SelectedWorks - David C. Look

Selected Works of David C. Look

Former Senior Research Physicist, Semiconductor Research Center

Works
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About David C. Look

	Research Professor, Wright State University ‐ Physics
Institution Organization Position Type Position Title Time Period to Options Current Position Affiliate my profile with this Institution
	Senior Research Physicist, Wright State University ‐ Semiconductor Research Center
Institution Organization Position Type Position Title Time Period to Options Current Position Affiliate my profile with this Institution

Engineering, Materials Science and Engineering, Semiconductor and Optical Materials, Physical Sciences and Mathematics, and Physics

Solid State Physics, Material Characterization, Thin Films, and Condensed Matter Physics

Office: 248 Fawcett
Phone: (937) 255-1725

Email:

Articles (379)

Doping and Compensation in Wide-Band-Gap Oxides*

Physics Faculty Publications (2018)

Wide-band-gap oxides are extensively used as active or passive elements in various electronic and optoelectronic devices. Advantages include transparency, high ...

Study of Trapping Phenomena in SrTiO3 by Thermally Stimulated Techniques

Journal of Electronic Materials (2018)

Buguo Wang, Pooneh Saadatkia and David C. Look

Thermally stimulated current (TSC), thermally stimulated depolarization current (TSDC), and thermally stimulated luminescence (TSL) spectroscopies were combined to study trapping ...

Photoexcited Carrier Trapping and Recombination at Fe Centers in GaN

Journal of Applied Physics (2016)

T. K. Uždavinys, S. Marcinkevičius, J. H. Leach, K. R. Evans, et al.

Fe doped GaN was studied by time- resolved photoluminescence (PL) spectroscopy. The shape of PLtransients at different temperatures and excitation ...

Defect Segregation and Optical Emission in ZnO Nano- and Microwires

Nanoscale (2016)

W. T. Ruane, K. M. Johansen, K. D. Leedy, David C. Look, et al.

The spatial distribution of defect related deep band emission has been studied in zinc oxide (ZnO) nano- and microwires using ...

Optical Measurements and Mapping in Ga- and Al-doped ZnO and ...

Physica Status Solidi (A): Applied Research (2015)

David C. Look and Kevin D. Leedy

Hall-effect/conductivity measurements in TCO materials such as Ga-doped ZnO (GZO), Al-doped ZnO (AZO), and Sn-doped In2O3 (ITO) determine Hall mobility ...

Highly Transparent Conductive Electrode with Ultra-Low HAZE by Grain Boundary ...

APL Materials (2015)

Qiong Nian, Michael J. Callahan, David C. Look, Harry Efstathiadis, et al.

Commercial production of transparent conducting oxide (TCO) polycrystalline films requires high electrical conductivity with minimal degradation in optical transparency. Aqueous ...

Investigation of Plasmon Resonance Tunneling through Subwavelength Hole Arrays in ...

Journal of Applied Physics (2015)

Nima Nader, Shivashankar Vangala, Joseph R. Hendrickson, Kevin D. Leedy, et al.

Experimental results pertaining to plasmon resonance tunneling through a highly conductive zinc oxide (ZnO) layer with subwavelength hole-arrays is investigated ...

Large Scale Laser Crystallization of Solution-Based Alumina-Doped Zinc Oxide (AZO ...

Scientific Reports (2015)

Qiong Nian, Michael J. Callahan, Mojib Saei, David C. Look, et al.

A new method combining aqueous solution printing with UV Laser crystallization (UVLC) and post annealing is developed to deposit highly ...

Significant Mobility Enhancement in Extremely Thin Highly Doped ZnO Films

Applied Physics Letters (2015)

David C. Look, Eric R. Heller, Yu-Feng Yao and C. C. Yang

Highly Ga-doped ZnO (GZO) films of thicknesses d = 5, 25, 50, and 300 nm, grown on 160-nmZnO buffer layers ...

The Look-Locker Method in Magnetic Resonance Imaging: A Brief, Personal ...

Physics Faculty Publications (2014)

The “Look-Locker” method of measuring nuclear spin-lattice relaxation times in a single sweep was invented by David C. Look and ...

Dopant Profiles in Heavily Doped ZnO

Optical Engineering (2013)

Bruce Claflin, Kevin D. Leedy and David C. Look

X-ray photoelectron spectroscopy (XPS) is used to compare the composition as a function of depth of as-grown zinc oxide (ZnO) ...

Compensation in Al-Doped ZnO by Al-Related Acceptor Complexes: Synchrotron X-Ray ...

Physical Review Letters (2013)

Jiraroj T-Thienprasert, S. Rujirawat, W. Klysubun, J. N. Duenow, et al.

The synchrotron x-ray absorption near edge structures (XANES) technique was used in conjunction with first-principles calculations to characterize Al-doped ZnO ...

Native Point Defects at ZnO Surfaces, Interfaces and Bulk Films

physica status solidi (c) (2012)

Leonard J. Brillson, Yufeng Dong, Filip Tuomisto, B. G. Svensson, et al.

The impact of electronically-active native point defects on ZnO optoelectronic technologies at the nanoscale is only now being explored. We ...

Stable Highly Conductive ZnO Via Reduction of Zn Vacancies

Applied Physics Letters (2012)

David C. Look, Timothy C. Droubay and Scott A. Chambers

Growth of Ga-doped ZnO by pulsed laser deposition at 200 °C in an ambient of Ar and H2produces a resistivity ...

Self-Compensation in Semiconductors: The Zn Vacancy in Ga-Doped ZnO

Physical Review B (2011)

David C. Look, K. D. Leedy, L. Vines, B. G. Svensson, et al.

Self-compensation, the tendency of a crystal to lower its energy by forming point defects to counter the effects of a ...

Thermal Annealing Effect on Spin Coherence in ZnO Single Crystals

Journal of Applied Physics (2011)

Z. Yang, David C. Look, H. M. Zhou, W. V. Kawakami, et al.

The spin coherence time (T2*) in ZnO single crystals at 8.5 K decreases significantly from ∼11.2 ns to ∼2.3 ns ...

Enhanced p-Type Conductivity of Nitrogen Doped ZnO by Nano/Micro ...

Electronic Materials Letters (2011)

Wei Mu, Lei L. Kerr and David C. Look

We report the formation of p-type nitrogen doped ZnO (ZnO:N) grown by thermal-evaporation deposition. We found that the ZnO nano/micro ...

Ga-Doped ZnO Grown by Pulsed Laser Deposition in H-2: the ...

Journal of Vacuum Science & Technology A (2011)

David C. Look, T. C. Droubay, J. S. McCloy, Z. H. Zhu, et al.

Highly conductive thin films of ZnO doped with Ga were grown by pulsed laser deposition with 10 mTorr of H2 ...

Effects of Ar Vs. O2 Ambient On Pulsed-Laser-Deposited Ga-Doped ZnO

Journal of Crystal Growth (2011)

Robin C. Scott, Kevin D. Leedy, Burhan Bayraktaroglu, David C. Look, et al.

Ga-doped ZnO films were deposited by pulsed laser deposition (PLD) at 200 degrees C and 10 mTorr in either pure ...

Electrical, Optical, and Analytical Characterization of Bulk Hydrothermal ZnO Crystals ...

Journal of Crystal Growth (2011)

Buguo Wang, Michael J. Callahan, Lionel O. Bouthillette, David F. Bliss, et al.

Bulk In-doped ZnO crystals have been grown hydrothermally by adding In2O3 to the normal nutrient. The major growth occurs along ...

Influence of Substrate Temperature and Post-Deposition Annealing on Material Properties ...

Journal of Electronic Materials (2011)

Robin C. Scott, Kevin D. Leedy, Burhan Bayraktaroglu, David C. Look, et al.

Ga-doped ZnO films were prepared at 10 mTorr of oxygen over a broad temperature range using pulsed laser deposition. The ...

Traps in 4H-SiC Field-Effect Transistors Characterized by Capacitance- and Current-Mode ...

Journal of Electronic Materials (2011)

Z-Q. Fang, Bruce Claflin, David C. Look, F. Chai, et al.

Traps in SiC long-gate metal-semiconductor field-effect transistors (FATFETs) at different wafer positions have been characterized by deep-level transient spectroscopy (DLTS) ...

Defects at Oxygen Plasma Cleaned ZnO Polar Surfaces

Journal of Applied Physics (2010)

Y. F. Dong, Z-Q. Fang, David C. Look, Daniel R. Doutt, et al.

Depth-resolved cathodoluminescence spectroscopy (DRCLS) reveals the evolution of surface and near surface defects at polar surfaces with remote oxygen plasma ...

Deep Traps in AlGaN/GaN Heterostructures Studied by Deep Level ...

Journal of Applied Physics (2010)

Z-Q. Fang, B. Claflin, David C. Look, D. S. Green, et al.

Electrical properties, including leakage currents, threshold voltages, and deep traps, of AlGaN/GaN heterostructure wafers with different concentrations of carbon in ...

Highly Conductive ZnO Grown by Pulsed Laser Deposition in Pure ...

Applied Physics Letters (2010)

Robin C. Scott, Kevin D. Leedy, Burhan Bayraktaroglu, David C. Look, et al.

Ga-doped ZnO was deposited by pulsed laser deposition at 200 °C on SiO2/Si, Al2O3, or quartz in 10 mTorr of ...