, Jean-Michel Nunzi

Proceedings Volume 4279, (2001) https://doi.org/10.1117/12.429375

KEYWORDS: Electroluminescence, Optical microcavities, Silicon, Aluminum, Organic light emitting diodes, Optical interconnects, Luminescence, Telescopic pixel displays, Mirrors, Laser induced fluorescence

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Showing 5 of 9 publications

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