Organic Small Molecule Covalently Functionalized Molybdenum Disulfide Hybrid Material for Optical Limiting
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- Fan Gan
- Key Laboratory for Advanced Materials, Institute of Applied Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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- Ningning Dong
- Laboratory of Micro-Nano Optoelectronic Materials and Devices, Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, CAS, Shanghai 201800, P. R. China
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- Zhiwei Liu
- Key Laboratory for Advanced Materials, Institute of Applied Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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- Huimei Jia
- Key Laboratory for Advanced Materials, Institute of Applied Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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- Jun Wang
- Laboratory of Micro-Nano Optoelectronic Materials and Devices, Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, CAS, Shanghai 201800, P. R. China
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- Yu Chen
- Key Laboratory for Advanced Materials, Institute of Applied Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
抄録
<jats:title>Abstract</jats:title> <jats:p>Molybdenum disulfide (MoS2) nanosheets are insoluble in any organic solvent, which makes them more difficult to fabricate into thin film devices for nanoelectronics and nonlinear optics. To solve practical solution-processability problems of the MoS2 nanosheets, it would be ideal and feasible to design and synthesize MoS2-based solution-processed organic/polymeric materials. In this work, new organic small molecule covalently modified MoS2 nanosheets (MoS2-CHT) were synthesized through a simple reaction between MoS2 and 6-(9H-carbazol-9-yl)hexane-1-thiol (CHT). Both a DMF solution of MoS2-CHT and a MoS2-CHT/PMMA film exhibited excellent nonlinear optical (NLO) and optical limiting (OL) responses when compared to the MoS2 and MoS2/CHT mixture. As a result, among these materials, the annealed MoS2-CHT/PMMA film showed the largest nonlinear absorption coefficients (βeff) and highest imaginary third-order susceptibilities (Imχ(3)) (997.75 cm/GW and 4.25 × 10−10 esu at 532 nm; 372.62 cm/GW and 3.19 × 10−10 esu at 1064 nm). The enhanced NLO/OL performance of the annealed film could be due to the structural transition of MoS2 in MoS2-CHT from the 1T phase to the 2H phase during the annealing and the possible thermal-induced electron transfer effect between MoS2 and CHT moieties in MoS2-CHT.</jats:p>
収録刊行物
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- Bulletin of the Chemical Society of Japan
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Bulletin of the Chemical Society of Japan 93 (1), 26-31, 2019-10-26
Oxford University Press (OUP)
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詳細情報 詳細情報について
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- CRID
- 1360565169050569216
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- NII論文ID
- 130007784861
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- ISSN
- 13480634
- 00092673
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