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Guzelturk B, Kamysbayev V, Wang D, Hu H, Li R, King SB, Reid AH, Lin MF, Wang X, Walko DA, Zhang X, Lindenberg A, Talapin DV. Understanding and Controlling Photothermal Responses in MXenes. NANO LETTERS 2023; 23:2677-2686. [PMID: 36917456 DOI: 10.1021/acs.nanolett.2c05001] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
MXenes have the potential for efficient light-to-heat conversion in photothermal applications. To effectively utilize MXenes in such applications, it is important to understand the underlying nonequilibrium processes, including electron-phonon and phonon-phonon couplings. Here, we use transient electron and X-ray diffraction to investigate the heating and cooling of photoexcited MXenes at femtosecond to nanosecond time scales. Our results show extremely strong electron-phonon coupling in Ti3C2-based MXenes, resulting in lattice heating within a few hundred femtoseconds. We also systematically study heat dissipation in MXenes with varying film thicknesses, chemical surface terminations, flake sizes, and annealing conditions. We find that the thermal boundary conductance (TBC) governs the thermal relaxation in films thinner than the optical penetration depth. We achieve a 2-fold enhancement of the TBC, reaching 20 MW m-2 K-1, by controlling the flake size or chemical surface termination, which is promising for engineering heat dissipation in photothermal and thermoelectric applications of the MXenes.
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Affiliation(s)
- Burak Guzelturk
- X-ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Vladislav Kamysbayev
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Di Wang
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Huicheng Hu
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Ruiyu Li
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Sarah B King
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Alexander H Reid
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Ming-Fu Lin
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Xijie Wang
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Donald A Walko
- X-ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Xiaoyi Zhang
- X-ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Aaron Lindenberg
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Dmitri V Talapin
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
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Chung YK, Lee J, Lee WG, Sung D, Chae S, Oh S, Choi KH, Kim BJ, Choi JY, Huh J. Theoretical Study of Anisotropic Carrier Mobility for Two-Dimensional Nb 2Se 9 Material. ACS OMEGA 2021; 6:26782-26790. [PMID: 34661032 PMCID: PMC8515826 DOI: 10.1021/acsomega.1c03728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
Finding new materials with satisfying all the desired criteria for nanodevices is an extremely difficult work. Here, we introduce a novel Nb2Se9 material as a promising candidate, capable of overcoming some physical limitations, such as a suitable band gap, high carrier mobility, and chemical stability. Unlike graphene, it has a noticeable band gap and no dangling bonds at surfaces that deteriorate transport properties, owing to its molecular chain structure. Using density functional theory (DFT) calculations with deformation potential (DP) theory, we find that the electron mobility of 2D Nb2Se9 across the axis direction reaches up to 2.56 × 103 cm2 V-1 s-1 and is approximately 2.5-6 times higher than the mobility of other 2D materials, such as MoS2, black phosphorous, and InSe, at room temperature. Moreover, the mobility of 2D Nb2Se9 is highly anisotropic (μ a /μ c ≈ 6.5). We demonstrate the potential of 2D Nb2Se9 for applications in nanoscale electronic devices and, possibly, mid-infrared photodetectors.
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Affiliation(s)
- You Kyoung Chung
- Department
of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Junho Lee
- Department
of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Weon-Gyu Lee
- Department
of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Dongchul Sung
- Department
of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sudong Chae
- School
of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Seungbae Oh
- School
of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Kyung Hwan Choi
- School
of Advanced Institute of Nanotechnology, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Bum Jun Kim
- School
of Advanced Institute of Nanotechnology, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jae-Young Choi
- School
of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
- School
of Advanced Institute of Nanotechnology, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Joonsuk Huh
- Department
of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
- School
of Advanced Institute of Nanotechnology, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Institute
of Quantum Biophysics, Sungkyunkwan University, Suwon 16419, Republic of Korea
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