A comparative computational and experimental study of Al–ZrO2 thin films for optoelectronic applications

Zeeshan, Talat; Qureshi, Muhammad Tauseef; Kayani, Zohra Nazir; Arshad, Amara; Ullah, Farman; Hameed, Reda S. Abdel; Ragab, H.M.; Alam, Noor; Rehman, Wajid; Saleem, Murtaza

doi:10.1016/j.ssc.2022.115006

Cited by 14 publications

(1 citation statement)

References 46 publications

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“…[19] The introduction of Al permits bandgap engineering increment the absorption coefficient in t-ZrO 2 . [20] Lanthanide ions [21][22][23] have been shown to stabilize the ZrO 2 phase. Furthermore, lanthanide doping permits tuning of the optical emission.…”

Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Zn‐Doped ZrO₂ Architectures

Winczewski,

Arriaga‐Dávila,

Maestre

et al. 2024

Adv Eng Mater

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Tailoring the properties of microfabricated ceramics through doping can unlock new avenues for the additive manufacturing (AM) of advanced three‐dimensional (3D) architectures. The first step to achieving optical functionality is to control material morphology, crystallinity, and defects associated with the composition of the produced AM architecture and dopants. For this purpose, AM of zinc‐doped zirconia (ZrO2:Zn) 3D microarchitectures are proposed using two‐photon lithography and tailor‐made resin. It is found that Zn doping modulates ZrO2:Zn architecture crystallinity and optical properties. The modification of optical properties through Zn doping is confirmed by micro‐photoluminescence, where higher energy photon emission is observed due to the promotion of oxygen vacancies and surface defects. It is also shown that Zn 2.5% and 5 wt.% stabilizes the monoclinic ZrO2 at a lower temperature than in the case of undoped ZrO2. Furthermore, we have evidence that Zn tends to form ZnO wurtzite, which is later sublimated. Our findings provide a promising route to understand the role of defects ZrO2:Zn optically upon annealing.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Zn‐Doped ZrO₂ Architectures

Winczewski,

Arriaga‐Dávila,

Maestre

et al. 2024

Adv Eng Mater

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Luminescent nanocomposite based on Brassica juncea-derived intentionally Cu-doped carbon quantum dots embedded in bioplastic for UV-tube down-conversion applications

Sharma,

Kansay,

Bhatia

et al. 2023

Appl. Phys. A

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High surface area g-C3N4 nanosheets as superior solar-light photocatalyst for the degradation of parabens

Stefa,

Zografaki,

Dimitropoulos

et al. 2023

Appl. Phys. A

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The rational design and development of highly-active photocatalytic materials for the degradation of dangerous chemical compounds, such as parabens, is one of the main research pillars in the field of photocatalysis. Graphitic carbon nitride (g-C3N4) is a 2D non-metal material and is considered one of the most promising photocatalysts, because of its peculiar physicochemical properties. In this work, porous g-C3N4 nanosheets (CNNs) were successfully prepared via thermal exfoliation of bulk g-C3N4 (CNB). A thorough physicochemical characterization analysis before and after the exfoliation process was performed, revealing the improved textural characteristics (surface area of 212 m2/g), chemical stability, and optical properties (wide band gap of 2.91 eV) of CNNs compared to the CNB. Then, both CNB and CNNs were comparatively assessed as photocatalysts for the degradation of methyl-, ethyl- and propylparaben (MP, EP, and PP), as well as of their mixture. CNNs with high surface area display superior photocatalytic performance under solar irradiation, offering > 95% degradation efficiency to all parabens, in contrast to the much inferior performance of CNB (< 30%). Several experimental parameters, involving catalyst concentration, initial concentration of parabens, and irradiation type were thoroughly investigated for the degradation of MP over CNNs. Moreover, various scavengers were employed to discriminate the role of different reactive species, revealing that superoxide anion radicals (·O2–) play a pivotal role in the degradation process, in contrast to hydroxyl radicals (·OH). The present results pave the way towards the facile synthesis of high surface area CNNs with improved textural and electronic characteristics, which can be applied in various environmental applications.

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A comparative computational and experimental study of Al–ZrO2 thin films for optoelectronic applications

Cited by 14 publications

References 46 publications

Additive Manufacturing of Zn‐Doped ZrO₂ Architectures

Additive Manufacturing of Zn‐Doped ZrO₂ Architectures

Luminescent nanocomposite based on Brassica juncea-derived intentionally Cu-doped carbon quantum dots embedded in bioplastic for UV-tube down-conversion applications

High surface area g-C3N4 nanosheets as superior solar-light photocatalyst for the degradation of parabens

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A comparative computational and experimental study of Al–ZrO2 thin films for optoelectronic applications

Cited by 14 publications

References 46 publications

Additive Manufacturing of Zn‐Doped ZrO2 Architectures

Additive Manufacturing of Zn‐Doped ZrO2 Architectures

Luminescent nanocomposite based on Brassica juncea-derived intentionally Cu-doped carbon quantum dots embedded in bioplastic for UV-tube down-conversion applications

High surface area g-C3N4 nanosheets as superior solar-light photocatalyst for the degradation of parabens

Contact Info

Product

Resources

About

Additive Manufacturing of Zn‐Doped ZrO₂ Architectures

Additive Manufacturing of Zn‐Doped ZrO₂ Architectures