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PdSe2: Pentagonal Two-Dimensional Layers with High Air Stability for Electronics
Open accessAbstract
Most studied two-dimensional (2D) materials exhibit isotropic behavior due to high lattice symmetry; however, lower-symmetry 2D materials such as phosphorene and other elemental 2D materials exhibit very interesting anisotropic properties. In this work, we report the atomic structure, electronic properties, and vibrational modes of few-layered PdSe 2 exfoliated from bulk crystals, a pentagonal 2D layered noble transition metal dichalcogenide with a puckered morphology that is air-stable. Micro-absorption optical spectroscopy and first-principles calculations reveal a wide band gap variation in this material from 0 (bulk) to 1.3 eV (monolayer). The Raman-active vibrational modes of PdSe 2 were identified using polarized Raman spectroscopy, and a strong interlayer interaction was revealed from large, thickness-dependent Raman peak shifts, agreeing with first-principles Raman simulations. Field-effect transistors made from the few-layer PdSe 2 display tunable ambipolar charge carrier conduction with a high electron field-effect mobility of ∼158 cm 2 V –1 s –1, indicating the promise of this anisotropic, air-stable, pentagonal 2D material for 2D electronics.
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Cites
Generalized Gradient Approximation Made Simple
Perdew, J. P., Burke, K., & Ernzerhof, M. (1996) · Physical Review Letters · doi:10.1103/physrevlett.77.3865 · Cited by 215,824
Electronics and optoelectronics of two-dimensional transition metal dichalcogenides
Wang, Q. H., Kalantar-Zadeh, K., Kis, A., Coleman, J. N., & Strano, M. S. (2012) · Nature Nanotechnology · doi:10.1038/nnano.2012.193 · Cited by 16,374
Cited by
Progress, Challenges, and Opportunities for 2D Material Based Photodetectors
Long, M., Wang, P., Fang, H., & Hu, W. (2019) · Advanced Functional Materials · doi:10.1002/adfm.201803807 · Cited by 1,598
Liang, S., Cheng, B., Cui, X., & Miao, F. (2020) · Advanced Materials · doi:10.1002/adma.201903800 · Cited by 537
Zeng, L., Chen, Q., Zhang, Z., Wu, D., Yuan, H., Li, Y., Qarony, W., Lau, S. P., Luo, L., & Tsang, Y. H. (2019) · Advanced Science · doi:10.1002/advs.201901134 · Cited by 465
Emerging in‐plane anisotropic two‐dimensional materials
Li, L., Han, W., Pi, L., Niu, P., Han, J., Wang, C., Su, B., Li, H., Xiong, J., Bando, Y., et al. (2019) · InfoMat · doi:10.1002/inf2.12005 · Cited by 382
2D Metallic Transition‐Metal Dichalcogenides: Structures, Synthesis, Properties, and Applications
Zhao, B., Shen, D., Zhang, Z., Lu, P., Hossain, M., Li, J., Li, B., & Duan, X. (2021) · Advanced Functional Materials · doi:10.1002/adfm.202105132 · Cited by 359
Palladium Diselenide Long-Wavelength Infrared Photodetector with High Sensitivity and Stability
Long, M., Wang, Y., Wang, P., Zhou, X., Xia, H., Luo, C., Huang, S., Zhang, G., Yan, H., Fan, Z., et al. (2019) · ACS Nano · doi:10.1021/acsnano.8b09476 · Cited by 309
Jiang, S., Yang, J., Zhu, L., Xie, J., Guo, W., Zhao, E., Chen, C., Wang, T., Su, F., Zhang, Y., et al. (2022) · Nano Research · doi:10.1007/s12274-022-4168-y · Cited by 10
Metadata
- Authors
- Oyedele, A. D., Yang, S., Liang, L., Puretzky, A. A., Wang, K., Zhang, J., Yu, P., Pudasaini, P. R., Ghosh, A. W., Liu, Z., Rouleau, C. M., Sumpter, B. G., Chisholm, M. F., Zhou, W., Rack, P. D., Geohegan, D. B., & Xiao, K.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-09-26
- Volume
- 139
- Issue
- 40
- Pages
- 14090-14097
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2752167005
- Cited by
- 766
- References
- 2
- FWCI
- 20.78
- Type
- journal article
- Language
- en
- Open access
- green
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