Enhanced Gas Sensing Performance of Heterostructure Sensors Based on H-NCD, MoS₂, and Functionalized Graphene Oxide for Ethanol, NH₃, and NO₂ Detection DOI Creative Commons
Darya Nemova, Akula Prakash,

Angothu Saida

и другие.

E3S Web of Conferences, Год журнала: 2024, Номер 588, С. 02004 - 02004

Опубликована: Янв. 1, 2024

This study investigates the gas-sensing capabilities of heterostructure sensors based on hydrogen-terminated nanocrystalline diamond (H-NCD), molybdenum disulfide (MoS₂), and functionalized graphene oxide (SH-GO, GO) for detecting ethanol, ammonia (NH₃), nitrogen dioxide (NO₂) gases at 100 ppm concentrations. Sensors were tested two distinct temperatures: 125°C room temperature (22°C). Among sensors, SH-GO/H-NCD exhibited highest sensitivity to with a response 634% 22°C 554% 125°C. The Au NPs/H-NCD sensor showed second-best ethanol 587% For NH₃, demonstrated best value 76%, while temperature, it 41%. NO₂ sensing negative responses, exhibiting least degradation -47% -19% 22°C. results highlight those combining materials into heterostructures significantly enhances gas detection performance, even showing comparable responses commercial sensors.

Язык: Английский

Recent Advances in Metal Oxide Semiconductor Heterojunctions for the Detection of Volatile Organic Compounds DOI Creative Commons
Shengming Zhang, Heng Zhang,

Haiyu Yao

и другие.

Chemosensors, Год журнала: 2024, Номер 12(12), С. 244 - 244

Опубликована: Ноя. 22, 2024

The efficient detection of volatile organic compounds (VOCs) is critically important in the domains environmental protection, healthcare, and industrial safety. development metal oxide semiconductor (MOS) heterojunction gas-sensing materials considered one most effective strategies to enhance sensor performance. This review summarizes discusses types heterojunctions their working principles, enhancement strategies, preparation methodologies, applications acetone ethanol detection. To address constraints pertaining low sensitivity, sluggish response/recovery times, elevated operating temperatures that are inherent VOC sensors, several improvement methods proposed, including doping with metals like Ag Pd, incorporating additives such as MXene polyoxometalates, optimizing morphologies through a fine design, self-doping via oxygen vacancies. Furthermore, this work provides insights into challenges faced by MOSs heterojunction-based gas sensors outlines future research directions field. will contribute foundational theories overcome existing bottlenecks MOS technology while promoting its large-scale application disease screening or agricultural food quality assessments.

Язык: Английский

Процитировано

4
One-pot synthesis of hollow SnO2/Zn2SnO4 microcubes assembled by nanosheets for enhanced formaldehyde sensing performance DOI
Haibo Ren, Wan Qi Jie, Hui Pan

и другие.

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
A review on stannate perovskites-based heterojunctions and their applications in the development of sustainable technologies and materials DOI

Pramila Raina,

Tabassum Nike,

Deepika Kaushal

и другие.

Materials Science in Semiconductor Processing, Год журнала: 2024, Номер 188, С. 109224 - 109224

Опубликована: Дек. 21, 2024

Язык: Английский

Процитировано

2
Enhanced Gas Sensing Performance of Heterostructure Sensors Based on H-NCD, MoS₂, and Functionalized Graphene Oxide for Ethanol, NH₃, and NO₂ Detection DOI Creative Commons
Darya Nemova, Akula Prakash,

Angothu Saida

и другие.

E3S Web of Conferences, Год журнала: 2024, Номер 588, С. 02004 - 02004

Опубликована: Янв. 1, 2024

This study investigates the gas-sensing capabilities of heterostructure sensors based on hydrogen-terminated nanocrystalline diamond (H-NCD), molybdenum disulfide (MoS₂), and functionalized graphene oxide (SH-GO, GO) for detecting ethanol, ammonia (NH₃), nitrogen dioxide (NO₂) gases at 100 ppm concentrations. Sensors were tested two distinct temperatures: 125°C room temperature (22°C). Among sensors, SH-GO/H-NCD exhibited highest sensitivity to with a response 634% 22°C 554% 125°C. The Au NPs/H-NCD sensor showed second-best ethanol 587% For NH₃, demonstrated best value 76%, while temperature, it 41%. NO₂ sensing negative responses, exhibiting least degradation -47% -19% 22°C. results highlight those combining materials into heterostructures significantly enhances gas detection performance, even showing comparable responses commercial sensors.

Язык: Английский

Процитировано

0