Tellurene: A Multifunctional Material for Midinfrared Optoelectronics
Name
Tellurene -- A Multifunctional Material for Mid-infrared Optoelectronics.pdf
Description
Accepted version
Size
1.15 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Deckoff-Jones, Skylar
Wang, Yixiu
Lin, Hongtao
Wu, Wenzhuo
Hu, Juejun
Date Issued
June 2019
Journal
ACS Photonics
Publisher
American Chemical Society (ACS)
Citation
Deckoff-Jones, Skylar et al. "Tellurene: A Multifunctional Material for Midinfrared Optoelectronics." ACS Photonics 6, 7 (June 2019): 1632–1638 © 2019 American Chemical Society
Version
Author's final manuscript
Abstract
The mid-infrared spectral band (2-20 μm) is of significant technological importance for thermal imaging, spectroscopic sensing, and free-space communications. Lack of optical materials compatible with common semiconductor substrates, however, presents a standing hurdle for integrated photonic device development in the mid-infrared domain. Tellurene, atomically thin crystals of elemental tellurium, is an emerging 2-D material amenable to scalable solution-based synthesis. It uniquely combines small and tunable bandgap energies, high carrier mobility, exceptionally large electro-optic activity, and superior chemical stability, making it a promising and versatile material platform for mid-infrared photonics. With these material properties in mind, we propose and design a waveguide-integrated tellurene photodetector and Pockels effect modulator. The photodetector boasts a record room temperature noise equivalent power of 0.03 fW/Hz1/2 at 3 μm wavelength, while the optimized modulator device claims a half-wave voltage-length product (V[subscript π]L) of 2.7 V·cm and a switching energy of 12.0 pJ/bit, both representing substantial improvements to current state-of-the-art devices.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1021/acsphotonics.9b00694
