Microstructure evolution and performance degradation of sol-gel silica films induced by helium ion irradiation

Li, Bo; Guo, Jianlei; Yuan, Zhigang; Xiang, Xia; Jiang, Xiaolong; Nie, Junwei; Zhong, Bo; Yuan, Xiaodong; Zu, Xiaotao

doi:10.1016/j.optmat.2023.114689

Cited by 20 publications

(2 citation statements)

References 53 publications

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“…The rapid development of industrialization and urbanization since the 20th century results in global water pollution which attracts widespread attention around the world [1][2][3]. Photocatalytic route has been extensively studied for the effective degradation of organic pollution in water, which is attributed to its highly active free radicals generated by the photoexcited electrons and holes [4][5][6]. However, the poor utilization of incident light and inefficient separation of photoexcited electron-hole pairs greatly limits the photocatalytic degradation performance [7,8].…”

Section: Introductionmentioning

confidence: 99%

Efficient degradation of organics by ultrasonic piezoelectric effect on CuO-BTO/AFC composite

Feng,

Zhang,

Deng

et al. 2024

Nanotechnology

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The recombination of photoexcited electron-hole pairs greatly limits the degradation performance of photocatalysts. Ultrasonic cavitation and internal electric field induced by the piezoelectric effect are helpful for the separation of electron-hole pairs and degradation efficiency. The activated foam carbon (AFC) owing to its high surface area is often used as the substrate to grow catalysts to provide more reactive active sites. In this work, CuO@BaTiO3 (CuO@BTO) heterostructure is prepared by hydrothermal method on the surface of AFC to investigate the ultrasonic piezoelectric catalysis effect. X-ray diffraction (XRD), Raman spectroscopy, energy dispersive X-ray spectroscopy (EDS) and scanning electron microscopy (SEM) were used to analyze the structure and morphology of CuO-BTO/AFC composite. It is found that the CuO-BTO/AFC composite exhibits excellent piezo-catalytic performance for the degradation of organics promoted by ultrasonic vibration. The CuO-BTO/AFC composite can decompose methyl orange and methylene blue with degradation efficiency as high as 93.9% and 97.6% within 25 minutes, respectively. The mechanism of piezoelectricity enhanced ultrasound supported catalysis effect of system CuO-BTO/AFC is discussed. The formed heterojunction structure between BTO and CuO promotes the separation of positive and negative charges caused by the piezoelectric effect.

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Section: Introductionmentioning

confidence: 99%

Efficient degradation of organics by ultrasonic piezoelectric effect on CuO-BTO/AFC composite

Feng,

Zhang,

Deng

et al. 2024

Nanotechnology

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“…However, the instability of lead-based perovskites results in a potential risk of lead leakage and limits their practical applications. In order to develop environmentally friendly photoelectric devices, lead-free perovskites have been developed and integrated onto Si wafers, which attract lots of attention in the preparation of heterojunctions, performance research, and device applications. ,− …”

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confidence: 99%

Integration of One-Dimensional (1D) Lead-Free Perovskite Microbelts onto Silicon for Ultraviolet–Visible–Near-Infrared (UV-vis-NIR) Heterojunction Photodetectors

Sun,

Liu,

Wang

et al. 2024

J. Phys. Chem. Lett.

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Lead-free perovskites are considered to be candidates for next-generation photodetectors, because of their excellent charge carrier transport properties and low toxicity. However, their application in integrated circuits is hindered by their inadequate performance and size restrictions. To aim at the development of lead-free perovskiteintegrated optoelectronic devices, a CsAg 2 I 3 /silicon (CAI/Si) heterojunction is presented in this work by using a spatial confinement growth method, where the in-plane growth of CAI microbelts with high-quality single-crystal characteristics is primarily dependent on the concentration of surrounding precursor solution. The fabricated photodetectors based on the CAI/Si heterojunctions exhibit a broad-spectrum detection capability in the ultraviolet− visible−near-infrared (UV-vis-NIR) range. In addition, the photodetectors show good photoelectric detection performance, including a maximum responsivity of 48.5 mA/W and detectivity of 1.13 × 10 11 Jones, respectively. Besides, the photodetectors have a rapid response of 6.5/224 μs and good air stability for over 2 months. This work contributes a new idea to design next-generation optoelectronic devices with high integration density.

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Effect of Carbides on Interfacial Reactions Between Superalloy DZ40M and Ceramic Mold in Directional Solidification

Chen,

Qi,

et al. 2024

JOM

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Microstructure evolution and performance degradation of sol-gel silica films induced by helium ion irradiation

Cited by 20 publications

References 53 publications

Efficient degradation of organics by ultrasonic piezoelectric effect on CuO-BTO/AFC composite

Efficient degradation of organics by ultrasonic piezoelectric effect on CuO-BTO/AFC composite

Integration of One-Dimensional (1D) Lead-Free Perovskite Microbelts onto Silicon for Ultraviolet–Visible–Near-Infrared (UV-vis-NIR) Heterojunction Photodetectors

Effect of Carbides on Interfacial Reactions Between Superalloy DZ40M and Ceramic Mold in Directional Solidification

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