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Dr. Yong Tao
Department of Mechanical & Energy Engineering, University of North Texas | Denton, Texas, USA
PositionPACCAR Professor of Engineering and Chairman
Phone(940) 565-2400
UNT Net Zero Research House(Rendering)
Building and Renewable Energy
Energy Efficient Building Cooling Systems
Ground Source Heat Pump
Heat and Mass Transfer in Multiphase Media
Renewable Energy (solar/wind)
Distributed Generation and Storage
Materials and Appliances
Utility
Plug-in Hybrid/E- Vehicles
Building Systems
Smart Sensors
Geothermal Heat Pump
Zero-Energy House
American (UNT) House, Beijing China
Visit by Secretaries Chu and Locke, July 16, ‘09
Z0E – Zero Energy Lab
Department of Mechanical & Energy Engineering, University of North Texas | Denton, Texas, USA
Dr. Sheldon Q. ShiGreen Building Materials Engineering wood composites for construction applications Composite material processing, product evaluation, and qualification Environmental friendly adhesives for biocomposite building materials Building insulation materials, such as PU foam, etc. from renewable
biomass resources.
PositionAssociate Professor
Phone(940) 565-2031
GroupRenewable Bioproducts
Structure TestingDepartment of Mechanical and Energy Engineering, University of North Texas | Denton, Texas, USA
Dr. Jiangtao Cheng
Department of Mechanical & Energy Engineering, University of North Texas | Denton, Texas, USA
Research Areas:• Electrowetting Solar Tracking• Electrowetting Solar House• Optofluidic Solar Concentrator• Thermal-Fluid Sciences• Micro/Nano-Fluidics
PositionAssociate ProfessorDepartment of Mechanical & Energy Engineering
Phone(940) 369-5929
Electrowetting Solar Cell
Dual-axis tracking without mechanical moving parts
Dr. Jaehyung Ju Energy Harvesting with Dielectric Elastomers
♦ Nonlinear constitutive modeling of electro-active polymers for energy harvesting
Department of Mechanical and Energy Engineering, University of North Texas | Denton, Texas, USA
PositionAssistant Professor
Phone(940) 565-2118
GroupLaboratory of Advanced Tire Technology (LATT)
x1x2
x3
0 0
0 1 0
0 0 1
F11
22
0 0
0 0
0 0 0
σ
5% stretch 10% stretch 15% stretch1000V 7.18 16.14 27.081200V 10.33 23.24 39.001500V 16.15 36.30 60.94
Dr. Mihai G. Burzo Heat transfer in microelectronics
& nanostructures♦ Nanoscale Thermography:
non-invasive thermoreflectance based surface temperature mapping of active microelectronic devices at submicron and nanoscale levels
♦ Applications: Detect hot spots; diagnose performance of microelectronic devices; failure localization.
Department of Mechanical & Energy Engineering, University of North Texas | Denton, Texas, USA
PositionAssistant Professor
Phone(940) 369-5104
GroupMicroscale Heat Transfer Laboratory
CAMERA IMAGE
THERMAL IMAGE
Thermal Mapping (Gold Microresistor)
X, m
Y,
m
0 5 10 15
-20
-15
-10
-5
0
Failure Localization
FET CHANNEL
Brake in Gate oxide
Hot Spot Detection
MOSFET
Dr. Nandika D’Souza
Department of Mechanical & Energy Engineering, University of North Texas | Denton, Texas, USA
PositionProfessor
Phone(940) 565-2979
GroupPolymer Mechanical and Rheology Laboratory
“Cradle to cradle” bioproducts
Dr. Nandika D’Souza Polymer Composites
♦ Explore the fundamental properties that renewable resources provide so that we can replace with no loss of function non-renewable materials
♦ Investigate nano, micro and macroscale composites with hybrid reinforcement
Department of Mechanical & Energy Engineering, University of North Texas | Denton, Texas, USA
PositionProfessor
Phone(940) 565-2979
GroupPolymer Mechanical and Rheology Laboratory
30 40 50 60 70 80 90 100 110
0
1x109
2x109
3x109
4x109
E' (
Pa
)
Temperature (C)
PLLA KF-I A B C D
20 30 40 50 60 70 80 90 100 1100
1x108
2x108
3x108
4x108
5x108
6x108
E "
(P
a)
Temperature (oC)
PLLA KF-IA B C D
FIBER AGE
Increased stiffness and energy absorption through controlled
fiber cross-sectional and surface architecture
Dr. Stevens M. Brumbley Engineering of High Biomass C4 Grasses for
Production of Bioplastics
Department of Biological Sciences, University of North Texas | Denton, Texas, USA
PositionAssociate Professor
Phone(940) 369-5072
GroupPlant Metabolic Engineering
Biopolymers produced by bacteria have properties similar to commercially available petrochemical based plastics.
We’ve used the bacterial gene to engineer the high biomass C4 grass sugarcane so it can produce and accumulate these plastics in cells of the leaf and stalk
Polyhydroxyalkanoates produced in sugarcane leaf cells
Dr. Michael Allen
Department of Biological Sciences, University of North Texas | Denton, Texas, USA
PositionAssistant Professor
Phone(940) 369-8247
GroupBiochemistry and Molecular Biology , Renewable Bioproducts
Biocomposites
♦ Renewable, biodegradable replacements for fiberglass, building panels, car parts, etc.
♦ Understanding microbial community function during fiber processing
♦ Retting process optimization for fiber yield, properties
Dr. Sheldon Q. ShiNatural Fiber Biocomposites Natural fibers to replace synthetic fibers for structural components, such
as natural fiber SMC, etc. Cellulosic natural fiber evalaution Bioresin synthesis from renewable bioresources, such as soybean, etc. Adhesion durability and interfacial bonding, surface energy
characterization
Department of Mechanical and Energy Engineering, University of North Texas | Denton, Texas, USA
PositionAssociate Professor
Phone(940) 565-2031
GroupRenewable Bioproducts
* Light weight* Low cost* Less reliance on petroleum
resource* Environmental friendly
Single fiber testing
Dr. Sheldon Q. ShiCellulose Nanocomposites Nanophase treatment of natural fiber for functional composites,
such as anti static, anti radiation, anti permeation, anti microbial, de-toxication, and with enhanced or reduced thermal conductivities
Cellulose nanofiber / nano whisker
PositionAssociate Professor
Phone(940) 565-2031
GroupRenewable Bioproducts
Nanoparticle deposited on the fiber surface
Cellulose nanofiber process
Department of Mechanical and Energy Engineering, University of North Texas | Denton, Texas, USA
Anti-blood, oil permeation
Magnetic bio-absorbent
Anti static gloves
Dr. Nigel Shepherd Semiconductors, Electronic and Optical Thin Films:
Materials and Device Physics♦ Organic Light Emitting Diodes:
• Red, Blue, Green: Emissive Displays• White: Solid State Lighting
♦ Flexible optoelectronic devices: flexible displays and phototherapy bandages
Department of Materials Science & Engineering, University of North Texas | Denton, Texas, USA
PositionAssistant Professor
Phone(940) 369-7714
GroupOptoelectronics and Thin Films Laboratory (OFTL)
Dr. Nigel Shepherd♦ Heterojunction solar cells
• Ge, GaAs, GaP, InAs, InP ♦ Multilayer graphene HEMTs
• gate oxide deposition• contact influence on mobility
♦ P-type ZnO for inorganic LEDs, GaN, ZnS
Department of Materials Science & Engineering, University of North Texas | Denton, Texas, USA
Pulsed laser deposition, RF and DC sputtering, Physical vapor deposition, Atomic layer deposition
PositionAssistant Professor
Phone(940) 369-7714
GroupOptoelectronics and Thin Films Laboratory (OFTL)
Dr. Michael Allen
Department of Biological Sciences, University of North Texas | Denton, Texas, USA
PositionAssistant Professor
Phone(940) 369-8247
GroupBiochemistry and Molecular Biology , Renewable Bioproducts
Biofuels
♦ Conversion of lignocellulosic feedstocks to biofuels
♦ Genetic engineering of defined microbial communities
♦ Understanding bacterial responses to stress for process optimization
Interfacial electron transport in hybrid polymer-oxide solar cells.
Dr. W. Justin Youngblood
Department of Chemistry, University of North Texas | Denton, Texas, USA
PositionAssistant Professor
Phone(940) 369-8289
GroupOrganic/Molecular Semiconductors and Excitonic Solar Cells
♦ Acceptor-Sensitizers mediate electron transport between p-type semiconductive polymer and n-type metal oxide semiconductors
♦ Solar cell improvement tracks with redox potential of the sensitizer.
ZnO nanorods TiO2 (rutile) nanorods Enhanced current & voltage
Dye-sensitized solar cells using p-type NiO.
Dr. W. Justin Youngblood
Department of Chemistry, University of North Texas | Denton, Texas, USA
PositionAssistant Professor
Phone(940) 369-8289
GroupOrganic/Molecular Semiconductors and Excitonic Solar Cells
♦ Photoinduced hole transfer from p-type Nickel Oxide (NiO) to acceptor-sensitizers based on fullerene and acenequinone compounds.
♦ New morphologies of nanostructured NiO.♦ Polymer-oxide solar cells using n-type polymers.
NiO nanowhiskers
Dr. Elias Kougianos III-V Device Physics
♦ Efficient numerical techniques for the self-consistent solution of Schrödinger-Poisson in III-V heterostructures.
♦ Interface handling at III-V boundaries.
♦ Transverse energy effects in III-V devices.
♦ Applications to resonant tunnel diodes.
Department of Engineering Technology, University of North Texas | Denton, Texas, USA
PositionAssociate Professor
Phone(940) 891-6708
GroupNano-System Design Laboratory (NSDL)
Selected references: [1] Kougianos et al. “Discretization Techniques for the Efficient Solution of the Eigenvalue Problem in Heterostructures”, Wiley InterScience International Journal of Numerical Modelling: Electronic Networks, Devices and Fields (IJNM), Vol. 22, No. 1, January/February 2009, pp. 1-21.[2] Kougianos et al. “The Effect of Transverse Energy on Electronic Bound States in Heterostructure Quantum Wells”, Semiconductor Science and Technology, Vol. 21, No. 10, October 2006, pp. 1472-1477.
Dr. Gayatri Mehta Energy-Aware Next-Generation Portable/Wearable Computing Platforms
Department of Electrical Engineering, University of North Texas | Denton, Texas, USA
PositionAssistant Professor
Phone(940) 369-5118
GroupPower Aware Computing Health
MonitoringAerospace SafetyMultimedia
Dr. Saraju P. Mohanty
Department of Computer Science & Engineering, University of North Texas | Denton, Texas, USA
PositionAssociate Professor
Phone(940) 565-3276
Group
Design and CAD for Low-Power High-Performance Nanoscale Digital and Analog/Mixed-Signal VLSI:
Power, Leakage, and Performance Modeling of Nanoscale Digital and Analog/Mixed-Signal Circuits
Optimization of Nanoscale Digital and Analog/Mixed-Signal Circuits
VLSI Architecture for Multimedia Processing
