Rajkumar, D Umamahesvari, H Nagaraju, P
Published in
Journal of Physics: Condensed Matter
The gas sensing characteristics of magnesium (Mg)-doped titanium dioxide (TiO2) films were investigated using a spray pyrolysis method. TiO2 Thin films with varying Mg doping concentrations (0, 2.5, and 5 weight percentages) were deposited and tested for their gas detection ability to organic compounds such as ethanol, butanol, toluene, xylene, and...
de Gruijl, David (author)
Much like wearable devices today, ingestible devices have emerged as a promising platform for continuous health monitoring, and potentially even intervention. Recent research has demonstrated the feasibility of ingestible devices with a retention mechanism, enabling them to remain in the stomach for weeks. Equipping these devices with sensors capab...
Hasaneen, M F Mohamed, W S Taya, Y A
Published in
Physica Scripta
In this work, we utilized the thermal vacuum evaporation technique to fabricate ZnS single-layer thin films, ZnS/Cu/ZnS (ZCZ), and ZnS/Ag/ZnS (ZAZ) multilayer thin films. The influence of the middle layer of metals like copper and silver on the physical properties of ZnS/metal/ZnS multilayers is investigated. The results of the X-ray investigation ...
yin;, limei
In the process of storage and cold chain logistics, apples are prone to physical bumps or microbial infection, which easily leads to spoilage in the micro-environment, resulting in widespread infection and serious post-harvest economic losses. Thus, development of methods for monitoring apple spoilage and providing early warning of spoilage has bec...
Zhang, Jiwei Pang, Jianhua Chen, Hui Wei, Guang Wei, Songrui Wang, Kuanyi Yan, Jin
Published in
Physica Scripta
In this paper, we construct a two-dimensional PbSe/Bi2Se3 van der Waals heterojunction to study the adsorption of Cl2 and SO2 by this heterojunction. Based on the help of Bader charge, charge density difference diagram, and electron localization function, we find the following conclusions. Among the six configurations, three meet the requirements f...
Khalafi, M Nikfarjam, A Hajghassem, H Bidmeshkipour, S
Published in
Physica Scripta
In this work, by using an electro-spinning process and a secondary electrostatic field on rectangular electrodes, a single-aligned nanofiber of silver nanoparticle (SNP)-TiO2 fabricated for NH3 gas sensing with UV irradiation at room temperature. XRD, FE-SEM and UV spectroscopy adopted for characterization of the single nanofiber. The response of S...
Wang, Zengyao Wu, Qingyun Shen, Lei
Published in
Journal of Physics: Condensed Matter
Various stable 2D phosphorus allotropes have been experimentally synthesized or theoretically predicted, such as puckered black α-, puckered blue β-, and buckled ɛ-phosphorene. Here, we present a systematic study of the magnetic properties of ɛ-phosphorene doped with 3d transition-metal (TM) atoms, as well as its gas-sensing capabilities, using fir...
Sun, Yuqiong Li, Jiean He, Daowei Wang, Xinran Shi, Yi Pan, Lijia
Published in
Luminescence : the journal of biological and chemical luminescence
Carbon dots (CDs), as an attractive zero-dimensional carbon nanomaterial with unique photoluminescent merits, have recently exhibited significant application potential in gas sensing as a result of their excellent optical/electronic characteristics, high chemical/thermal stability, and tunable surface states. CDs exhibit strong light absorption in ...
Wei, Guang Pang, Jianhua Zhang, Jiwei Chen, Hui Wang, Kuanyi Yan, Jin Wei, Songrui
Published in
Physica Scripta
Using first-principles theory, we investigated the stability and feasibility on Mn-doped SnTe monolayer and the interactions of Mn-doped SnTe monolayer (Mn-SnTe) for the adsorption of toxic gases H2S, SO2, NO, NO2 and Cl2. The results show that the Mn-SnTe monolayer has a weak interaction for H2S and strong adsorption energies of −1.840, −4.123, −2...
Liu, Xiaofan Zhao, Jian Wang, Yongguang Hu, Yan Xu, Linjie Yao, Longchao Zheng, Chenghang Yang, Jian Gao, Xiang
Published in
Nanotechnology
Rapid detection of low concentration toluene is highly desirable in environment monitoring, industrial processes, medical diagnosis, etc. In this study, we prepared Pt-loaded SnO2 monodispersed nanoparticles through hydrothermal method and assembled a sensor based on micro-electro-mechanical system (MEMS) to detect toluene. Compared with the pure S...
