Article
Physics, Multidisciplinary
Payal Patial, Nupur Aggarwal, Manish Deshwal, Haewon Byeon, Hitendra Kumar Lautre, Naveen Kumar
Summary: Transparent and crack-free ZnO thin films were prepared on a silicon substrate using spin coating technique, and the effect of variable thickness on their properties was analyzed. The crystallographic structure of the films was characterized using X-ray diffraction, and it was found that a thickness of 155 nm resulted in the best gas sensing performance.
Article
Materials Science, Multidisciplinary
Vernica Verma, N. K. Pandey, Ajeet Singh, Peramjeet Singh, Priya Gupta, B. C. Yadav
Summary: This study reports the fabrication of a novel biphasic LPG sensor that operates at room temperature. The Cu6Sn5:SnO2 nanocomposite thin films were synthesized through a hydrothermal route, and their microstructural details were determined using XRD. The films exhibited enhanced sensitivity and quick response and recovery time for LPG sensing at room temperature, with the Cu6Sn5 dominant phase nanocomposite showing improved performance. The improved performance may be attributed to the formation of a crystalline structure.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Haoyuan Cai, Shihan Shan, Xiaoping Wang
Summary: The proposed SPR biosensor structure, consisting of alternate layers of silver (Ag) and TiO2 thin film, exhibits high sensitivity and superior performance. Optimized using genetic algorithm (GA) and discussed in detail using FDTD method, the sensor has extremely high angular sensitivity in a specific refractive index environment. This structure shows promising applications in chemical detection, clinical diagnostics, and biological examination.
Review
Chemistry, Analytical
Mohammad Nur-E-Alam, Devendra Kumar Maurya, Boon Kar Yap, Armin Rajabi, Camellia Doroody, Hassan Bin Mohamed, Mayeen Uddin Khandaker, Mohammad Aminul Islam, Sieh Kiong Tiong
Summary: Metal oxide thin films grown using PVD have attracted significant attention for pH sensing applications. The precise control over film properties offered by PVD techniques, along with the exploration of various thin film materials, have led to the development of high-performing pH sensors.
Article
Chemistry, Multidisciplinary
R. C. Ramola, Sandhya Negi, Mukesh Rawat, R. C. Singh, Fouran Singh
Summary: Zinc oxide (ZnO) is a versatile material with high thermal conductivity, electron mobility, wide band gap, and exciton binding energy, making it suitable for various device applications. Among these applications, gallium-doped ZnO thin films annealed at 700 degrees Celsius show the highest sensitivity and shortest response and recovery time for ethanol and acetone gases, demonstrating the potential for gas sensing applications.
Article
Chemistry, Inorganic & Nuclear
T. Kedara Shivasharma, Lakshmana Kumar Bommineedi, Babasaheb R. Sankapal
Summary: In this study, well-controlled growth of pseudocapacitive nanostructured silver selenide (Ag2Se) thin film was achieved using a simple method, and it was used as an electrode material for supercapacitor application. The experimental results showed that the film exhibited good electrochemical performance and a high capacitance retention rate.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Gregory Kopnov, Sudhansu Sekhar Das, Alexander Gerber
Summary: We investigate the impact of topological inhomogeneity on the response of thin metallic conductometric sensors to external stimuli. The percolation model is extended to consider multiple independent scattering mechanisms contributing to resistivity, with each scattering term predicted to increase and diverge at the percolation threshold. Experimental tests using thin films of hydrogenated palladium and CoPd alloys support the model, showing a linear growth in hydrogen scattering resistivity in the fractal topology range. This enhancement in resistivity response can be beneficial for detecting small changes in bulk material response.
Article
Optics
Zhaoxin Geng, Zhaoyang Wang, Chang Liu
Summary: In this study, a flexible terahertz metamaterial biosensor was designed, fabricated, and characterized. The metamaterial exhibited multi-resonance dips in a specific frequency range and had the capability to self-correct sensing errors. The sensitivity and performance of the metamaterial could be tuned by adjusting its geometric parameters.
Review
Chemistry, Multidisciplinary
Bingbing Yang, Linghua Jin, Renhuai Wei, Xianwu Tang, Ling Hu, Peng Tong, Jie Yang, Wenhai Song, Jianming Dai, Xuebin Zhu, Yuping Sun, Shujun Zhang, Xiaolin Wang, Zhenxiang Cheng
Summary: This paper summarizes the development of bismuth ferrite thin films in recent years, introduces the method and challenges of chemical solution route preparation. It also proposes an all-solution chemical-solution deposition (AS-CSD) method to prepare ferroelectric films with different orientations, and studies their growth, structure, and ferroelectric properties.
Article
Optics
Yu Xue, Ziliang Ruan, Liu Liu
Summary: A high-sensitivity electrode-free photonic electric field sensor is introduced in this study, which utilizes a thin film lithium niobate platform and a Michelson interferometer as the sensing element. The sensor achieves a minimal detectable electric field amplitude of 8.43 mV/m/Hz(1/2) and enables vectorial response with a measured extinction ratio (ER) of 38 dB.
Article
Chemistry, Physical
Manni Chen, Zhipeng Zhang, Runze Zhan, Juncong She, Shaozhi Deng, Ningsheng Xu, Jun Chen
Summary: The study successfully fabricated a nanocrystalline Ga2O3 thin film X-ray detector with fast response and high sensitivity, showing promising detection performance and structural characteristics. The excellent crystalline structure of Ga2O3 thin films is the key factor for achieving fast response of the device.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Xiaowu Tang, Henok Getachew Girma, Zhijun Li, Jisu Hong, Bogyu Lim, Seo-Hyun Jung, Yejin Kim, Sang Yong Nam, Kyunghun Kim, Hoyoul Kong, Se Hyun Kim
Summary: In this study, the facile dragging mode EHD jet printing of a polymer-wrapped semiconducting single-walled carbon nanotube ink was investigated for fabricating NO gas-sensing field-effect transistors. By optimizing printing parameters, high-performance FETs were obtained, which were demonstrated to be effective NO sensors with high sensitivity and selectivity. The dragging mode EHD jet printing simplifies patterning processes and shows potential as a reproducible method for the fabrication of next-generation gas sensors.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Medicinal
Hui Huang, Renmei Zhou, He Wen, Zhixiang Xu, Shengmei Zhang, Weixue Wang, Daniel Krosky, Robyn Miller
Summary: Cardiolipin (CL), as a unique phospholipid in mitochondria, plays critical roles in membrane structure, respiration, dynamics, fragmentation, and mitophagy. ALCAT1 enzyme converts CL by incorporating polyunsaturated fatty acids, and its overexpression is associated with pathological cardiolipin remodeling and mitochondrial bioenergetics. A robust assay is needed to identify small molecule ALCAT1 inhibitors, and the scintillation proximity assay (SPA) is chosen for its rapid and sensitive measurement capability. Biotinylated lysophosphatidyl glycerol (LPG) is synthesized as a chemical biology tool in developing SPA.
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Ceramics
V. Munusami, K. Arutselvan, S. Vadivel, S. Govindasamy
Summary: In this study, a hybrid sensor based on molybdenum disulfide (MoS2)/graphene was designed and fabricated. The structural and performance properties of the sensor were systematically investigated. The results showed that the fabricated hybrid sensor exhibited superior LPG gas sensing performance, making it suitable for high-performance LPG sensors and home safety applications.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Junfang Shu, Ruirui Yang, Yongqin Chang, Xingqi Guo, Xing Yang
Summary: This study introduces a flexible metal thin film strain sensor with micro/nano structure, which has a large measurement range and high sensitivity strain measurement. It can achieve a maximum strain measurement range of 80% and a gauge factor of 20, with good repeatability and stability, suitable for real-time monitoring of human joint states.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Analytical
Ajeet Singh, Shakti Singh, B. C. Yadav
Summary: A self-powered carbon dioxide (CO2) gas sensor based on CeO2/CdS triboelectric nanogenerator (TENG) was developed, which exhibited good sensitivity and selectivity. The resistive type and self-powered CO2 gas sensing performance of CeO2, CdS, and CeO2/CdS nanomaterials were compared. CeO2/CdS heterostructure was confirmed to form a type II heterojunction through XPS analysis. The CeO2/CdS showed a regular nanosphere morphology with a size range of 30-60 nm. The resistive type CO2 gas sensor achieved a sensor response of 3.96 at 1000 ppm CO2, while the self-powered CO2 gas sensor achieved a response of 30 at the same concentration. The minimum response and recovery times for 250 ppm CO2 were found to be 1835 and 835 ms, respectively. The self-powered CeO2/CdS TENG-based CO2 sensor demonstrated high sensitivity, selectivity, and quick responsiveness.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Materials Science, Multidisciplinary
Anushi Sharma, Priyanka Chaudhary, Arpit Verma, Ravi Kant Tripathi, Rajeev Kumar, Gaurav Gupta, D. P. Mondal, B. C. Yadav, A. K. Srivastava
Summary: Lightweight porous carbon materials have gained significant attention in gas and humidity sensing due to their excellent properties. Carbon foam with a low density of 0.28 g cm(-3) and an electrical conductivity of 32 S cm(-1) was synthesized from phenolic resin using the polyurethane foam impregnation method. The carbon foam-based humidity sensor demonstrated good sensitivity (8.260 M/%RH) at 40 Hz and fast response and recovery times (6 s and 49 s, respectively). It also displayed high repeatability (94%) and stability.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Peramjeet Singh, N. K. Pandey, V. V. Siva Kumar, Vernica Verma, Ajeet Singh, Priya Gupta, B. C. Yadav
Summary: This study aimed to investigate the impact of annealing temperature on the characteristics of MoO3. Nanoparticles of MoO3 were synthesized using hydrothermal technique and made into thin films via spin coating method. The films were annealed at different temperatures and their structural, morphological, electrical, and optical properties were examined. The films were also tested as sensors for liquefied petroleum gas and humidity. The results showed that the annealing temperature affected the properties of the films, and the film annealed at 600 degrees C exhibited the best sensing response to the gas and humidity.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Physical
Nirbhay Singh, Shweta Tanwar, Pradip Kumar, A. L. Sharma, B. C. Yadav
Summary: A cost-effective, environment-friendly polyaniline-wrapped activated carbon-FeOOH ternary composite electrode is developed for efficient and sustainable energy storage. The electrode shows structural stability and potential as an energy storage device. The ternary composite utilizes polyaniline maximum and exhibits high capacitance and electrochemical performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Rajnish Raj, Pooja Lohia, D. K. Dwivedi, Pravin Kumar Singh, Arpit Verma, B. C. Yadav
Summary: This research presents a synthesis approach for a highly responsive and cost-effective Ge-Sb-S nanomaterial for photodetection system. The characterization of the samples was performed using various techniques including XRD and SEM. The photodetector device made of (GeS2)(40)(Sb2S3)(60) showed the highest responsivity, EQE, and detectivity at a bias potential of 5 V.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Aastha Singh, Ajeet Singh, Arpit Verma, Bal Chandra Yadav, Vishal Chaudhary
Summary: This study reports on the development of an energy-efficient and economic ammonia-detecting chemiresistor using hydrothermally engineered ZnCo2O4 nanoflakes. The morphology and crystal structure of the nanoflakes were examined, and the chemiresistor demonstrated superior sensing performance in terms of response and recovery times at different concentrations of ammonia. The high surface area and stable crystal structure of the ZnCo2O4 nanoflakes contribute to the enhanced sensing performance.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Jitesh Pani, Devkaran Maru, Priyanka Chaudhary, Jitendra Gangwar, Kanapuram Uday Kumar, Bal Chandra Yadav, Hitesh Borkar
Summary: In this study, MoS2 nanostructures with improved interlayer spacing were synthesized through different reaction times. The synthesized MoS2 structures exhibited 3D flower-like and ultrathin 2D sheet-like morphologies. The enhanced interlayer spacing in the nanostructures was confirmed through various analytical techniques. The MoS2 nanoflower demonstrated excellent physicochemical properties and showed high specific capacitance and cyclic stability.
Article
Nanoscience & Nanotechnology
Arpit Verma, Bal Chandra Yadav
Summary: The aim of this research is to evaluate the acetone-sensing performance of the heterostructured nanohybrid of WO3/WS2 using a rapid chemiresistive sensor. The results show the formation of a 2D/2D nanosheet-like system of the WO3/WS2 heterostructure, and the sensor responds to acetone concentrations of 1000 and 1 ppm with values of 132.5 and 17.0, respectively. Therefore, this sensor device has potential applications in biomedical and industrial-scale utilization. Rating: 8 out of 10.
ACS APPLIED NANO MATERIALS
(2023)
Article
Environmental Sciences
Maikesh Mathur, Arpit Verma, Ajeet Singh, B. C. Yadav, Vishal Chaudhary
Summary: A nano-enabled low-trace monitoring system has been developed for detecting acetone, which has the potential to revolutionize non-invasive diagnosis of human diabetes and environmental monitoring. The system utilizes CuMoO4 nanorods as a sensing platform and demonstrates excellent acetone detection performance, with rapid response time and long-term stability. This work offers a promising alternative to invasive biomedical diagnostics and opens new possibilities for nanoenabled acetone monitoring technologies.
ENVIRONMENTAL RESEARCH
(2023)
Article
Energy & Fuels
Nirbhay Singh, Shweta Tanwar, A. L. Sharma, B. C. Yadav
Summary: Supercapacitors are the most dependent storage technologies, offering faster energy supply, sustainability, and high-capacity retaining. This research focuses on the development of a sustainable activated carbon-based iron oxyhydroxide material prepared via a low-temperature hydrothermal technique. The material exhibits excellent cyclic stability, elemental composition, and electrochemical performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Electrical & Electronic
Arpit Verma, Priyanka Chaudhary, Anshika Singh, Ravi Kant Tripathi, Bal Chandra Yadav, Pratima Chauhan
Summary: This research presents an innovative paper electronics device with Bi2S3 nanorods integrated into a polyaniline matrix, aiming to achieve high external quantum efficiency for energy conversion. The device shows a large photoresponsivity and high external quantum efficiency at low drift potential and small optical power. It also exhibits notable responsiveness under flexibility without the use of any binder.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Anshika Singh, Pratima Chauhan, Arpit Verma, B. C. Yadav
Summary: An enhanced photoresponse was observed in the Mn-Co Nanoferrites (MCFs)-Polyaniline (PANI) nanohybrid architecture due to the formation of interface between PANI and MCFs, which provided a conduction pathway. X-ray photoelectron spectroscopy (XPS) suggested the presence of various carbon peaks in the MCF-PANI nanohybrid. The constructed photodetector device exhibited high photoresponsivity, detectivity, and fast rise/decay time due to the intimate interaction between MCFs and PANI at their interface.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Chemistry, Physical
Prabhakar Yadav, Kuldeep Sahay, Arpit Verma, D. K. Maurya, B. C. Yadav
Summary: This review highlights the mechanism, design principles, materials, and applications of triboelectric nanogenerators (TENGs). It discusses TENGs as self-powered sensors for various purposes, their ability to store energy and capture energy from different sources, and their potential use in the biomedical field. The review emphasizes how TENG technology can contribute to advancements in energy harvesting, environmental monitoring, and healthcare.
SUSTAINABLE ENERGY & FUELS
(2023)
Correction
Materials Science, Multidisciplinary
Sarvesh Kumar Avinashi, Ajaz Hussain, Kuldeep Kumar, Bal Chandra Yadav, Chandkiram Gautam
OXFORD OPEN MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Arpit Verma, Anshika Singh, Priyanka Chaudhary, Ravi Kant Tripathi, B. C. Yadav, Pratima Chauhan, Devesh Kumar
Summary: In this research, we investigated the photodetection mechanism of WS2 nanosheets embedded in a polyvinyl alcohol matrix. The nanosheets were synthesized and embedded in the matrix using a solution method. The SEM micrographs confirmed the successful incorporation of WS2 nanosheets in the matrix. XRD results revealed the crystal structure of the nanosheets, while a Tauc plot showed the optical band gap energy. The zeta potentials and photodetection measurements were also analyzed.
MATERIALS ADVANCES
(2023)