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- Title
Effect of ion intercalation and electrochemisorption on nonlinear optical absorption of MoO<sub>3</sub>: A comparative study of six different ions.
- Authors
Hou, Ruipeng; Li, Hui; Zhang, Chi; Huang, Zhipeng; Humphrey, Mark G.
- Abstract
Electrochemical modulation of nonlinear optical (NLO) absorption has recently garnered significant attention. In this work, we demonstrate the effective modulation of the third-order NLO absorption of layered molybdenum trioxide (MoO3) by cation intercalation. Upon application of different negative voltages to samples in different electrolytes, we observe varying degrees of enhancement in MoO3's nonlinear absorption corresponding to different cations and different electrochemical processes. Cation intercalation of H + , Li + , Na + , K + , and Mg 2 + is found to be more effective in enhancing the nonlinear absorption of MoO3 than electrochemisorption of Al 3 + cations. Notably, Li + intercalation leads to the most significant performance improvement, with an enhancement of 11.6 times and a nonlinear absorption coefficient of − 7 9. 8 8 ± 1 1. 2 1 cm GW − 1 . This improvement is ascribed to the increasing number of defect states in MoO3 during ion intercalation, which strengthens its saturation absorption behavior. Our work provides valuable insights into the electrically controlled NLO performance of MoO3 and can be applied to other similar materials.
- Subjects
LIGHT absorption; ABSORPTION coefficients; IONS; OPTICAL modulation; TRIOXIDES
- Publication
Journal of Nonlinear Optical Physics & Materials, 2024, Vol 33, Issue 1, p1
- ISSN
0218-8635
- Publication type
Article
- DOI
10.1142/S0218863523400064