An ultraviolet photodetector based on In2O3/β-Ga2O3 heterojunction

Zhang, Yongfeng; Liu, Xinyan; Bi, Zhengyu; Xu, Ruiliang; Chen, Yu; Zhou, Jingran; Ruan, Shengping

doi:10.1016/j.mssp.2024.108648

Materials Science in Semiconductor Processing

2024

DOI: 10.1016/j.mssp.2024.108648

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An ultraviolet photodetector based on In2O3/β-Ga2O3 heterojunction

Yongfeng Zhang,

Xinyan Liu,

Zhengyu Bi

et al.

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Hierarchical WS2-WO3 Nanohybrids with Flower-like p-n Heterostructures for Trimethylamine Detection

Meng,

Ran,

Zhang

et al. 2024

Nanomaterials

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The detection of trimethylamine (TMA) is critically important due to its toxic and flammable nature, which poses significant risks to human health and the environment. However, achieving high response, rapid kinetics, selectivity, and low operating temperatures in TMA sensing remains challenging. In this study, WS2/WO3 nanohybrids with flower-like hierarchical structures were synthesized via an in situ sulfurization process, utilizing varying amounts of thioacetamide to control the sulfurization state of WO3. These novel hierarchical WS2/WO3 nanohybrids exhibit remarkable selectivity towards TMA, as well as rapid response and recovery characteristics. Specially, the optimal WS2/WO3 sensor, composed of 5% WS2/WO3 nanohybrids, demonstrates exceptional TMA sensing performance, including a high response (19.45 at 10 ppm), good repeatability, reliable long-term stability, and a low theoretical detection limit (15.96 ppb). The superior sensing capabilities of the WS2/WO3 nanohybrids are attributed to the formation of p-n heterojunctions at the interface, the unique hierarchical structures, and the catalytic activity of WS2. Overall, this work provides a straightforward and versatile approach for synthesizing multifunctional nanomaterials by combining metal oxide micro-flowers with transition metal dichalcogenide nanoflakes for applications in monitoring TMA in complex environments.

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Hierarchical WS2-WO3 Nanohybrids with Flower-like p-n Heterostructures for Trimethylamine Detection

Meng,

Ran,

Zhang

et al. 2024

Nanomaterials

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show abstract

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An ultraviolet photodetector based on In2O3/β-Ga2O3 heterojunction

Cited by 1 publication

References 53 publications

Hierarchical WS2-WO3 Nanohybrids with Flower-like p-n Heterostructures for Trimethylamine Detection

Hierarchical WS2-WO3 Nanohybrids with Flower-like p-n Heterostructures for Trimethylamine Detection

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