Dr. Asanga B. Padmaperuma Profile

Dr. Asanga B. Padmaperuma

at Pacific Northwest National Lab

SPIE Involvement:

Author

Publications (13)

Proceedings Article | 13 September 2012 Paper

Heteroleptic cyclometalated Ir(III) complexes with charge transporting groups: a theoretical study

Asanga Padmaperuma, Carlos Fernandez

Proceedings Volume 8476, 84760A (2012) https://doi.org/10.1117/12.949510

KEYWORDS: Organic light emitting diodes, Iridium, Molecules, Excitons, Electrons, Chemistry, Oscillators, Phosphorescent materials, Solid state lighting, Energy efficiency

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Proceedings Article | 4 March 2011 Paper

Properties of TCO anodes deposited by APCVD and their applications to OLEDs

R. Korotkov, P. Ricou, L. Fang, J. Coffey, G. Silverman, M. Ruske, H. Schwab, A. Padmaperuma, D. Gaspar

Proceedings Volume 7939, 793919 (2011) https://doi.org/10.1117/12.875319

KEYWORDS: Zinc oxide, Organic light emitting diodes, X-rays, Reflection, Crystals, Dielectrics, Semiconducting wafers, Transparent conductors, Interfaces, Glasses

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SPIE Journal Paper | 1 January 2011 Open Access

Blue phosphorescent organic light-emitting devices utilizing cesium-carbonate-doped 2,4,6-tris(2′,4′-difluoro-[1,1′-biphenyl]-4-yl)-1,3,5-triazine

James Swensen, James Rainbolt, Liang Wang, Phillip Koech, Evgueni Polikarpov, Asanga Padmaperuma, Daniel Gaspar

JPE, Vol. 1, Issue 1, 011008, (January 2011) https://doi.org/10.1117/12.10.1117/1.3528003

KEYWORDS: Cesium, Organic light emitting diodes, Carbon monoxide, Electron transport, Aluminum, Doping, External quantum efficiency, Laser induced fluorescence, Absorption, Electrodes

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SPIE Journal Paper | 1 January 2011

Controlling charge transport in blue organic light-emitting devices by chemical functionalization of host materials

Evgueni Polikarpov, Phillip Koech, Liang Wang, James Swensen, Lelia Cosimbescu, James Rainbolt, Amber Von Ruden, Daniel Gaspar, Asanga Padmaperuma

JPE, Vol. 1, Issue 1, 011007, (January 2011) https://doi.org/10.1117/12.10.1117/1.3528499

KEYWORDS: Organic light emitting diodes, Oxides, Electroluminescence, Phosphorescence, Electrodes, Electron transport, Luminescence, Absorption, External quantum efficiency, Quantum efficiency

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Proceedings Article | 28 August 2009 Paper

Tuning charge balance in PHOLEDs with ambipolar host materials to achieve high efficiency

Asanga Padmaperuma, Philip Koech, Lelia Cosimbescu, Evgueni Polikarpov, James Swensen, Neetu Chopra, Franky So, Linda Sapochak, Daniel Gaspar

Proceedings Volume 7415, 74150H (2009) https://doi.org/10.1117/12.826905

KEYWORDS: Organic light emitting diodes, Electrons, External quantum efficiency, Molecules, Chemistry, Quantum efficiency, Light, Electron transport, Aluminum, Phosphorescent organic light-emitting diodes

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Proceedings Article | 27 August 2009 Paper

Design of new anchored p-dopants for high power efficiency OLEDs

Philip Koech, Linda Sapochak, James Rainbolt, Lelia Cosimbescu, Eugene Polikarpov, James Swensen, Liang Wang, Asanga Padmaperuma, Daniel Gaspar

Proceedings Volume 7415, 741505 (2009) https://doi.org/10.1117/12.827298

KEYWORDS: Molecules, Organic light emitting diodes, Doping, Halogens, Molecular electronics, Fluorine, Diffusion, Chemical species, Chemistry, Contamination

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Proceedings Article | 27 August 2009 Paper

Development of large area transparent conducting oxides from a combinatorial lead for organic solid state lighting

Dean Matson, Charles Bonham, James Swensen, Liang Wang, Asanga Padmaperuma, Daniel Gaspar, Joseph Berry, Ajaya Sigdel, Christopher Gorrie, David Ginley

Proceedings Volume 7415, 74150X (2009) https://doi.org/10.1117/12.827281

KEYWORDS: Sputter deposition, Organic light emitting diodes, Optical coatings, Argon, Transparent conductors, Glasses, Transmittance, Indium, Oxygen, Oxides

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Proceedings Article | 19 November 2007 Paper

Designing organic phosphine oxide host materials using heteroarmatic building blocks: inductive effects on electroluminescence

Linda Sapochak, Asanga Padmaperuma, Paul Vecchi, Xiuyu Cai, Paul Burrows

Proceedings Volume 6655, 665506 (2007) https://doi.org/10.1117/12.740970

KEYWORDS: Oxides, Electroluminescence, Organic light emitting diodes, Excimers, External quantum efficiency, Excitons, Chromophores, Glasses, Lens design, Chlorine

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Proceedings Article | 5 December 2006 Paper

Design strategies for achieving high triplet energy electron transporting host materials for blue electrophosphorescence

Linda Sapochak, Asanga Padmaperuma, Paul Vecchi, Hong Qiao, Paul Burrows

Proceedings Volume 6333, 63330F (2006) https://doi.org/10.1117/12.684126

KEYWORDS: Lens design, Organic light emitting diodes, Absorption, Oxides, Molecules, Bridges, Electron transport, Quantum efficiency, Glasses, Crystals

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