title: Metal-Organic-Inorganic Nanocomposite Thermal Interface Materials with Ultralow Thermal Resistances.
abstract: As electronic devices get smaller and more powerful, energy density of energy storage devices increases continuously, and moving components of machinery operate at higher speeds, the need for better thermal management strategies is becoming increasingly important. The removal of heat dissipated during the operation of electronic, electrochemical, and mechanical devices is facilitated by high-performance thermal interface materials (TIMs) which are utilized to couple devices to heat sinks. Herein, we report a new class of TIMs involving the chemical integration of boron nitride nanosheets (BNNS), soft organic linkers, and a copper matrix-which are prepared by the chemisorption-coupled electrodeposition approach. These hybrid nanocomposites demonstrate bulk thermal conductivities ranging from 211 to 277 W/(m K), which are very high considering their relatively low elastic modulus values on the order of 21.2-28.5 GPa. The synergistic combination of these properties led to the ultralow total thermal resistivity values in the range of 0.38-0.56 mm2K/W for a typical bond-line thickness of 30-50 μm, advancing the current state-of-art transformatively. Moreover, its coefficient of thermal expansion (CTE) is 11 ppm/K, forming a mediation zone with a low thermally induced axial stress due to its close proximity to the CTE of most coupling surfaces needing thermal management.
authors.affiliation: Department of Materials Science and Engineering, Texas A&M University , 3003 TAMU, College Station, Texas 77843-3003, United States.
authors.forename: Cengiz
authors.initials: C
authors.lastname: Yegin
authors.affiliation: Artie McFerrin Department of Chemical Engineering, Texas A&M University , 3122 TAMU, College Station, Texas 77843-3122, United States.
authors.forename: Nirup
authors.initials: N
authors.lastname: Nagabandi
authors.affiliation: National Renewable Energy Laboratory (NREL), 15013 Denver West Parkway, Golden, Colorado 80401, United States.
authors.forename: Xuhui
authors.initials: X
authors.lastname: Feng
authors.affiliation: National Renewable Energy Laboratory (NREL), 15013 Denver West Parkway, Golden, Colorado 80401, United States.
authors.forename: Charles
authors.initials: C
authors.lastname: King
authors.affiliation: CNR-IMM, Institute Microelectronics and Microsystems, National Council for Research , Via Monteroni, 73100 Lecce, Italy.|Materials Science and Engineering Department, University of Texas at Dallas , 800 W. Campbell Rd., Richardson, Texas 75080, United States.
authors.forename: Massimo
authors.initials: M
authors.lastname: Catalano
authors.affiliation: Department of Materials Science and Engineering, Texas A&M University , 3003 TAMU, College Station, Texas 77843-3003, United States.
authors.forename: Jun Kyun
authors.initials: JK
authors.lastname: Oh
authors.affiliation: Department of Physics and Astronomy and Institute for Quantum Science and Engineering, Texas A&M University , 4242 TAMU, College Station, Texas 77843-4242, United States.
authors.forename: Ansam J
authors.initials: AJ
authors.lastname: Talib
authors.affiliation: Artie McFerrin Department of Chemical Engineering, Texas A&M University , 3122 TAMU, College Station, Texas 77843-3122, United States.
authors.forename: Ethan A
authors.initials: EA
authors.lastname: Scholar
authors.affiliation: Department of Chemistry, Texas A&M University , 3012 TAMU, College Station, Texas 77843-3012, United States.
authors.forename: Stanislav V
authors.initials: SV
authors.lastname: Verkhoturov
authors.affiliation: Department of Materials Science and Engineering, Texas A&M University , 3003 TAMU, College Station, Texas 77843-3003, United States.|Artie McFerrin Department of Chemical Engineering, Texas A&M University , 3122 TAMU, College Station, Texas 77843-3122, United States.
authors.forename: Tahir
authors.initials: T
authors.lastname: Cagin
authors.affiliation: Department of Physics and Astronomy and Institute for Quantum Science and Engineering, Texas A&M University , 4242 TAMU, College Station, Texas 77843-4242, United States.
authors.forename: Alexei V
authors.initials: AV
authors.lastname: Sokolov
authors.affiliation: Materials Science and Engineering Department, University of Texas at Dallas , 800 W. Campbell Rd., Richardson, Texas 75080, United States.
authors.forename: Moon J
authors.initials: MJ
authors.lastname: Kim
authors.affiliation: Microsystems Technology Office, Defense Advanced Research Project Agency , 675 N Randolph St., Arlington, Virginia 22203, United States.
authors.forename: Kaiser
authors.initials: K
authors.lastname: Matin
authors.affiliation: National Renewable Energy Laboratory (NREL), 15013 Denver West Parkway, Golden, Colorado 80401, United States.
authors.forename: Sreekant
authors.initials: S
authors.lastname: Narumanchi
authors.affiliation: Department of Materials Science and Engineering, Texas A&M University , 3003 TAMU, College Station, Texas 77843-3003, United States.|Artie McFerrin Department of Chemical Engineering, Texas A&M University , 3122 TAMU, College Station, Texas 77843-3122, United States.
authors.forename: Mustafa
authors.identifier: http://orcid.org/0000-0001-7343-2187
authors.initials: M
authors.lastname: Akbulut
keywords: boron nitride nanosheets; hybrid nanocomposites; nanomaterials; nanostructures; thermal conductivity; thermal interface materials; thermal management