217 citations · 496 across the 14 of their papers we have counts for
14 papers
Lock-In Infrared Thermography: Phase Analysis for Rapid, Wide-Range Thermal Conductivity Measurements
Ethan A. Scott, Jeffrey L. Braun, Jessica Reyes +5
We report on a phase-based lock-in thermography approach, combined with a multilayered thermal model (often employed in thermoreflectance analysis), to measure the thermal conducti…
Design of Ga2O3 Modulation Doped Field Effect Transistors
Michael Mastro, Marko J. Tadjer, Jihyun Kim +2
The design of beta-Ga2O3-based modulation doped field effect transistors (MODFETs) is discussed with a focus on the role of self-heating and resultant modification of the electron…
Assessment of the (010) -GaO Surface and Substrate Specification
Michael A. Mastro, Charles R. Eddy, Marko J. Tadjer +3
Recent breakthroughs in bulk crystal growth of the thermodynamically stable beta phase of gallium oxide (-GaO) have led to the commercialization of large-area beta-Ga$_2…
Multi-frequency coherent emission from superstructure thermal emitters
Guanyu Lu, Marko Tadjer, Joshua D. Caldwell +1
Long-range spatial coherence can be induced in thermal emitters by embedding a periodic grating into a material supporting propagating polaritons or dielectric modes. However, the…
III-Nitride Nanowire Based Light Emitting Diodes on Carbon Paper
Michael A. Mastro, Travis J. Anderson, Marko J. Tadjer +4
This article presents the use of flexible carbon substrates for the growth of III-nitride nanowire light emitters. A dense packing of gallium nitride nanowires were grown on a carb…
Opportunities and Challenges in MOCVD of β-Ga2O3 for Power Electronic Devices
M. A. Mastro, J. K. Hite, C. R. Eddy +4
Recent breakthroughs in bulk crystal growth of beta-Ga2O3 by the edge-defined film-fed technique has led to the commercialization of large-area beta-Ga2O3 substrates. Standard epit…
Simultaneous Evaluation of Heat Capacity and In-plane Thermal Conductivity of Nanocrystalline Diamond Thin Films
Luke Yates, Zhe Cheng, Tingyu Bai +6
As wide bandgap electronic devices have continued to advance in both size reduction and power handling capabilities, heat dissipation has become a significant concern. To mitigate…
Vibrational Coupling to Epsilon-Near-Zero Waveguide Modes
Thomas G. Folland, Guanyu Lu, A. Bruncz +3
Epsilon near zero modes offer extreme field enhancement that can be utilized for developing enhanced sensing schemes. However, demonstrations of enhanced spectroscopies have largel…
Integration of Atomic Layer Epitaxy Crystalline Ga2O3 on Diamond for Thermal Management
Zhe Cheng, Virginia D. Wheeler, Tingyu Bai +6
Ga2O3 has attracted great attention for electronic device applications due to its ultra-wide bandgap, high breakdown electric field, and large-area affordable substrates grown from…
Thermal Conductance across beta-Ga2O3-diamond Van der Waals Heterogeneous Interfaces
Zhe Cheng, Luke Yates, Jingjing Shi +3
Because of its ultrawide bandgap, high breakdown electric field, and large area affordable substrates grown from the melt, beta Ga2O3 has attracted great attention recently for pot…
Tunable Thermal Energy Transport across Diamond Membranes and Diamond-Si Interfaces by Nanoscale Graphoepitaxy
Zhe Cheng, Tingyu Bai, Jingjing Shi +14
The development of electronic devices, especially those that involve heterogeneous integration of materials, has led to increased challenges in addressing their thermal operational…
Temperature and Electric Field Induced Metal-Insulator Transition in Atomic Layer Deposited Vanadium Dioxide Thin Films
Marko J. Tadjer, Virginia D. Wheeler, Brian P. Downey +4
Amorphous vanadium dioxide (VO) films deposited by atomic layer deposition (ALD) were crystallized with an ex situ anneal at 660-670 C for 1-2 hours under a low oxygen pre…
Towards pristine graphene-metal interface and microstructures: Laser assisted direct patterning on Epitaxial graphene
A. Nath, M. Currie, V. D. Wheeler +11
Graphene-metal contact resistance is governed by both intrinsic and extrinsic factors. Intrinsically, both the density of states bottleneck near the Dirac point and carrier reflect…
Technique for the Dry Transfer of Epitaxial Graphene onto Arbitrary Substrates
Joshua D. Caldwell, Travis J. Anderson, James C. Culbertson +11
In order to make graphene technologically viable, the transfer of graphene films to substrates appropriate for specific applications is required. We demonstrate the dry transfer of…