A5013820288- Graphene research and applications
- 2D Materials and Applications
- Boron and Carbon Nanomaterials Research
- MXene and MAX Phase Materials
- Diamond and Carbon-based Materials Research
- Thermal properties of materials
- Gas Sensing Nanomaterials and Sensors
- Advanced Sensor and Energy Harvesting Materials
- ZnO doping and properties
- Metal and Thin Film Mechanics
- Ga2O3 and related materials
- Advanced Chemical Sensor Technologies
- Advanced Photocatalysis Techniques
- Force Microscopy Techniques and Applications
- Nanopore and Nanochannel Transport Studies
- Membrane Separation Technologies
- GaN-based semiconductor devices and materials
- Transition Metal Oxide Nanomaterials
- Covalent Organic Framework Applications
- Topological Materials and Phenomena
- Metal-Organic Frameworks: Synthesis and Applications
Rice University
2021-2025
Max Planck Institute for the Structure and Dynamics of Matter
2023
University of Virginia
2023
United States Naval Research Laboratory
2023
DEVCOM Army Research Laboratory
2022-2023
United States Army Combat Capabilities Development Command
2022-2023
Oak Ridge National Laboratory
2022-2023
Center for Free-Electron Laser Science
2023
Flatiron Health (United States)
2023
Cornell University
2023
Covalent organic frameworks (COFs) are a promising class of crystalline polymer networks that useful due to their high porosity, versatile functionality, and tunable architecture. Conventional solution-based methods producing COFs marred by slow reactions produce powders difficult process into adaptable form factors for functional applications, there is need facile fast synthesis techniques making ordered covalent framework (COF) thin films. In this work, we report chemical vapor deposition...
Here we study the controlled growth of ultrathin molybdenum dioxide (MoO2) flakes, a metallic analogue widely studied transition metal dichalcogenide MoS2. This demonstrates three distinct MoO2 polymorphs (monoclinic, tetragonal, and newly identified hexagonal phase) using physical vapor deposition. Comprehensive characterization through atomic force microscopy, Raman spectroscopy, X-ray photoelectron transmission electron microscopy confirms their unique structures validates observed...
2D materials, given their form-factor, high surface-to-volume ratio, and chemical functionality have immense use in sensor design. Engineering heterostructures can result robust combinations of desirable properties but design methodologies require careful considerations about material orientation to maximize response. This study introduces a approach that combines the excellent electrical transport transduction graphite film with reactivity derived from edge sites semiconducting molybdenum...
As wearable electronics have gained momentum in the past few years, there is a dire need for smart, responsive, and, most importantly, affordable sensors biological monitoring. One such noninvasive method to gauge body metabolism via breath analysis. In successful attempt sense and record relative humidity levels (%RH) nasal oral breath, this work presents an economical route fabricate sensor with high sensitivity response time of ∼1 s. The consists flexible backbone electrospun...
Hexagonal boron nitride (h-BN) nanosheets are grown at room temperature by pulsed laser deposition that exhibits remarkable functional properties, creating a scenario for “h-BN on demand” under frugal thermal budget, essential nanotechnology.
Wide and ultrawide-bandgap semiconductors lie at the heart of next-generation high-power, high-frequency electronics. Here, we report growth boron nitride (BN) thin films on wide-bandgap gallium (GaN) by pulsed laser deposition. Comprehensive spectroscopic (core level valence band x-ray photoelectron spectroscopy, Fourier-transform infrared Raman) microscopic (atomic force microscopy scanning transmission electron microscopy) characterizations confirm BN GaN. Optically, observed that BN/GaN...
A brief overview of quantum materials and their prospects for applications, in the near, mid, far-term areas information science, spintronics, valleytronics, twistronics those involving topology are covered this perspective. The material processing challenges that will modulate realism applications be discussed as well.
Heterostructures based on ultrawide-bandgap (UWBG) semiconductors $(\mathrm{bandgap}>4.0\phantom{\rule{0.28em}{0ex}}\mathrm{eV})$, such as BN and diamond, hold significant importance for the development of high-power electronics in next generation. However, achieving situ heteroepitaxy BN/diamond or vice versa remains exceptionally challenging due to complex growth kinetics involved. In this work, we grew thin film (100) single-crystal diamonds using pulsed laser deposition investigated...
Abstract Understanding the emergent electronic structure in twisted atomically thin layers has led to exciting field of twistronics. However, practical applications such systems are challenging since specific angular correlations between must be precisely controlled and have single crystalline with uniform atomic ordering. Here, an alternative, simple, scalable approach is suggested, where nanocrystallinetwo‐dimensional (2D) film on 3D substrates yields twisted‐interface‐dependent...
Room temperature growth of two-dimensional van der Waals (2D-vdW) materials is indispensable for state-of-the-art nanotechnology. The low supersedes the requirement elevated accompanied with high thermal budgets. Moreover, electronic applications, or room reduces possibility intrinsic film-substrate interfacial diffusion related deterioration functional properties and consequent device performance. Here, we demonstrated ultrawide-bandgap boron nitride (BN) at by using pulsed laser deposition...
Understanding the emergent electronic structure in twisted atomically thin layers has led to exciting field of twistronics. However, practical applications such systems are challenging since specific angular correlations between must be precisely controlled and have single crystalline with uniform atomic ordering. Here, we suggest an alternative, simple scalable approach where nanocrystalline two-dimensional (2D) film on three-dimensional (3D) substrates yield twisted-interface-dependent...
Heterostructures based on ultrawide-bandgap (UWBG) semiconductors (bandgap >4.0 eV), boron nitride (BN) and diamond are important for next-generation high-power electronics. However, in-situ hetero-epitaxy of BN/diamond or vice-versa remains extremely challenging, due to their non-trivial growth kinetics. Here, we have grown BN thin film (100) single crystal by pulsed laser deposition investigated its structural magnetic properties, optical refractive index, thermal conductivity. Structural...
Two-dimensional (2D) transition metal dichalcogenides (TMDCs) remain a topic of immense interest. Specifically, given their low operational switching costs, they find many niche applications in new computing architectures with the promise continued miniaturization. However, challenges lie Back End Line (BEOL) integration temperature and time compliance regarding current requirements for crystal growth. Additionally, deleterious time-consuming transfer processes multiple steps involved...
Two-dimensional van der Waals (2D-vdW) layered hexagonal boron nitride (h-BN) has gained tremendous research interest over recent years due to its unconventional domain growth morphology, fascinating properties and application potentials as an excellent dielectric layer for 2D-based nano-electronics. However, the unidirectional of h-BN thin films directly on insulating substrates remains significantly challenging because high-bonding anisotropicity complex kinetics than conventional growth,...