Optical dispersion analysis of template assisted 1D-ZnO nanorods for optoelectronic applications

Lefatshe, Kebadiretse; Dube, Phindani; Sebuso, Dineo P.; Madhuku, M.; Muiva, Cosmas M.

doi:10.1016/j.ceramint.2020.11.079

Cited by 15 publications

(5 citation statements)

References 47 publications

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“…The calculated size of the nanoparticle is summarized in Table 3. This finding coincides with other studies, where the addition of surfactant reduces the particle size (Lefatshe et al, 2021). Similar sized nanoparticles were obtained with protein (Kadam et al, 2019) and aqueous neem extract (Handago et al, 2019) capping.…”

Section: Resultssupporting

confidence: 93%

Preparation and characterization of zinc oxide nanoparticle, its migration, and toxicity evaluation

Parida

Malik

2022

Food Processing Preservation

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ZnO nanoparticles (ZnO‐NPs) are nanoscale representatives of ZnO, which is an approved food additive. ZnO‐NPs are used as fillers for food packaging, however, the migration of ZnO‐NPs from film to food is a real concern. The current study was oriented toward the migration of ZnO‐NPs from packaging material into food. ZnO‐NPs were synthesized in the lab with or without capping material and characterized using SEM and TEM, FTIR, and XRD to study morphology, functional group, and size of the nanoparticle, respectively. Rod‐shaped and flake‐shaped ZnO‐NPs were formed depending upon precursor. Bio‐nanocomposite films were prepared by incorporating these ZnO‐NPs into the gelatin matrix. The migration study was conducted using AAS considering variations in time, temperature, and composition. It was found that migration level increased with increasing concentration of ZnO‐NPs, temperature, and time. Concentration had the highest significance as compared to the other two parameters. Toxicity was also evaluated and it was found to be safe for human consumption. Novelty impact statement Quantification of migrated nanoparticles was done, with the variation in time, and temperature of storage along with the concentration of nanoparticles. A migration study was conducted from bio‐nanocomposite packaging film to the food instead of food simulants/buffer solutions. Toxicity evaluation of migrated nanoparticles was investigated.

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Section: Resultssupporting

confidence: 93%

Preparation and characterization of zinc oxide nanoparticle, its migration, and toxicity evaluation

Parida

Malik

2022

Food Processing Preservation

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“…01-080-0074). The XRD pattern of ZOF showed peaks corresponding to the characteristic crystallographic planes of ZnO, indicating the presence of well-defined crystalline structures within the foam with an additional broad hump with a peak around 20°. , The micro-Raman spectra of the ZOF were analyzed to explore its molecular vibrational modes, as shown in Figure S3. The Raman peaks located at 330, 379, and 436 cm –1 confirm the formation of ZnO.…”

Section: Resultsmentioning

confidence: 99%

Multifunctional Potential of Dandelion-like Structured Foam for Self-Cleaning, Oil/Water Separation, and Wearable Sensing

Ghadei,

Sankaran,

Sakthivel

2024

ACS Appl. Nano Mater.

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Integrating 1D nanomaterials into 3D arrays or hierarchical structures is crucial to unlocking their complete potential in functional applications. This work highlights the significant influence of pH variations on the morphological evolution of three-dimensional zinc oxide foams (ZOFs) at relatively low temperatures, leading to the formation of diverse structures with varying aspect ratios and dimensions. Our findings underscore the role of alkaline conditions in fostering the evolution of dandelion-like 1D nanostructures, attributed to the intricate interplays of reaction kinetics and Ostwald ripening processes. Furthermore, the ZOF demonstrates potential applications in self-cleaning, oil/water separation, and human motion sensing. The ZOF is optimized to exhibit superhydrophobicity (water contact angle = 153 ± 2°) showcasing self-cleaning ability and enhanced oil−water separation performance following surface functionalization. The ZOF exhibits exceptional oil adsorption capacity (10−55 g/g) and superior stability, making it suitable for oil−water separation. Furthermore, our investigations showcase the biocompatibility and practical applicability in oil−water separation, both on surface and underwater, highlighting its efficacy in environmental remediation scenarios. Transitioning to wearable sensing, ZOF exhibits outstanding mechanical (compression strength increases by more than 130%) and piezoresistive characteristics (gauge factor = 1.036), precisely capturing a broad spectrum of human movements and tactile stimuli with rapid response times (∼60 ms). Furthermore, ZOF exhibits stability over 10,000 continuous tapping cycles, indicating the material's ability to maintain its piezoresistive properties over extended use. Overall, the multifaceted functionalities and versatility of the ZOF make it a promising material for environmental remediation, sensor technology, and human−machine interfaces.

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“…Techniques such as carbon nanotube-assisted template-mediated growth, solutionliquid-solid growth, solvothermal process, and solution-based colloidal NRs growth have been investigated to produce NRs with different sizes, shapes, and qualities. [183][184][185][186] In particular, methods for producing metal halide perovskite NRs include high-temperature (hot-injection and solvothermal), lowtemperature (ligand-assisted reprecipitation and spin-coating), reshaping (top-down and bottom-up), solid-state synthesis, and template-mediated synthesis. The hot-injection method is a popular way to synthesize colloidal NRs, including CdS and CdTe based devices and others, allowing size and shape adjustments for optimized properties in various applications.…”

Section: Nrsmentioning

confidence: 99%

Recent Advances in Low‐Dimensional Nanomaterials for Photodetectors

Kim

Lee

et al. 2023

Small Methods

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New emerging low‐dimensional such as 0D, 1D, and 2D nanomaterials have attracted tremendous research interests in various fields of state‐of‐the‐art electronics, optoelectronics, and photonic applications due to their unique structural features and associated electronic, mechanical, and optical properties as well as high‐throughput fabrication for large‐area and low‐cost production and integration. Particularly, photodetectors which transform light to electrical signals are one of the key components in modern optical communication and developed imaging technologies for whole application spectrum in the daily lives, including X‐rays and ultraviolet biomedical imaging, visible light camera, and infrared night vision and spectroscopy. Today, diverse photodetector technologies are growing in terms of functionality and performance beyond the conventional silicon semiconductor, and low‐dimensional nanomaterials have been demonstrated as promising potential platforms. In this review, the current states of progress on the development of these nanomaterials and their applications in the field of photodetectors are summarized. From the elemental combination for material design and lattice structure to the essential investigations of hybrid device architectures, various devices and recent developments including wearable photodetectors and neuromorphic applications are fully introduced. Finally, the future perspectives and challenges of the low‐dimensional nanomaterials based photodetectors are also discussed.

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Optical dispersion analysis of template assisted 1D-ZnO nanorods for optoelectronic applications

Cited by 15 publications

References 47 publications

Preparation and characterization of zinc oxide nanoparticle, its migration, and toxicity evaluation

Preparation and characterization of zinc oxide nanoparticle, its migration, and toxicity evaluation

Multifunctional Potential of Dandelion-like Structured Foam for Self-Cleaning, Oil/Water Separation, and Wearable Sensing

Recent Advances in Low‐Dimensional Nanomaterials for Photodetectors

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