Ashutosh Giri’s Research Profile

Giri, Ashutosh, 2021

Recent Grants1

11/3/2021. PI.  American Chemical Society. “Thermal transport in covalent organic frameworks: Experiments and simulations on the fundamental role of gas adsorbates, with applications to natural gas storage.”
9/20/2022. PI. U.S. Office of Naval Research “Unraveling the microscopic dynamics of coupled energy states in nanostructures”
7/7/22. Co-PI. University of Connecticut. “NIUVT2021:  COMP 45: Modeling experiments and prototype development of near theoretical capacity lithium ion batteries for unmanned underwater vehicles”
7/22/2021. PI. National Science Foundation. “Thermally Functional and Reversible Thermal Conductivity Switching In Nanoporous Molecular Frameworks”
6/24/2021. PI. Office of Naval Research. “YIP Unraveling the microscopic dynamics of coupled energy states in nanostructures.”

Recent Publications1

Thakur S, Giri A. Role of Anharmonicity in Dictating the Thermal Boundary Conductance across Interface Composed of Two-Dimensional Materials. Physical Review Applied, 2023; 20(1), 014039. doi: 10.1103/PhysRevApplied.20.014039
Giri A, Walton SG, Tomko J, et al. Ultrafast and Nanoscale Energy Transduction Mechanisms and Coupled Thermal Transport across Interfaces. ACS nano, 2023. doi: 10.1021/acsnano.3c02417
Rahman MA, Thakur S, Hopkins PE, Giri A. Engineering the Electronic and Thermal Properties of Two-Dimensional Covalent Organic Frameworks. The Journal of Physical Chemistry C, 2023. doi: 10.1021/acs.jpcc.3c00652
Thakur S, Giri A. Origin of Ultralow Thermal Conductivity in Metal Halide Perovskites. ACS Applied Materials & Interfaces, 2023. doi: 10.1021/acsami.3c03499
Dionne JC, Rahman MA, Giri A. Graphullerite: A Thermally Conductive and Remarkably Ductile Allotrope of Polymerized Carbon. ACS Omega, 2023. doi: 10.1021/acsomega.3c01412
Karna P, Giri A. Effects of intense laser irradiation on the thermal transport properties of metals. Physical Review B, 2023; 107(9), 094301. doi: 10.1103/PhysRevB.107.094301
Hoque MSB, Brummel IA, Hoglund ER, et al. Interface-independent sound speed and thermal conductivity of atomic-layer-deposition-grown amorphous AlN/Al2O3 multilayers with varying oxygen composition. Physical Review Materials, 2023; 7(2), 025401. doi: 10.1103/PhysRevMaterials.7.025401
Meirzadeh E, Evans AM, Rezaee M, et al. A few-layer covalent network of fullerenes. Nature, 2023; 613(4942), 71-76. doi: 10.1038/s41586-022-05401-w
Karna P, Hoque MSB, Thakur S, Hopkins PE, Giri A. Direct Measurement of Ballistic and Diffusive Electron Transport in Gold. Nano Letters, 2023. doi: 10.1021/acs.nanolett.2c03781
Giri A, Karna P, Hopkins PE. Exceptionally Enhanced Thermal Conductivity of Aluminum Driven by Extreme Pressures: A First-Principles Study. The Journal of Physical Chemistry Letters, 2022; 13, 10918-10923. doi: 10.1021/acs.jpclett.2c03090
Giri A, Thakur S, Mattoni A. Molecular Rotor-Rotor Heat Diffusion at the Origin of the Enhanced Thermal Conductivity of Hybrid Perovskites at High Temperatures. Chemistry of Materials, 2022. doi: 10.1021/acs.chemmater.2c02124
Rahman MA, Dionne CJ, Giri A. Thermally Conductive Self-Healing Nanoporous Materials Based on Hydrogen-Bonded Organic Frameworks. Nano Letters, 2022. doi: 10.1021/acs.nanolett.2c03032
Giri A, Dionne CJ. Magnesium Doping Enhances Thermal Conductivity of Polymerized Fullerene Crystals. The Journal of Physical Chemistry C, 2022; 126(40), 17406-17414. doi: 10.1021/acs.jppc.2c05503
Thakur S, Dionne CJ, Karna P, et al. Density and atomic coordination dictate vibrational characteristics and thermal conductivity of amorphous silicon carbide, Physical Review Materials, 2022; 6(9); 094601. doi: 10.1103/PhysRevMaterials.6.094601
Rahman MA, Dionne CJ, Giri A. Pore Size Dictates Anisotropic Thermal Conductivity of Two-Dimensional Covalent Organic Frameworks with Adsorbed Gases, ACS Applied Materials & Interfaces, 2022. doi: 10.1021/acsami.2c03019
Giri A, Dionne CJ, Hopkins PE. Atomic coordination dictates vibrational characteristics and thermal conductivity in amorphous carbon. npj Computational Materials, 2022; 8(1), 1-7. doi: 10.1038/s41524-022-00741-7
Dionne CJ, Rahman MA, Hopkins PE, Giri A. Supramolecular Interactions Lead to Remarkably High Thermal Conductivities in Interpenetrated Two-Dimensional Porous Crystals. Nano Letters, 2022; 22(7), 3071-3076. doi: 10.1021/acs.nanolett.2c00420
DeCoster M, Babaei H, Jung SS, et al. Hybridization from Guest-Host Interactions Reduces the Thermal Conductivity of Metal-Organic Frameworks. Journal of the American Chemical Society, 2022. doi: 10.1021/jacs.1c12545
Giri A, Evans AM, Rahman MA, McGaughey AJH, Hopkins PE. Highly Negative Poisson’s Ratio in Thermally Conductive Covalent Organic Frameworks.  ACS nano, 2022. doi: 10.1021/acsnano.1c09833
Hopkins EP , Tomko JA, Giri A. Quasi-harmonic theory for phonon thermal boundary conductance at high temperatures. Journal of Applied Physics, 2022;131(1), 015101. doi: 10.1063/5.0071429 
Thakur S, Dai Z, Karna P, Giri A. Tailoring the thermal conductivity of two-dimensional metal halide perovskites, Materials Horizons, 2022. doi: 10.1039/D2MH01070D
Rahman MA, Giri A. Uniquely anisotropic mechanical and thermal responses of hybrid organic-inorganic perovskites under uniaxial strain. The Journal of Chemical Physics, 2021; 155(12), 124703. doi: 10.1063/5.0065207
Evans AM, Giri A, Sangwan VK, et al. Thermally conductive ultra-low-k dielectric layers based on two-dimensional covalent organic frameworks. Nature Materials, 2021; 1-7. doi: 10.1038/s41563-021-00934-3
Giri A, Hopkins PE. Heat Transfer Mechanisms and Tunable Thermal Conductivity Anisotropy in Two-Dimensional Covalent Organic Frameworks with Adsorbed Glass. Nano Letters, 2021. doi: 10.1021/acs.nanolett.1c01863
Warzoha RJ, Wilson AA, Donovan BF, et al. Applications and impacts of nanoscale thermal transport in electronics packaging. Journal of Electronic Packaging, 2021; 143(2), 020804. doi: 10.1115/1.4049293
Braun JL, King SW, Hoglund ER, et al. Hydrogen effects on the thermal conductivity of delocalized vibrational modes in amorphous silicon nitride (a-SiNₓ : H). Physical Review Materials, 2021; 5(3), 035604. doi: 10.1103/PhysRevMaterials.5.035604
Giri A, Cheaito R, Gaskins JT, et al. Thickness-Independent Vibrational Thermal Conductance across Confined Solid-Solution Thin Films. ACS Applied Materials & Interfaces, 2021; 13(10), 12541-12549. doi: 10.1021/acsami.0c20608
Aryana K., Gaskins JT., Nag J., et al. Interface controlled thermal resistances of ultra-thin chalcogenide-based phase change memory devices. Nature Communications, 2021; 12(1), 1-11. doi: 10.1038/s41467-020-20661-8
Giri A., Origins of pressure-induced enhancement in thermal conductivity of hybrid inorganic-organic perovskites. Nanoscale, 2021; 13(2), 685-691. doi: 10.1039/D0NR08776A
Donovan BF., Warzoha RJ., Cosby T., et al. Strained Polymer Thermal Conductivity Enhancement Counteracted by Additional Off-Axis Strain. Macromolecules, 2020; 53(24), 11089-11097. doi: 10.1021/acs.macromol.0c01243
Rasel MAJ., Giri A., Olson DH., Ni C., Hopkins PE., Feser JP. Chain-Length Dependence of Thermal Conductivity in 2D Alkylammonium Lead Iodide Single Crystals. ACS Applied Materials & Interfaces, 2020; 12(48), 53705-53711. doi: 10.1021/acsami.0c10894
Krahl F., Giri A., Hoque MSB., Sederholm L., Hopkins PE., Karppinen M. Experimental Control and Statistical Analysis of Thermal Conductivity in ZnO-Benzene Multilayer Thin Films. The Journal of Physical Chemistry C, 2020; 124(45), 24731-24739. doi: 10.1021/acs.jpcc.0c06461
Giri A, Chou SS, Drury DE, et al. Molecular tail chemistry controls thermal transport in fullerene films. Physical Review Materials, 2020; 4(6), 065404. doi: 10.1103/PhysRevMaterials.4.065404
Koh YR, Cheng Z, Mamun A, et al. Bulk-like Intrinsic Phonon Thermal Conductivity of Micrometer-Thick AlN Films. ACS Applied Materials & Interfaces, 2020; 12(26), 29443-29450. doi: 10.1021/acsami.0c03978
Giri A, Hopkins GE. Achieving a better heat conductor. Nature Materials, 2020; 19(5), 482-484. doi: 10.1038/s41563-020-0658-z
Giri A, Chen AZ, Mattoni A, et al. Ultralow thermal conductivity of two-dimensional metal halide perovskites. Nano Letters, 2020; 20(5), 3331–3337. doi: 10.1021/acs.nanolett.0c00214
Giri A, Hopkins GE. A review of experimental and computational advances in thermal boundary conductance and nanoscale thermal transport across solid interfaces. Advanced Functional Materials, 2020; 30(8), 1903857. doi: 10.1002/adfm.201903857
Wang YS, Zhou X, Tomko JA, Giri A, Hopkins PE, Prezhdo OV. Electron–Phonon Relaxation at Au/Ti Interfaces Is Robust to Alloying: Ab Initio Nonadiabatic Molecular Dynamics. The Journal of Physical Chemistry C, 2019; 123(37), 22842-22850. doi: 10.1021/acs.jpcc.9b06914
Giri A, Hopkins PE. Resonant phonon modes in fullerene functionalized graphene lead to large tunability of thermal conductivity without impacting the mechanical properties. Journal of Applied Physics, 2019; 125(20), 205102. doi: 10.1063/1.5094061
Giri A, Gaskins JT, Wang Y-S, Prezhdo OV, Hopkins PE. First principles determination of ultrahigh electrical and thermal conductivity in free electron metals via pressure tuning the electron-phonon coupling factor. Physical Review B, 2019; 99(16), 165139. doi: 10.1103/PhysRevB.99.165139
Gaskins JT, Kotsonis G, Giri A, et al. Correction to Thermal Boundary Conductance Across Heteroepitaxial ZnO/GaN Interfaces: Assessment of the Phonon Gas Model. Nano Letters, 2019; 19(2), 1408-1408. doi: 10.1021/acs.nanolett.8b02837
Tomko JA, Olson DH, Giri A, et al. Nanoscale wetting and energy transmission at solid-liquid interfaces. Langmuir, 2019; 35, 2106-2114. doi: 10.1021/acs.langmuir.8b03675
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