Effect of ion intercalation and electrochemisorption on nonlinear optical absorption of MoO3: A comparative study of six different ions
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Published:2023-08-23
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Volume:
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ISSN:0218-8635
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Container-title:Journal of Nonlinear Optical Physics & Materials
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language:en
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Short-container-title:J. Nonlinear Optic. Phys. Mat.
Author:
Hou Ruipeng1,
Li Hui2,
Zhang Chi2,
Huang Zhipeng2ORCID,
Humphrey Mark G.3
Affiliation:
1. Henan Key Laboratory of Nanocomposites and Applications, Institute of Nanostructured Functional Materials, Huanghe Science and Technology College, Zhengzhou 450006, P. R. China
2. School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
3. Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
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[Formula: see text], Li[Formula: see text], Na[Formula: see text], K[Formula: see text], and Mg[Formula: see text] is found to be more effective in enhancing the nonlinear absorption of MoO3 than electrochemisorption of Al[Formula: see text] cations. Notably, Li[Formula: see text] intercalation leads to the most significant performance improvement, with an enhancement of 11.6 times and a nonlinear absorption coefficient of [Formula: see text][Formula: see text]cm[Formula: see text]GW[Formula: see text]. 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.
Funder
the Education Department Henan Province
National Natural Science Foundation of China
Natural Science Foundation of Shanghai
National Youth Talent Support Program of China
Fundamental Research Funds for the Central Universities
Australian Research Council
the Ministry of Education of China
111 Project
Innovation Program of Shanghai Municipal Education Commission
Publisher
World Scientific Pub Co Pte Ltd
Subject
Physics and Astronomy (miscellaneous),Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials