ORALS
SESSION:
NanomaterialsThuAM-R3
| Echegoyen International Symposium (8th Intl. Symp. on Synthesis & Properties of Nanomaterials for Future Energy Demands) |
| Thu. 30 Nov. 2023 / Room: Dreams 3 | |
| Session Chairs: Miguel A. Alario Franco; Mark Hersam; Session Monitor: TBA |
12:00: [NanomaterialsThuAM02] OS Invited
MIXED-DIMENSIONAL HETEROSTRUCTURES FOR ELECTRONIC AND ENERGY TECHNOLOGIES Mark Hersam1 ;
1Northwestern University, Evanston, United States;
Paper Id: 7
[Abstract] Layered two-dimensional (2D) materials interact primarily via van der Waals bonding, which has created new opportunities for heterostructures that are not constrained by epitaxial lattice matching requirements [1]. However, since any passivated, dangling bond-free surface interacts with another via non-covalent forces, van der Waals heterostructures are not limited to 2D materials alone. In particular, 2D materials can be integrated with a diverse range of other materials, including those of different dimensionality, to form mixed-dimensional van der Waals heterostructures [2]. Furthermore, chemical functionalization provides additional opportunities for tailoring the properties of 2D materials [3] and the degree of coupling across heterointerfaces [4]. In this manner, a variety of optoelectronic and energy applications can be enhanced including photodetectors, optical emitters, supercapacitors, and batteries [5-7]. Due to their unique physics, mixed-dimensional heterostructures also enable unprecedented electronic and quantum functionality to be realized including gate-tunable Gaussian heterojunctions, neuromorphic memtransistors, and high-purity single-photon emitters [8-10]. In addition to technological implications for electronic and energy technologies, this talk will explore several fundamental issues including band alignment, doping, trap states, and charge/energy transfer across van der Waals heterointerfaces.
References:
[1] D. Lam, et al., ACS Nano, 16, 7144 (2022).
[2] D. Jariwala, et al., Nature Materials, 16, 170 (2017).
[3] S. H. Amsterdam, et al., Journal of Physical Chemistry Letters, 12, 4543 (2021).
[4] S. Padgaonkar, et al., Accounts of Chemical Research, 53, 763 (2020).
[5] D. Lam, et al., ACS Nano, 16, 11315 (2022).
[6] K.-Y. Park, et al., Advanced Materials, 34, 2106402 (2022).
[7] N. S. Luu, et al., Accounts of Materials Research, 3, 511 (2022).
[8] V. K. Sangwan and M. C. Hersam, Nature Nanotechnology, 15, 517 (2020).
[9] X. Yan, et al., Advanced Materials, 34, 2108025 (2022).
[10] M. I. B. Utama, et al., Nature Communications, 14, 2193 (2023).
