Dr. Scott Robert Hunter Profile

Dr. Scott Robert Hunter

Chief Technology Officer at Oak Ridge National Lab

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Publications (10)

Proceedings Article | 17 October 2014 Paper

Spray-on superhydrophobic coatings with high mechanical durability for anti-corrosion and anti-soiling applications

Daniel Schaeffer, Georgios Polizos, D. Barton Smith, Slobodan Rajic, Panos Datskos, Scott Hunter

Proceedings Volume 9248, 924806 (2014) https://doi.org/10.1117/12.2072072

KEYWORDS: Optical coatings, Mirrors, Ultraviolet radiation, Transmittance, Nanoparticles, Silica, Solar energy, Reflectivity, Glasses, Chemistry

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Proceedings Article | 7 October 2014 Paper

Low cost anti-soiling coatings for CSP collector mirrors and heliostats

Scott Hunter, D. Barton Smith, Georgios Polizos, Daniel Schaeffer, Dominic Lee, Panos Datskos

Proceedings Volume 9175, 91750J (2014) https://doi.org/10.1117/12.2061845

KEYWORDS: Optical coatings, Mirrors, Particles, Silica, Reflectivity, Polymers, Diffuse reflectance spectroscopy, Glasses, Transmittance, Surface roughness

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Proceedings Article | 29 May 2014 Paper

Spray-on anti-soiling coatings that exhibit high transparency and mechanical durability

Daniel Schaeffer, Georgios Polizos, D. Barton Smith, Dominic Lee, Slobodan Rajic, Panos Datskos, Scott Hunter

Proceedings Volume 9074, 90740C (2014) https://doi.org/10.1117/12.2053387

KEYWORDS: Optical coatings, Mirrors, Transparency, Ultraviolet radiation, Transmittance, Nanoparticles, Silica, Solar energy, Reflectivity, Glasses

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Proceedings Article | 25 May 2012 Paper

Review of pyroelectric thermal energy harvesting and new MEMs-based resonant energy conversion techniques

Scott Hunter, Nickolay Lavrik, Salwa Mostafa, Slo Rajic, Panos Datskos

Proceedings Volume 8377, 83770D (2012) https://doi.org/10.1117/12.920978

KEYWORDS: Capacitors, Energy efficiency, Thermoelectric materials, Energy conversion efficiency, Pyroelectric materials, Temperature metrology, Energy harvesting, Instrument modeling, Thermal modeling, Dielectrics

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Harvesting electrical energy from thermal energy sources using pyroelectric conversion techniques has been under investigation for over 50 years, but it has not received the attention that thermoelectric energy harvesting techniques have during this time period. This lack of interest stems from early studies which found that the energy conversion efficiencies achievable using pyroelectric materials were several times less than those potentially achievable with thermoelectrics. More recent modeling and experimental studies have shown that pyroelectric techniques can be cost competitive with thermoelectrics and, using new temperature cycling techniques, has the potential to be several times as efficient as thermoelectrics under comparable operating conditions. This paper will review the recent history in this field and describe the techniques that are being developed to increase the opportunities for pyroelectric energy harvesting. The development of a new thermal energy harvester concept, based on temperature cycled pyroelectric thermal-to-electrical energy conversion, are also outlined. The approach uses a resonantly driven, pyroelectric capacitive bimorph cantilever structure that can be used to rapidly cycle the temperature in the energy harvester. The device has been modeled using a finite element multi-physics based method, where the effect of the structure material properties and system parameters on the frequency and magnitude of temperature cycling, and the efficiency of energy recycling using the proposed structure, have been modeled. Results show that thermal contact conductance and heat source temperature differences play key roles in dominating the cantilever resonant frequency and efficiency of the energy conversion technique. This paper outlines the modeling, fabrication and testing of cantilever and pyroelectric structures and single element devices that demonstrate the potential of this technology for the development of high efficiency thermal-toelectrical energy conversion devices.

Proceedings Article | 18 May 2011 Paper

Development of MEMS based pyroelectric thermal energy harvesters

Scott Hunter, Nickolay Lavrik, Thirumalesh Bannuru, Salwa Mostafa, Slo Rajic, Panos Datskos

Proceedings Volume 8035, 80350V (2011) https://doi.org/10.1117/12.882125

KEYWORDS: Capacitors, Solar energy, Temperature metrology, Microelectromechanical systems, Energy efficiency, Energy conversion efficiency, Fabrication, Dielectrics, Computing systems, Thermal modeling

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Proceedings Article | 8 May 2010 Paper

Distributed optical microsensors for hydrogen leak detection and related applications

Scott Hunter, James Patton, Michael Sepaniak, Panos Datskos, D. Barton Smith

Proceedings Volume 7693, 769307 (2010) https://doi.org/10.1117/12.852700

KEYWORDS: Sensors, Hydrogen, Palladium, Oxygen, Gas sensors, Transducers, Environmental sensing, Microsensors, Biological and chemical sensing, Gases

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Proceedings Article | 16 April 2008 Paper

Development and optimization of microcantilever based IR imaging arrays

Scott Hunter, Gregory Maurer, Gregory Simelgor, Shankar Radhakrishnan, John Gray, Ken Bachir, Thomas Pennell, Martin Bauer, Usha Jagadish

Proceedings Volume 6940, 694013 (2008) https://doi.org/10.1117/12.771652

KEYWORDS: Sensors, Staring arrays, Capacitance, Infrared imaging, Imaging arrays, Semiconducting wafers, Temperature metrology, Readout integrated circuits, Infrared sensors, Cameras

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Proceedings Article | 14 May 2007 Paper

High-sensitivity 25μm and 50μm pitch microcantilever IR imaging arrays

Scott Hunter, Gregory Maurer, Gregory Simelgor, Shankar Radhakrishnan, John Gray

Proceedings Volume 6542, 65421F (2007) https://doi.org/10.1117/12.726316

KEYWORDS: Sensors, Cameras, Infrared sensors, Infrared imaging, Imaging arrays, Infrared radiation, Imaging systems, Capacitance, Readout integrated circuits, Electronics

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Proceedings Article | 17 May 2006 Paper

High sensitivity uncooled microcantilever infrared imaging arrays

Scott Hunter, Gregory Maurer, Lijun Jiang, Gregory Simelgor

Proceedings Volume 6206, 62061J (2006) https://doi.org/10.1117/12.664727

KEYWORDS: Sensors, Infrared sensors, Capacitors, Infrared radiation, Infrared imaging, Absorption, Readout integrated circuits, Thermography, Resistors, Capacitance

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Proceedings Article | 10 October 2003 Paper

High-sensitivity uncooled microcantilever infrared imaging arrays

Scott Hunter, Robert Amantea, Lawrence Goodman, David Kharas, Sergey Gershtein, James Matey, Steven Perna, Young Yu, Nagi Maley, Lawrence White

Proceedings Volume 5074, (2003) https://doi.org/10.1117/12.497576

KEYWORDS: Sensors, Infrared sensors, Capacitors, Imaging arrays, Infrared imaging, Electronics, Infrared radiation, Thermography, Temperature metrology, Silicon carbide

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Showing 5 of 10 publications

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