The Third-Order Nonlinear Optical Properties of Sb<sub>2</sub>S<sub>3</sub>/RGO Nanocomposites
Antimony sulfide/reduced graphene oxide (Sb<sub>2</sub>S<sub>3</sub>/RGO) nanocomposites were synthesized via a facile, one-step solvothermal method. XRD, SEM, FTIR, and Raman spectroscopy were used to characterize the uniform distribution of Sb<sub>2</sub>S<su...
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| Format: | Article |
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MDPI AG
2022-03-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/9/4/213 |
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| author | Liushuang Li Ye Yuan Jiawen Wu Baohua Zhu Yuzong Gu |
| author_facet | Liushuang Li Ye Yuan Jiawen Wu Baohua Zhu Yuzong Gu |
| author_sort | Liushuang Li |
| collection | DOAJ |
| description | Antimony sulfide/reduced graphene oxide (Sb<sub>2</sub>S<sub>3</sub>/RGO) nanocomposites were synthesized via a facile, one-step solvothermal method. XRD, SEM, FTIR, and Raman spectroscopy were used to characterize the uniform distribution of Sb<sub>2</sub>S<sub>3</sub> nanoparticles on the surface of graphene through partial chemical bonds. The third-order nonlinear optical (NLO) properties of Sb<sub>2</sub>S<sub>3</sub>, RGO, and Sb<sub>2</sub>S<sub>3</sub>/RGO samples were investigated by using the Z-scan technique under Nd:YAG picosecond pulsed laser at 532 nm. The results showed that pure Sb<sub>2</sub>S<sub>3</sub> particles exhibited two-photon absorption (TPA), while the Sb<sub>2</sub>S<sub>3</sub>/RGO composites switched to variable saturated absorption (SA) properties due to the addition of different concentrations of graphene. Moreover, the third-order nonlinear susceptibilities of the composites were also tunable with the concentration of the graphene. The third-order nonlinear susceptibility of the Sb<sub>2</sub>S<sub>3</sub>/RGO sample can achieve 8.63 × 10<sup>−12</sup> esu. The mechanism for these properties can be attributed to the change of the band gap and the formation of chemical bonds supplying channels for photo-induced charge transfer between Sb<sub>2</sub>S<sub>3</sub> nanoparticles and the graphene. These tunable NLO properties of Sb<sub>2</sub>S<sub>3</sub>/RGO composites can be applicable to photonic devices such as Q-switches, mode-locking devices, and optical switches. |
| first_indexed | 2024-03-09T13:07:30Z |
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| last_indexed | 2024-03-09T13:07:30Z |
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| series | Photonics |
| spelling | doaj.art-45574d20118146f4be93a5977257c85c2023-11-30T21:45:33ZengMDPI AGPhotonics2304-67322022-03-019421310.3390/photonics9040213The Third-Order Nonlinear Optical Properties of Sb<sub>2</sub>S<sub>3</sub>/RGO NanocompositesLiushuang Li0Ye Yuan1Jiawen Wu2Baohua Zhu3Yuzong Gu4Physics Research Center for Two-Dimensional Optoelectronic Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, ChinaPhysics Research Center for Two-Dimensional Optoelectronic Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, ChinaPhysics Research Center for Two-Dimensional Optoelectronic Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, ChinaPhysics Research Center for Two-Dimensional Optoelectronic Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, ChinaPhysics Research Center for Two-Dimensional Optoelectronic Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, ChinaAntimony sulfide/reduced graphene oxide (Sb<sub>2</sub>S<sub>3</sub>/RGO) nanocomposites were synthesized via a facile, one-step solvothermal method. XRD, SEM, FTIR, and Raman spectroscopy were used to characterize the uniform distribution of Sb<sub>2</sub>S<sub>3</sub> nanoparticles on the surface of graphene through partial chemical bonds. The third-order nonlinear optical (NLO) properties of Sb<sub>2</sub>S<sub>3</sub>, RGO, and Sb<sub>2</sub>S<sub>3</sub>/RGO samples were investigated by using the Z-scan technique under Nd:YAG picosecond pulsed laser at 532 nm. The results showed that pure Sb<sub>2</sub>S<sub>3</sub> particles exhibited two-photon absorption (TPA), while the Sb<sub>2</sub>S<sub>3</sub>/RGO composites switched to variable saturated absorption (SA) properties due to the addition of different concentrations of graphene. Moreover, the third-order nonlinear susceptibilities of the composites were also tunable with the concentration of the graphene. The third-order nonlinear susceptibility of the Sb<sub>2</sub>S<sub>3</sub>/RGO sample can achieve 8.63 × 10<sup>−12</sup> esu. The mechanism for these properties can be attributed to the change of the band gap and the formation of chemical bonds supplying channels for photo-induced charge transfer between Sb<sub>2</sub>S<sub>3</sub> nanoparticles and the graphene. These tunable NLO properties of Sb<sub>2</sub>S<sub>3</sub>/RGO composites can be applicable to photonic devices such as Q-switches, mode-locking devices, and optical switches.https://www.mdpi.com/2304-6732/9/4/213Sb<sub>2</sub>S<sub>3</sub>/RGO compositegraphenethird-order nonlinear optical propertysaturable absorptionsusceptibility |
| spellingShingle | Liushuang Li Ye Yuan Jiawen Wu Baohua Zhu Yuzong Gu The Third-Order Nonlinear Optical Properties of Sb<sub>2</sub>S<sub>3</sub>/RGO Nanocomposites Photonics Sb<sub>2</sub>S<sub>3</sub>/RGO composite graphene third-order nonlinear optical property saturable absorption susceptibility |
| title | The Third-Order Nonlinear Optical Properties of Sb<sub>2</sub>S<sub>3</sub>/RGO Nanocomposites |
| title_full | The Third-Order Nonlinear Optical Properties of Sb<sub>2</sub>S<sub>3</sub>/RGO Nanocomposites |
| title_fullStr | The Third-Order Nonlinear Optical Properties of Sb<sub>2</sub>S<sub>3</sub>/RGO Nanocomposites |
| title_full_unstemmed | The Third-Order Nonlinear Optical Properties of Sb<sub>2</sub>S<sub>3</sub>/RGO Nanocomposites |
| title_short | The Third-Order Nonlinear Optical Properties of Sb<sub>2</sub>S<sub>3</sub>/RGO Nanocomposites |
| title_sort | third order nonlinear optical properties of sb sub 2 sub s sub 3 sub rgo nanocomposites |
| topic | Sb<sub>2</sub>S<sub>3</sub>/RGO composite graphene third-order nonlinear optical property saturable absorption susceptibility |
| url | https://www.mdpi.com/2304-6732/9/4/213 |
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