Article
Environmental Sciences
Devaraj Manoj, Saravanan Rajendran, F. Gracia, Sabah Ansar, Madhappan Santhamoorthy, Matias Soto-Moscoso, M. A. Gracia-Pinilla
Summary: The capacity to generate a constant signal response from an enzyme on an electrode surface has been a fascinating topic of research for the past three decades. The immobilization of dual enzymes on the electrode surface using mesoporous materials allows for high loading of enzymes and provides a protective environment, resulting in long-term stability. The utilization of a redox mediator in second-generation biosensing of hydrogen peroxide improves the selectivity and sensitivity of the sensor.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
Minjin Kim, In-woo Choi, Seung Ju Choi, Ji Won Song, Sung-In Mo, Jeong-Ho An, Yimhyun Jo, SeJin Ahn, Seoung Kyu Ahn, Gi-Hwan Kim, Dong Suk Kim
Summary: The study found that the anions of Li-salt dopants affect the electrical properties of ETLs, with Li2CO3 doping leading to deeper conduction bands and higher efficiency in PSCs.
Article
Engineering, Environmental
Patricia Garcia-Munoz, Niels P. Zussblatt, Bradley F. Chmelka, Victor A. de la Pena O'Shea, Fernando Fresno
Summary: The photocatalytic activity of iron-grafted mesoporous Pt/TiO2 catalysts for hydrogen production from water-ethanol mixtures was investigated. Results showed that Fe is primarily located on the catalyst surfaces as Fe2O3 and does not dope the TiO2 structure. The catalyst with the lowest iron content exhibited the highest activity for ethanol dehydrogenation, attributed to the higher surface dispersion of Fe and efficient formation of a surface heterojunction between Fe2O3 and TiO2 that favors charge separation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Wang Ke, Xiangdong Qin, Robert M. Palomino, Juan Pablo Simonovis, Sanjaya D. Senanayake, Jose A. Rodriguez, Francisco Zaera
Summary: The redox properties of titania films grown by atomic layer deposition (ALD) on SBA-15 were investigated as a function of film thickness. Si-29 CP/MAS NMR and infrared absorption spectroscopy were used to determine the surface species formed during initial deposition and the transition from silica to titania surfaces. The reducibility of titania sites by CO and H-2 was studied ex situ using electron paramagnetic resonance (EPR) and in situ with ambient-pressure X-ray photoelectron spectroscopy (XPS). The results showed that the amorphous titania ALD films were more easily reduced and the reduction was reversible. The surface also exhibited a transition, with mixed Si-O-Ti sites forming in the early ALD cycles and a more typical titania surface developing as the film grew.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Ceramics
Heecheol Shin, Le Thai Duy, Hyungtak Seo
Summary: This paper presents a deposition approach based on ALD and RTA to improve the temperature coefficient of resistance (TCR) of VOX films by aluminum doping. Introducing Al3+ dopants can hinder the thermally activated phase transition of VO2 phases, leading to an improvement in TCR. However, excessive Al doping can have adverse effects on TCR.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Electrical & Electronic
Ozer celik, Memed Duman
Summary: The noise properties of a-VWOx thin films deposited by reactive DC sputtering were investigated for microbolometer applications. It was found that there is no random telegraph switching noise in the deposited films, and the material was deemed suitable for microbolometer applications. The effects of electrode material and structure on contact resistance, as well as different currents and electrode structures on 1/f noise measurements, were also analyzed.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Energy & Fuels
Ram Bilash Choudhary, Sarfaraz Ansari
Summary: Polymeric hybrid materials of polyindole-reduced graphene oxide-titanium dioxide (PIn-rGO-TiO2) have been synthesized and exhibit improved electrochemical performance, including increased porosity and electrical conductivity. The inclusion of TiO2 enhances redox activity and charge storing capability. These materials show promise for high-performance supercapacitor applications.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Electrical & Electronic
Maryam Ahmadi, Behzad Koozegar Kaleji
Summary: In this study, Ag doped TiO2-CuO composite nanoparticles were synthesized by sol-gel method for the treatment of industrial effluents. The characterization of the nanoparticles was conducted using various techniques, and they exhibited good photocatalytic degradation performance in degrading methylene blue dye solution.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Physics, Applied
Pankaj Chamoli, Ravi K. Shukla, Achintya N. Bezbaruah, Kamal K. Kar, K. K. Raina
Summary: A rapid microwave green synthesis method for TiO2 tripods using Mangifera indica leaf extracts was demonstrated, resulting in unique tripods with porosity that showed efficient degradation of target contaminants and good recyclability and adsorption properties. This method has potential applications in water treatment for photocatalytic/adsorption processes.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Multidisciplinary Sciences
Dukhyung Lee, Dasom Kim, Dai-Sik Kim, Hyeong-Ryeol Park, Changhee Sohn, Seon Namgung, Kunook Chung, Young Chul Jun, Dong Kyun Kim, Hyuck Choo, Young-Geun Roh
Summary: This report investigates the efficient electromagnetic heating of thermistor materials through plasmonic nanogap structures, focusing on the potential of nanorod dimer antennas filled with VO2 for long-wavelength infrared detection. Simulation results demonstrate the high heating ability of the nanogap, leading to a temperature rise several times higher than expected, making the dimer structures promising for high sensitivity bolometers.
SCIENTIFIC REPORTS
(2021)
Article
Nanoscience & Nanotechnology
Zhuo Wen, Xinyue Shi, Xuejing Li, Weicai Liu, Yukun Liu, Renyuan Zhang, Yiqiang Yu, Jiansheng Su
Summary: Two major issues hindering the clinical practice of titanium dental implants are immediate/early loading risks and peri-implantitis. In this study, a potential solution was developed using zinc oxide nanoparticle-loaded mesoporous TiO2 coatings (nZnO/MTC-Ti). The coatings controlled the release of Zn2+ and optimized the charge distribution, resolving the cytotoxicity of the nanoparticles and promoting osteogenic activity and inhibiting bacterial infection.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Electrical & Electronic
Jinlin Wang, Xiaojun Zhou, Jian Ni, Jiayi Guan, Minghao Hu, Rufeng Wang, Yaofang Zhang, Juan Li, Hongkun Cai, Jianjun Zhang
Summary: The study introduces a TiO2 composite treatment strategy using a low-concentration hydrochloric solution and ultraviolet ozone to reduce surface defects and enhance device performance. Measurements show that the treated TiO2 films have improved electron extraction capability and fewer defect states. Ultimately, the power conversion efficiency (PCE) is increased to 18.9%, a 1.3% improvement compared to the control PSCs.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Chemical
Adel A. Ismail, L. Al-Hajji, I. S. Azad, A. Al-Yaqoot, N. Habibi, M. Alseidi, Sh. Ahmed
Summary: The study found that the Ag/TiO2 films coated with silver nanoparticles exhibited excellent antibacterial properties, with the best inhibitory effect on Vibrio parahaemolyticus, Aeromonas hydrophila, and Bacillus subtilis. Exposing the films to direct light for 3 hours was sufficient to reduce the bacterial counts. The higher antibacterial activity of Ag/TiO2, Ag/ZnO, and Ag/Fe2O3 films compared to pristine ZnO, Fe2O3, and TiO2 films might be attributed to the surface plasmon resonance of Ag nanoparticles, which facilitated the separation of charge carriers and enhanced the antibacterial activity.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Chemistry, Applied
Filippo Vitale, Maria Luisa Saladino, Francesco Armetta, Alessandro Presentato, Rosa Alduina, Alessandro Mercadante, Valeria La Parola, Francesco Giacalone
Summary: In this study, a new biocide based on hybrid mesoporous silica nanoparticles (MSN) was developed and tested against a Gram-positive bacterial strain. The hybrid material showed higher antibacterial activity than its single constituents, possibly due to the high local concentration of the ionic liquid anchored to nanoparticles. The material demonstrated promising antibacterial activity on bio-deteriorated stone fragments.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
Jinghao Huo, Yijie Ren, Yujia Xue, Yi Liu, Shouwu Guo
Summary: In this study, sulfur/nitrogen dual-doped reduced graphene oxide foam was prepared by a simple sol-gel method and mesoporous titanium dioxide nanoparticles were deposited on its surface to enhance Li+ ions diffusion kinetics. The synthesized SNG/TiO2 composite exhibited excellent reversible discharging capacity and good rate capability, making it a promising anode material for lithium ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Yue Wang, Minjae Kim, Akendra Singh Chabungbam, Dong-eun Kim, Qingyi Shao, Ioannis Kymissis, Hyung-Ho Park
Summary: This study prepared La2Ti2O7-x thin film by atomic layer deposition on TiN substrate, and confirmed its clockwise forming-less resistive switching behavior. The resistive switching mechanism was achieved by voltage-driven and oxygen vacancy doping-controlled Mott transition.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Physical
Sarika B. Dhavale, Vithoba L. Patil, Satyajeet S. Patil, Dipali S. Patil, Rushikesh P. Dhavale, Hyung-Ho Park, Pramod S. Patil
Summary: Three dimensional hierarchical porous carbon was prepared from dry almond leaves (Terminalia catappa) by a two step process. The C-1000 carbon sample showed a surface area of 491.3 m(2) g(-1) and a specific capacitance of 212 F g(-1), while the AC-2 sample exhibited a specific surface area of 988.7 m(2) g(-1) and a specific capacitance of 394 F g(-1), with excellent cycling stability and mechanical flexibility, making it suitable for portable electronics application.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Multidisciplinary
Swapnajit Mulik, Suprimkumar D. Dhas, Annasaheb Moholkar, Vinayak G. Parale, Hyung-Ho Park, Pramod A. Koyale, Vijay S. Ghodake, Dillip K. Panda, Sagar D. Delekar
Summary: The binary and ternary nanocomposites of Co3O4@Co/N-CNTs with Ag NPs and rGO were successfully synthesized using a wet chemical route. Among different compositions tested, a ternary nanocomposite with a stoichiometric ratio of 7.0:1.5:1.5 of Co3O4@Co/N-CNTs, Ag NPs, and rGO exhibited the highest specific capacitance. The optimized nanocomposite showed excellent electrochemical stability and achieved an energy density of 74.1 W h.kg-1 and a power density of 443.7 W.kg-1.
Article
Biochemical Research Methods
Sangwoo Shin
Summary: DC electrokinetics enables the manipulation and assembly of colloidal particles, contributing to the understanding of life origin and the synthesis of new materials for various applications.
Article
Nanoscience & Nanotechnology
Jinwoo Kim, Seenu Ravi, Kijun Kim, Yujin Choi, Hyung-Ho Park, Youn-Sang Bae
Summary: A novel porous covalent organic polymer catalyst with dual acid sites was developed for efficient esterification of levulinic acid with aliphatic alcohols. The catalyst exhibited high conversion and selectivity, and showed good recyclability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Ceramics
Minjae Kim, Jeong Yun Hwang, Dong-eun Kim, Taehwan Song, Kyu Hyoung Lee, Hyung-Ho Park
Summary: In this study, optimized atomic layer deposition (ALD) process parameters were used to deposit crystalline ZrO2 films. Crystalline characteristics of ZrO2 films were obtained by controlling the deposition temperature. The mixture of tetragonal and monoclinic phases of the ZrO2 films exhibited the highest corrosion resistance properties.
CERAMICS INTERNATIONAL
(2023)
Article
Mechanics
Jesse T. Ault, Sangwoo Shin, Allan Garcia, Antonio Perazzo, Howard A. Stone
Summary: Glycerol is hygroscopic and its viscosity decreases as it absorbs water vapour from the atmosphere. Experimental measurements of glycerol viscosity in a rheometer show that it decreases with time as water is absorbed and transported within the glycerol. The rate of viscosity decrease has a non-monotonic relationship with the rheometer gap height.
JOURNAL OF FLUID MECHANICS
(2023)
Article
Engineering, Environmental
Roxana Paz, Herlys Viltres, Nishesh Kumar Gupta, Carolina Leyva, Rushikesh P. Dhavale, Hyung-Ho Park, Adolfo Romero-Galarza, Amin Reza Rajabzadeh, Seshasai Srinivasan
Summary: This study introduces the effective sequestration of Eu(III) ions from aqueous solutions using low-cost metal-organic frameworks (MOFs). The MOFs exhibit high Eu adsorption capacity and hydrolytic stability at a wide pH range. The adsorption process is governed by chemical interactions between the carboxylic acid/carboxylate group and Eu(III) ions, and preferential adsorption behavior for trivalent lanthanides is observed. The study also demonstrates the regeneration capabilities of the MOFs, making them suitable for capturing Eu(III) ions from waste solutions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Physics, Fluids & Plasmas
Viet Sang Doan, Dong-Ook Kim, Craig Snoeyink, Ying Sun, Sangwoo Shin
Summary: We study the diffusion and aggregation of ellipsoidal particles induced by ionic solute gradients. Contrary to the common assumption that diffusion and aggregation are independent of particle shape, we experimentally show that the shape of the particles can affect these processes when the thin Debye layer approximation is relaxed. By tracking the translation and rotation of different ellipsoids, we find that the phoretic mobility of ellipsoids is sensitive to their eccentricity and orientation relative to the solute gradient, and can exhibit nonmonotonic behavior under strong confinement. We demonstrate that modifying theories for spheres can easily capture the shape- and orientation-dependent diffusion and aggregation of colloidal ellipsoids.
Article
Chemistry, Physical
Wiem Nasri, Zied Driss, Ridha Djebali, Kyu-Yeon Lee, Hyung-Ho Park, Abderazak Bezazi, Paulo N. B. Reis
Summary: This paper reports the thermal behavior of plain-woven CFRP composites using simulation at the micro-, meso-, and macro-scales. The numerical prediction of thermal conductivity was compared to experimental findings and analytical models, showing good results. A parametric study revealed that fiber volume fraction, temperature, and interphase fiber/matrix thickness significantly influenced the thermal conductivity of the composite, while matrix porosity had a relatively smaller impact.
Article
Energy & Fuels
Vinod V. Patil, Sachin S. Pujari, Shraddha B. Bhosale, Sambhaji S. Kumbhar, Vinayak G. Parale, Chandrakant D. Lokhande, Jayavant L. Gunjakar, Mukund G. Mali, Dattakumar S. Mhamane, Hyung-Ho Park, Umakant M. Patil
Summary: This study developed binder-free hydrous cobalt phosphate thin film electrocatalysts using the SILAR method and observed the impact of annealing on the OER efficiency. The as-prepared hydrous cobalt phosphate demonstrated outstanding OER performance and overall water splitting ability.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Environmental Sciences
Vishwanath Hiremath, Jayun Heo, Hyung-Ho Park, Jeong Gil Seo
Summary: This study improves the crystallinity of aerogel materials and enhances their performance in photocatalytic applications. It is found that the phase transformation in TiO2 aerogel only occurs in specific phase combinations, and samples with rutile phase composition have higher oxygen vacancies. The developed TiO2 aerogel photocatalysts exhibit efficient degradation ability for dyes.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Chemical
Yujin Choi, Hyug Hee Han, Kwang Hyun Oh, Hyung-Ho Park, Seenu Ravi, Youn-Sang Bae
Summary: In this study, phosphite-based porous covalent organic polymers (PCOPs) with numerous aromatic and acidic phosphite sites, large surface areas, and hierarchical pore structures were synthesized and found to efficiently remove sulfur-containing PPCPs from water.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Physical
Rushikesh P. Dhavale, Vinayak G. Parale, Haryeong Choi, Taehee Kim, Kyu-Yeon Lee, Varsha D. Phadtare, Hyung-Ho Park
Summary: In this study, epoxy-thiol crosslinked silica aerogels were synthesized using a unique method, resulting in improved mechanical resilience for pollutant adsorption. By adjusting the ratio of catalysts and precursors, aerogels with different characteristics and properties were obtained.
APPLIED SURFACE SCIENCE
(2024)
Article
Engineering, Electrical & Electronic
Kehao Feng, Zhenghua Zhang, Guohua Bai, Xiuyuan Fan, Rongzhi Zhao, Xuefeng Zhang
Summary: This paper proposes a new method to accurately evaluate the high-frequency power loss of soft magnetic materials. Through a two-step calibration, the system is able to compensate for the phase angle discrepancy between the exciting current and induced voltage, enabling a higher power loss measurement frequency.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Mingfang Kang, Tong Liu, Hongmei Sun, Lin Li, Keliang Wang
Summary: In this study, the absorption performance of ambient nitrogenous toxic gases on a monolayer of blue phosphorus phase germanium selenide (GeSe) was investigated using density-functional theory calculations. The results showed that GeSe monolayer exhibits higher sensitivity and selectivity for the hazardous gas NO.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Yaqiong Niu, Zhicheng Zou, Longsheng Cheng, Chaofeng Ye
Summary: This paper proposes a novel method to stabilize the laser diode output using a close-loop control with two feedbacks. The proposed method performs better for long-time operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jiajie Li, Ying Liu, Zhen Chai, Qian Cao, Renjie Li, Yueyang Zhai
Summary: This study proposed an efficient and high-quality beam-splitting method based on a diffractive optical element, enabling multichannel SERF atomic magnetometers to achieve ultra-high consistency and sensitivity. It has significant applications in array biomagnetic measurement systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
E. Oliveira, C. Doering, H. Fouckhardt
Summary: With the development of Lab on a chip technology, fluid management using dispersed droplets has become an important approach. Electrowetting on dielectric (EWOD) is one method for droplet actuation, but it requires prior definition of droplet positions. Optoelectrowetting (OEW) goes further by allowing changes in electrical parameters through impinging light spots, without the need for predefined droplet positions. This study re-evaluates the key parameters of OEW and explores their effects on droplet actuation using numerical optimization methods.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Haipeng Wang, Zhiguo Wang, Gancheng Zhu, Shuai Zhang
Summary: A novel capacitive proximity skin was developed to improve the performance of robotics in handling liquid-filled containers. This skin features a flexible structure that can adapt to different grippers and seamlessly integrate with Robot Operating System. Experimental results demonstrated that this proximity skin achieved data-lossless detection and contactless measurement of liquid level, making it suitable for grasping operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Tsenguun Byambadorj, Xiangyu Zhao, Yutao Qin, Yogesh B. Gianchandani
Summary: In this research, a monolithically microfabricated Knudsen pump (KP) without suspended membranes was presented. These pumps offer improved mechanical robustness, wider process window, and simplified microfabrication process compared to previous designs. The experimental results matched the modeling results well, indicating the potential for monolithic integration onto complex lab-on-a-chip systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Hamed Karami, Saeed Karami Chemeh, Vahid Azizi, Hooman Sharifnasab, Jose Ramos, Mohammed Kamruzzaman
Summary: Aroma is a significant quality trait for pharmaceutical plants and their products, indicating the quality of the raw material. An electronic nose is an efficient approach for identifying and evaluating the aroma of essential oils. In this study, tarragon was dried at different temperatures and air velocities, and the purity of tarragon essential oil was evaluated using an electronic nose. Multivariate data analysis and artificial neural networks modeling were employed to quantify and classify the obtained essential oils.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Xiaoyang Duan, Dan Xu, Wenjun Jia, Ran Li, Bohao Sun, Ruitian Yan, Wenjie Zhao
Summary: Flower-like WO3/WS2 heterojunction materials constructed via a low-temperature in-situ oxidation method exhibit significant improvements in the detection of NO2 gas in gas sensors, along with good selectivity and reproducibility.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Peng Yu, Mengyang Zhang, Manqi You, Yuxi Gao, Landong Xiao, Yan Peng, Jingxia Lai, Zhouzhao Shi, Siwei Luo, Gencai Guo, Gang Guo
Summary: Recent studies have shown that two-dimensional Janus transition metal dichalcogenides (TMDs) have great potential for applications in gas sensors. By conducting first principles calculations, this study explores the potential application of Pd-doped monolayer HfSeS as gas sensor materials for detecting CO, CO2, NH3, and NO. The results demonstrate the good thermodynamical stability and reversible adsorption of these molecules on both pristine and Pd-doped HfSeS, with Pd-doped HfSeS showing higher sensitivity towards NO due to its metallic behavior upon NO adsorption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jinlan Yang, Linjiao Li, Jun Huang, Quan Zhang, Hiba Affane
Summary: This study proposes a method for large-scale aggregation of micro-particles by creating a vortex region using low-frequency oscillation. Experimental results show that this method can achieve a large aggregation area and has the advantages of low cost and low power consumption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jitendra Singh, Saurabh Kumar Gupta, Vinita
Summary: In this investigation, a Surface Acoustic Wave (SAW) formalin gas sensor was explored for low-level formalin gas sensing applications. The sensor showed stable response and high sensitivity to formalin gas concentration, making it a reliable and useful sensor for room temperature operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Junyao Wang, Yahao Liu, Huan Liu, Qi Hou, Jianxin Xu, Hongxu Pan, Jingran Quan, Yansong Chen, Hanbo Yang, Lixiang Li
Summary: A flexible electrode with a serpentine-shaped tetra-chiral structure was designed to improve the mechanical properties and prevent mechanical fracture of flexible electrodes. The research demonstrated that this structure reduced the maximum tensile stress by 87.19% compared to the existing tetra-chiral structure. The flexible electrode remained conductive even at a strain of 70% and showed resistance values of 5 ohm and 4.4 ohm at a bending angle of 180 degrees and after 1000 fold cycles. Furthermore, the flexible electrodes showed great potential in biological signal monitoring, particularly in collecting ECG and pulse signals.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Taihao Chen, Yong Fang, Mengru Zhu, Zhiwei Zhao, Wei Lei, Zhuoya Zhu, Helong Jiang
Summary: Flexible dual-spectral carbon nanodots/flexible n-silicon heterojunction photodetectors with high responsivity and detectivity are reported. These detectors show photo response in UV illumination and only in forward bias under visible illumination. The photocurrent of the device remains high even under bending strain.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
M. S. Sikandar Bathusha, Israr Ud Din, Rehan Umer, Kamran A. Khan
Summary: Graphene-based nanomaterials are used as embedded sensors to monitor fracture behavior in composite structures. This study investigates the in-situ crack propagation and fracture behavior in a glass fiber reinforced polymer composite using embedded reduced graphene oxide coated fabrics and highly conductive graphene nanoplatelet paper.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
