Effects of sintering temperature on thermoelectric figure of merit of trace Al<sub>2</sub>O<sub>3</sub> doped n-type ZnO nanocomposites

Wang, Xi Zu; Zheng, Yun; Suwardi, Ady; Wu, Jing; Teo, Siew Lang; Zhu, Qiang; Wu, Gang; Xu, Jianwei

doi:10.1039/d2qm00425a

Cited by 3 publications

(2 citation statements)

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“…[58] Carbon quantum dot (CQD)decorated ZnO (C/ZnO) was selected as the functional nanoparticles due to its antibacterial performance, excellent photocatalytic performance, and ability to generate ROS upon infrared or visible light exposure. [59,60] On top of that, CQDs and polydopamine (PDA) have excellent photothermal performance under irradiation with NIR light, which also contribute to killing bacteria. The resultant DFT-C/ZnO hydrogel possessed remarkable photothermal and photodynamic antibacterial activity by rapidly generating ROS and hyperthermia under coirradiation with 808 nm NIR light and 660 nm red light.…”

Section: Photoresponsive Wound Dressingmentioning

confidence: 99%

“…Xiang and coworkers designed an injectable dual‐light triggered ROS hydrogel consisting of dopamine (DA) and folic acid (FA) crosslinked by transition metal ions (TMIs), denoted as DFT‐hydrogel [58] . Carbon quantum dot (CQD)‐decorated ZnO (C/ZnO) was selected as the functional nanoparticles due to its antibacterial performance, excellent photocatalytic performance, and ability to generate ROS upon infrared or visible light exposure [59,60] . On top of that, CQDs and polydopamine (PDA) have excellent photothermal performance under irradiation with NIR light, which also contribute to killing bacteria.…”

Section: Stimuli‐responsive Hydrogel Dressings For Wound Healingmentioning

confidence: 99%

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Responsive hydrogel dressings for intelligent wound management

Wang

Yeo

et al. 2023

BMEMat

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Due to global aging problems, the rising number of patients suffering from chronic or hard‐to‐heal acute wounds imposes a significant burden on healthcare systems. Wound healing is a complicated and dynamic physiological process with distinct molecular and cellular levels at each phase. Despite numerous strategies and advanced wound dressings being developed, successful wound management through smart dressing materials that can adapt to changing wound microenvironments and address the needs of wounds at different stages remains a big challenge. Over the last decade, hydrogel‐based dressings have emerged as one of the most potent biomaterials for wound treatment with favorable biological characteristics and a high potential for active intervention during the wound‐curing process. In the current contribution, we present the most recent progress in smart hydrogel dressings that can regulate the release of therapeutics in response to external stimuli (such as light) as well as endogenous changes in wound environments (e.g., temperature, pH, glucose, and reactive oxygen species) to facilitate wound healing. We also introduce the cutting‐edge technologies of intelligent “sense‐and‐treat” dressings through a combination of built‐in sensors or sensing molecules with responsive hydrogels, which enable real‐time monitoring of wound conditions and prompt on‐demand therapy.

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Section: Photoresponsive Wound Dressingmentioning

confidence: 99%

Section: Stimuli‐responsive Hydrogel Dressings For Wound Healingmentioning

confidence: 99%

Responsive hydrogel dressings for intelligent wound management

Wang

Yeo

et al. 2023

BMEMat

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Synergistic Combination of Sb₂Si₂Te₆ Additives for Enhanced Average ZT and Single‐Leg Device Efficiency of Bi_0.4Sb_1.6Te₃‐based Composites

Tan,

Dong,

Liu

et al. 2024

Advanced Science

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Thermoelectric materials are highly promising for waste heat harvesting. Although thermoelectric materials research has expanded over the years, bismuth telluride‐based alloys are still the best for near‐room‐temperature applications. In this work, a ≈38% enhancement of the average ZT (300−473 K) to 1.21 is achieved by mixing Bi0.4Sb1.6Te3 with an emerging thermoelectric material Sb2Si2Te6, which is significantly higher than that of most BiySb2−yTe3‐based composites. This enhancement is facilitated by the unique interface region between the Bi0.4Sb1.6Te3 matrix and Sb2Si2Te6‐based precipitates with an orderly atomic arrangement, which promotes the transport of charge carriers with minimal scattering, overcoming a common factor that is limiting ZT enhancement in such composites. At the same time, high‐density dislocations in the same region can effectively scatter the phonons, decoupling the electron‐phonon transport. This results in a ≈56% enhancement of the thermoelectric quality factor at 373 K, from 0.41 for the pristine sample to 0.64 for the composite sample. A single‐leg device is fabricated with a high efficiency of 5.4% at ΔT = 164 K further demonstrating the efficacy of the Sb2Si2Te6 compositing strategy and the importance of the precipitate‐matrix interface microstructure in improving the performance of materials for relatively low‐temperature applications.

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Porous ZnO with Enhanced Thermoelectric Properties

Chen

Zhou

Pan

et al. 2023

J. Electron. Mater.

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Effects of sintering temperature on thermoelectric figure of merit of trace Al₂O₃ doped n-type ZnO nanocomposites

Abstract: ZnO is a cost-effective and abundant oxide on the earth and has many emerging applications in the areas of photonics, electronics, optoelectronics and spintronics. However, its thermoelectric performance is not...

Cited by 3 publications

References 54 publications

Responsive hydrogel dressings for intelligent wound management

Responsive hydrogel dressings for intelligent wound management

Synergistic Combination of Sb₂Si₂Te₆ Additives for Enhanced Average ZT and Single‐Leg Device Efficiency of Bi_0.4Sb_1.6Te₃‐based Composites

Porous ZnO with Enhanced Thermoelectric Properties

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Effects of sintering temperature on thermoelectric figure of merit of trace Al2O3 doped n-type ZnO nanocomposites

Abstract: ZnO is a cost-effective and abundant oxide on the earth and has many emerging applications in the areas of photonics, electronics, optoelectronics and spintronics. However, its thermoelectric performance is not...

Cited by 3 publications

References 54 publications

Responsive hydrogel dressings for intelligent wound management

Responsive hydrogel dressings for intelligent wound management

Synergistic Combination of Sb2Si2Te6 Additives for Enhanced Average ZT and Single‐Leg Device Efficiency of Bi0.4Sb1.6Te3‐based Composites

Porous ZnO with Enhanced Thermoelectric Properties

Contact Info

Product

Resources

About

Effects of sintering temperature on thermoelectric figure of merit of trace Al₂O₃ doped n-type ZnO nanocomposites

Synergistic Combination of Sb₂Si₂Te₆ Additives for Enhanced Average ZT and Single‐Leg Device Efficiency of Bi_0.4Sb_1.6Te₃‐based Composites