Prof. Alan J. Heeger Profile

Prof. Alan J. Heeger

Professor at Univ of California Santa Barbara

SPIE Involvement:

Author

Publications (36)

Proceedings Article | 4 November 2016 Presentation

Developing high mobility emissive organic semiconductors towards integrated optoelectronic devices (Conference Presentation)

Huanli Dong, Wenping Hu, Alan Heeger

Proceedings Volume 9941, 99411D (2016) https://doi.org/10.1117/12.2239179

KEYWORDS: Organic semiconductors, Luminescence, Photonic integrated circuits, Organic light emitting transistors, Molecules, Molecular aggregates, Fluorescent materials, Aluminum, Polymers, Quantum efficiency

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Proceedings Article | 28 August 2009 Paper

Ultrasensitive solution processed polymer photodetectors

Xiong Gong, Minghong Tong, Ji Sun Moon, Alan Heeger

Proceedings Volume 7418, 74180I (2009) https://doi.org/10.1117/12.824386

KEYWORDS: Photodetectors, Polymers, Absorption, Thin films, Composites, Semiconductors, Sensors, Ultraviolet radiation, Silicon, Indium gallium arsenide

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Proceedings Article | 28 August 2009 Paper

High efficiency polymer solar cells with internal quantum efficiency approaching 100%

Sung Heum Park, Mario Leclerc, Alan Heeger, Kwanghee Lee

Proceedings Volume 7416, 74160P (2009) https://doi.org/10.1117/12.825836

KEYWORDS: Solar cells, Quantum efficiency, Polymers, Internal quantum efficiency, Absorption, Electrodes, Interfaces, Heterojunctions, Transmission electron microscopy, Fullerenes

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Proceedings Article | 21 August 2009 Paper

Quasi one-dimensional transport in doped PBTTT and PBTTT thin film transistors

Jonathan Yuen, Reghu Menon, Nelson Coates, Ebinazar Namdas, Shinuk Cho, Scott Hannahs, Daniel Moses, Alan Heeger

Proceedings Volume 7417, 74171A (2009) https://doi.org/10.1117/12.825695

KEYWORDS: Field effect transistors, Temperature metrology, Polymers, Liquids, Dielectrics, Solids, Electronics, Metals, Thin films, Transistors

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Proceedings Article | 14 November 2007 Paper

Air-stable efficient polymer solar cells incorporating solution-processed titanium oxide layer

Kwanghee Lee, Jin Young Kim, Alan Heeger

Proceedings Volume 6656, 665602 (2007) https://doi.org/10.1117/12.733763

KEYWORDS: Polymers, Solar cells, Composites, Aluminum, Heterojunctions, Absorption, Oxygen, Solar energy, Titanium, Tandem solar cells

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Proceedings Article | 5 December 2006 Paper

Multilayer white lighting polymer light-emitting diodes

Xiong Gong, Shu Wang, Alan Heeger

Proceedings Volume 6333, 633312 (2006) https://doi.org/10.1117/12.694380

KEYWORDS: Organic light emitting diodes, Polymers, Sodium, Lithium, Molecules, Bioalcohols, Luminous efficiency, Light sources, Solid state lighting, Manufacturing

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Proceedings Article | 3 November 2006 Paper

Charge carrier photogeneration and transport properties of a novel low-bandgap conjugated polymer for organic photovoltaics

Cesare Soci, In-Wook Hwang, Cuiying Yang, Daniel Moses, Zhengguo Zhu, David Waller, Russel Gaudiana, Christoph Brabec, Alan Heeger

Proceedings Volume 6334, 63340D (2006) https://doi.org/10.1117/12.680781

KEYWORDS: Polymers, Absorption, Picosecond phenomena, Composites, Solar cells, Photovoltaics, Heterojunctions, Solar energy, Ultrafast phenomena, Organic photovoltaics

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Proceedings Article | 29 August 2006 Paper

Thermal annealing induced enhancement in the performance of polymer field-effect transistor using poly(3-hexylthiophene) and [6,6]-phenyl C61-butyric acid methyl ester

Shinuk Cho, Jonathan Yuen, Jin Young Kim, Kwanghee Lee, Alan Heeger

Proceedings Volume 6336, 63360X (2006) https://doi.org/10.1117/12.681026

KEYWORDS: Annealing, Field effect transistors, Electrodes, Polymers, Aluminum, Electrons, Gold, Crystals, Resistance, Platinum

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Proceedings Article | 23 February 2006 Paper

Light emission from an ambipolar semiconducting polymer field-effect transistor

James Swensen, Cesare Soci, Alan Heeger

Proceedings Volume 6117, 61170R (2006) https://doi.org/10.1117/12.644204

KEYWORDS: Electrodes, Photomasks, Silicon, Electrons, Dielectrics, Calcium, Transistors, Metals, Semiconducting wafers, Silver

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Proceedings Article | 23 February 2006 Paper

New architecture for high-efficiency polymer photovoltaic cells using solution-based titanium oxide layer

Kwanghee Lee, Jin Young Kim, Alan Heeger

Proceedings Volume 6117, 61170T (2006) https://doi.org/10.1117/12.640666

KEYWORDS: Solar cells, Polymers, Electrodes, Aluminum, Absorption, Composites, Titanium, Quantum efficiency, Oxides, Active optics

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Proceedings Article | 4 October 2005 Paper

New architecture for thermally stable high efficiency polymer solar cells

Kwanghee Lee, Jin Young Kim, Wanli Ma, Alan Heeger

Proceedings Volume 5938, 59380B (2005) https://doi.org/10.1117/12.626154

KEYWORDS: Annealing, Solar cells, Aluminum, Polymers, Electrodes, Crystals, Heterojunctions, Absorption, Composites, Resistance

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Proceedings Article | 10 November 2004 Paper

White electrophosphorescence from semiconducting polymer blends

Xiong Gong, Daniel Moses, Alan Heeger

Proceedings Volume 5519, (2004) https://doi.org/10.1117/12.559072

KEYWORDS: Organic light emitting diodes, Polymers, Electroluminescence, Semiconductors, Luminous efficiency, Iridium, Solid state lighting, Manufacturing, Luminescence, Light

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Proceedings Article | 16 February 2004 Paper

Conjugated polymer composites for use in electrophosphorescent light-emitting diodes

Xiong Gong, Wanli Ma, Jacek Ostrowski, Guillermo Bazan, Daniel Moses, Alan Heeger

Proceedings Volume 5214, (2004) https://doi.org/10.1117/12.515221

KEYWORDS: Polymers, Organic light emitting diodes, Light emitting diodes, Electrons, Metals, Semiconductors, Iridium, Electrodes, Quantum efficiency, Absorption

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Proceedings Article | 17 November 2003 Paper

Influence of gate dielectrics on electrical properties of F8T2 polyfluorene thin film transistors

James Swensen, Jerzy Kanicki, Alan Heeger

Proceedings Volume 5217, (2003) https://doi.org/10.1117/12.507630

KEYWORDS: Dielectrics, Polymers, Silicon, Interfaces, Aluminum, Plasma enhanced chemical vapor deposition, Optical lithography, Low pressure chemical vapor deposition, Electrodes, Oxides

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Proceedings Article | 21 February 2002 Paper

Mechanism of carrier photoexcitation in semiconducting polymers: the role of electron photoemission in photoconductivity measurements

Daniel Moses, Paulo Miranda, Cesare Soci, Alan Heeger

Proceedings Volume 4465, (2002) https://doi.org/10.1117/12.456939

KEYWORDS: Absorption, Excitons, Polymers, Ultrafast phenomena, Polarons, Semiconductors, Quantum efficiency, Solids, Infrared radiation, Quenching (fluorescence)

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Proceedings Article | 5 February 2001 Paper

High-performance polymer photovoltaic cells and photodetectors

Gang Yu, Gordana Srdanov, Hailiang Wang, Yong Cao, Alan Heeger

Proceedings Volume 4108, (2001) https://doi.org/10.1117/12.416931

KEYWORDS: Polymers, Solar cells, Photodetectors, Photodiodes, Image sensors, Sensors, Energy conversion efficiency, Quantum efficiency, Polymer thin films, Visible radiation

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Proceedings Article | 19 May 2000 Paper

Photovoltaic cells and photodetectors made with semiconductor polymers: recent progress

Gang Yu, Gordana Srdanov, Hailiang Wang, Yong Cao, Alan Heeger

Proceedings Volume 3939, (2000) https://doi.org/10.1117/12.386366

KEYWORDS: Polymers, Solar cells, Photodetectors, Photodiodes, Semiconductors, Energy conversion efficiency, Sensors, Digital imaging, Image sensors, Quantum efficiency

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Proceedings Article | 17 December 1999 Paper

Time-resolved photocarrier generation in conjugated polymers

Arthur Dogariu, Daniel Moses, Alan Heeger

Proceedings Volume 3797, (1999) https://doi.org/10.1117/12.372738

KEYWORDS: Quantum efficiency, Absorption, Polymers, Excitons, Picosecond phenomena, Ultrafast phenomena, Temporal resolution, Semiconductors, Signal processing, Luminescence

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Proceedings Article | 17 December 1999 Paper

Time-resolved Foerster energy transfer in molecular and polymeric guest-host systems

Arthur Dogariu, Rahul Gupta, Alan Heeger, Hailiang Wang, Hideyuki Murata, Zakya Kafafi

Proceedings Volume 3797, (1999) https://doi.org/10.1117/12.372724

KEYWORDS: Energy transfer, Polymers, Absorption, Molecular energy transfer, Solids, Molecules, Picosecond phenomena, Excitons, Laser beam diagnostics, Spectroscopy

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Proceedings Article | 28 May 1999 Paper

Spatial frequency filtering using hybrid polymer/VLSI technology

Jon McElvain, John Langan, Russel Behm, M. Costolo, Alan Heeger

Proceedings Volume 3669, (1999) https://doi.org/10.1117/12.349691

KEYWORDS: Spatial frequencies, Spatial filters, Linear filtering, Image processing, Polymers, Analog electronics, Image filtering, Switches, Modulation transfer functions, Optical filters

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Proceedings Article | 1 December 1997 Paper

Light emission from semiconducting polymers: LEDs, lasers, and white light for the future

Fumitomo Hide, Maria Diaz-Garcia, Michael McGehee, Benjamin Schwartz, Peter Kozodoy, Steven DenBaars, Alan Heeger

Proceedings Volume 3148, (1997) https://doi.org/10.1117/12.279331

KEYWORDS: Polymers, Optical microcavities, Light emitting diodes, Semiconductor lasers, Semiconductors, Waveguides, Thin films, Laser damage threshold, Optical pumping, Quantum efficiency

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Proceedings Article | 1 December 1997 Paper

Highly photoluminescent conjugated polymers: stimulated emission and device applications

Fumitomo Hide, Benjamin Schwartz, Maria Diaz-Garcia, Alan Heeger

Proceedings Volume 3145, (1997) https://doi.org/10.1117/12.295534

KEYWORDS: Polymers, Semiconductors, Waveguides, Semiconductor lasers, Planar waveguides, Refractive index, Absorption, Solid state lasers, Light emitting diodes, Glasses

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Proceedings Article | 1 December 1997 Paper

Photopumped gain narrowing experiments in oriented films of semiconducting polymers

Maria Diaz-Garcia, Cuiying Yang, Edward Miller, Kwanghee Lee, Alan Heeger

Proceedings Volume 3148, (1997) https://doi.org/10.1117/12.284179

KEYWORDS: Polymers, Polarization, Crystals, Absorption, Reflection, X-ray diffraction, Semiconductors, Diffraction, Anisotropy, Thin films

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Proceedings Article | 1 November 1997 Paper

Ultrafast holography and transient-absorption spectroscopy in charge-transfer polymers

Duncan McBranch, Eric Maniloff, Dan Vacar, Alan Heeger

Proceedings Volume 3142, (1997) https://doi.org/10.1117/12.293357

KEYWORDS: Polymers, Diffraction, Holography, Picosecond phenomena, Absorption, Diffusion, Diffraction gratings, Excitons, Ultrafast phenomena, Interfaces

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Proceedings Article | 1 November 1997 Paper

Photoinduced changes in the complex index of refraction resulting from photoinduced charge transfer in conjugated polymer/fullerene blends

Edward Miller, Kwanghee Lee, Kobi Hasharoni, Jan Hummelen, Fred Wudl, Alan Heeger

Proceedings Volume 3142, (1997) https://doi.org/10.1117/12.279252

KEYWORDS: Absorption, Polymers, Fullerenes, Refraction, Reflectivity, Modulation, Nonlinear optics, Holography, Photorefractive polymers, Ultrafast phenomena

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Proceedings Article | 15 April 1997 Paper

High-sensitivity photodetectors made with charge-transfer polymer blends

Gang Yu, Jun Gao, Cuiying Yang, Alan Heeger

Proceedings Volume 2999, (1997) https://doi.org/10.1117/12.271201

KEYWORDS: Polymers, Photodiodes, Quantum efficiency, Photodetectors, Heterojunctions, Solar cells, Organic light emitting diodes, Semiconductors, Interfaces, Ultraviolet radiation

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Proceedings Article | 16 December 1996 Paper

Polymer-C60 charge-transfer blends: enhanced photosensitivity via a bicontinuous network of donor/acceptor heterojunctions

Gang Yu, Alan Heeger

Proceedings Volume 2854, (1996) https://doi.org/10.1117/12.262974

KEYWORDS: Polymers, Photodiodes, Quantum efficiency, Heterojunctions, Interfaces, Information operations, Ultraviolet radiation, Solar cells, Metals, Electrodes

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Proceedings Article | 16 December 1996 Paper

Nonlinear optical changes in the complex index of refraction in conducting polymer-methanofullerene films evaluated by photoexcitation spectroscopy

Kwanghee Lee, Edward Miller, Niyazi Serdar Sariciftci, Jan Hummelen, Fred Wudl, Alan Heeger

Proceedings Volume 2854, (1996) https://doi.org/10.1117/12.262991

KEYWORDS: Absorption, Reflectivity, Polymers, Composites, Nonlinear optics, Polymer thin films, Spectroscopy, Adaptive optics, Refraction, Photorefractive polymers

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Proceedings Article | 16 December 1996 Paper

Charge-transfer polymers: a new class of materials for nonlinear optics

Eric Maniloff, Duncan McBranch, Hsing-Lin Wang, Benjamin Mattes, Dan Vacar, Alan Heeger

Proceedings Volume 2854, (1996) https://doi.org/10.1117/12.262992

KEYWORDS: Holography, Absorption, Polymers, Holographic materials, Modulation, Diffraction, Signal to noise ratio, Diffraction gratings, Refractive index, Nonlinear optics

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Proceedings Article | 9 February 1996 Paper

Plastic retina: image enhancement using polymer grid triode arrays

Alan Heeger, David Heeger, John Langan, Yang Yang

Proceedings Volume 2716, (1996) https://doi.org/10.1117/12.232150

KEYWORDS: Polymers, Retina, Image enhancement, Image processing, Semiconductors, Resistance, Diodes, Imaging arrays, LCDs, Analog electronics

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Proceedings Article | 8 December 1995 Paper

Nonlinear absorption in charge-transfer films

Myoungsik Cha, Niyazi Serdar Sariciftci, Alan Heeger, Jan Hummelen, Fred Wudl

Proceedings Volume 2530, (1995) https://doi.org/10.1117/12.228121

KEYWORDS: Absorption, Nonlinear optics, Polymers, Solids, Composites, Optical limiting, Data modeling, Semiconductors, Electrons, Quantum efficiency

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Proceedings Article | 8 December 1995 Paper

Role of buckminsterfullerene, C60, in organic polymeric photoelectric devices

Niyazi Serdar Sariciftci, Alan Heeger

Proceedings Volume 2530, (1995) https://doi.org/10.1117/12.228126

KEYWORDS: Polymers, Heterojunctions, Composites, Semiconductors, Absorption, Fullerenes, Solar energy, Nonlinear optics, Quantum efficiency, Picosecond phenomena

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Proceedings Article | 28 November 1994 Paper

Subpicosecond photo-induced electron transfer from conjugated polymers to C60

Brett Kraabel, Duncan McBranch, Charles Lee, Niyazi Serdar Sariciftci, Alan Heeger

Proceedings Volume 2284, (1994) https://doi.org/10.1117/12.196130

KEYWORDS: Polymers, Absorption, Picosecond phenomena, Composites, Ultrafast phenomena, Photonics, Fullerenes, Quantum efficiency, Luminescence, Diamond

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Proceedings Article | 23 July 1993 Paper

Photoexcitation spectroscopy of photoinduced electron transfer in conducting polymer-Buckminsterfullerene composites

Laura Smilowitz, Niyazi Serdar Sariciftci, Richard Wu, C. Gettinger, Alan Heeger, Fred Wudl, Gary Wang, John Bowers

Proceedings Volume 1852, (1993) https://doi.org/10.1117/12.148454

KEYWORDS: Polymers, Composites, Absorption, Solids, Luminescence, Solitons, Argon ion lasers, Spectroscopy, Ions, Signal detection

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Proceedings Article | 23 July 1993 Paper

Picosecond photoluminescence from poly(2-methoxy,5-(2'-ethyl-hexyloxy)-p-phenylene-vinylene): solutions, gels, films, and blends

Andy Hays, Laura Smilowitz, Alan Heeger, Gary Wang, John Bowers

Proceedings Volume 1852, (1993) https://doi.org/10.1117/12.148455

KEYWORDS: Luminescence, Quantum efficiency, Picosecond phenomena, Polymers, Absorption, Temperature metrology, Solids, Time metrology, Absorbance, Streak cameras

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