Article
Materials Science, Ceramics
V. Paolucci, J. De Santis, L. Lozzi, M. Rigon, A. Martucci, C. Cantalini
Summary: This study reports on the detection of ppb-level NO2 using ZnO nanocrystalline film with visible-light and mild thermal-activation modes. Trivalent and tetravalent doping trigger fast response behavior, with the best performance seen from a combination of purple-blue light and thermal activation. The influence of relative humidity on gas sensing performances is also investigated, with a slight decrease in NO2 response observed at 40% RH.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Mohamed Morsy, Amir Elzwawy, Ahmed I. Abdel-Salam, M. M. Mokhtar, A. B. El Basaty
Summary: By synthesizing PANI-TNT-rGO nanocomposite and applying it as a humidity sensor, there is potential for significant applications in the field of humidity sensing. Experimental results show that the sensor has fast response time and high sensitivity.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Chemistry, Applied
Umphan Ngoensawat, Attasith Parnsubsakul, Supakpong Kaitphaiboonwet, Tuksadon Wutikhun, Chaweewan Sapcharoenkun, Prompong Pienpinijtham, Sanong Ekgasit
Summary: The study developed a nanohybrid ink with improved solvent resistance and message encryption capability through electrostatic self-assembly, providing enhanced print permanence under wet conditions. The ink's high water resistance allows for higher security levels and reveals hidden messages in specific solutions.
CARBOHYDRATE POLYMERS
(2021)
Article
Polymer Science
Amin Babaei-Ghazvini, Bishnu Acharya
Summary: The study investigates the development of humidity-responsive sensors using cellulose nanocrystals combined with polyethylene glycol and glycerol, showing promising mechanical and optical properties with reversible color change in response to different humidity levels. The fabricated sensors demonstrated high tensile strength and mesoporous film formation, making them potential candidates for food and drug packaging due to their biodegradability, biocompatibility, and cost-effectiveness.
Article
Materials Science, Paper & Wood
Saija Vaisanen, Rubina Ajdary, Michael Altgen, Kaarlo Nieminen, Kavindra K. Kesari, Janne Ruokolainen, Orlando J. Rojas, Tapani Vuorinen
Summary: Cellulose utilization often requires its dissolution in aqueous NaOH, but limitations such as low temperature and concentration are present. The addition of ZnO aids cellulose dissolution and prevents self-aggregation. This study proposed a new structure for cellulose dissolved in aqueous NaOH-ZnO based on Raman spectroscopic studies and TEMPO+-reactivities.
Article
Materials Science, Multidisciplinary
Amaka J. Onyianta, Anita Etale, Todor T. Koev, Jean-Charles Eloi, Yaroslav Z. Khimyak, Stephen J. Eichhorn
Summary: In this unconventional approach, polypropylene microparticles were suspended and stabilized in aqueous suspensions of amphiphilic cellulose nanocrystals (CNCs) to enable adsorption of the nanoparticles onto the thermoplastic. This method increased the Young's moduli of the CNC-thermoplastic composites and could be extended to other thermoplastics.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Chujun Yao, Jiamin Lin, Yupeng Qu, Kai Jiang, Zhigao Hu, Lequn Li, Ning Xu, Jian Sun, Jiada Wu
Summary: Enhancing the ultraviolet emission from ZnO nanostructures by decorating with WS2 has been achieved, resulting in over 2 times enhancement in the ultraviolet emission of ZnO nanorods covered with a thin WS2 coating. The WS2 decoration tailors the ultraviolet emission of ZnO, and more enhancement can be achieved at low temperatures.
Article
Materials Science, Paper & Wood
Yinan Li, Huixin Li, Jin Huang, Liulian Huang, Lihui Chen, Yonghao Ni, Qinghong Zheng
Summary: A highly transparent ZnO/cellulose composite membrane with UV sensing and shielding abilities was prepared via a facile blending method. The membrane exhibits excellent performance in both UV and visible light regions, making it ideal for high-performance UV detection and protection applications.
Article
Materials Science, Multidisciplinary
Bohdan Kulyk, Beatriz F. R. Silva, Alexandre F. Carvalho, Paula Barbosa, Ana Girao, Jonas Deuermeier, Antonio J. S. Fernandes, Filipe M. L. Figueiredo, Elvira Fortunato, Florinda M. Costa
Summary: This article presents a method for fabricating paper-LIG humidity and temperature sensors by irradiating common filter paper with a pulsed UV laser. The sensors show good linearity, reproducibility, and response time, and demonstrate the potential of paper-LIG for low-cost, sustainable, and environmentally friendly sensing.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Nanoscience & Nanotechnology
Jie Yu, Yufan Feng, Dan Sun, Wenfeng Ren, Changyou Shao, Runcang Sun
Summary: A novel organogel with cellulose nanofibril reinforcement shows excellent conductivity and mechanical properties, along with antifreezing and antidehydration capabilities, due to the combination of sorbitol and CaCl2 for solvent displacement.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Sourav Pratim Das, Rimlee Bhuyan, Bikash Baro, Upamanyu Das, Rupam Sharma, Sayan Bayan
Summary: In this study, a self-powered human motion detector based on triboelectric nanogenerator (TENG) with chemically developed Au-g-C3N4/ZnO based nanocomposite on cellulose paper platform was developed. The hierarchical morphology of the nanocomposite showed higher output voltage, which was attributed to the contribution of Au and ZnO in increasing dielectric constant and surface roughness. The flexible TENG exhibited power generation of approximately 3.5 μW cm(-2) and sensitivity of approximately 3.3 V N-1, and could detect human body movement and its frequency. Machine learning techniques were used to accurately predict body movement based on data from multiple TENG sensors, with accuracy of 99% and 100% achieved using artificial neural network and random forest classifier, respectively. The hierarchical structure-based flexible TENG sensor demonstrated superior sensitivity and accuracy in biomechanical motion recognition using machine learning.
Article
Green & Sustainable Science & Technology
Chun Shi, Lili Zhang, Huiyang Bian, Zhengjun Shi, Jinxia Ma, Zhiguo Wang
Summary: The Ag-ZnO/cellulose nanocomposites with tunable structure and properties were fabricated for degrading MO dye. By adjusting the cellulose fiber size, the morphology of ZnO was controlled, resulting in enhanced photocatalytic activities and recovery efficiency. This approach provides a novel method for improving the performance of Ag-ZnO/cellulose nanocomposites.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Materials Science, Multidisciplinary
Ke Zhang, Yunsheng Li, Wenrui Zhang
Summary: ZnO/alpha-Fe2O3 nanocomposites with ultra-sensitive response to acetone were successfully prepared by hydrothermal and solvothermal methods. The synthesized materials were characterized by SEM, TEM, XPS and other means, and the results indicated that a good heterojunction was constructed between alpha-Fe2O3 nanorods and ZnO nanosheet particles. Gas sensing tests showed that the ZnO/alpha-Fe2O3(S-2) sensor exhibited superior performance, with high response (Ra/Rg = 62.8), fast response and recovery time (4 s and 10 s) to 100 ppm acetone at 220 degrees C. The n-n heterojunction effect and structural characteristics were identified as the main reasons for the performance improvement. The nanocomposites have promising prospects in the field of acetone detection.
Review
Chemistry, Physical
Dongzhi Zhang, Mengyu Wang, Mingcong Tang, Xiaoshuang Song, Xixi Zhang, Zhanjia Kang, Xiaohua Liu, Jianhua Zhang, Qingzhong Xue
Summary: Humidity sensors are important in various fields. This paper summarizes diversiform humidity sensors with different sensing mechanisms and versatile nanomaterials for constructing humidity sensors. The latest progress in wearable and flexible humidity sensors and self-powered humidity sensors is summarized, and the diverse applications of humidity sensors in fields such as human health care and non-contact switches are demonstrated. The challenges and prospects of nanomaterials-based humidity sensors are also discussed.
Article
Chemistry, Analytical
Chao Duan, Zhaoyang Zhang, Xiaolei Zhang, Mengjie An, Yujia Zhang, Yiping Liu, Ming Lu
Summary: In this study, a high-performance microenvironmental humidity sensor was developed based on the structure of a spider web. The sensor consists of a carbon nanotube network with cellulose nodes constructed on a cotton fabric surface using micro-dissolution technology. The sensor exhibited excellent sensitivity (maximum response of 99.6%) and durability (50 times cycling, 500 times folding, 20 times friction, stability over 3 months). The sensor also showed significantly higher sensitivity and accuracy compared to commercial hygrometers and nappy discoloration strips, indicating its great potential for humidity detection and early warning in body-worn microenvironments.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Multidisciplinary
Mohua Chakraborty, R. Thangavel, Amrita Biswas, G. Udayabhanu
Article
Engineering, Chemical
Amrita Biswas, Sagar Pal, G. Udayabhanu
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2017)
Article
Engineering, Electrical & Electronic
Karunakar Sahoo, Amrita Biswas, Jhasaketan Nayak
SENSORS AND ACTUATORS A-PHYSICAL
(2017)
Article
Physics, Condensed Matter
B. Santoshkumar, Amrita Biswas, S. Kalyanaraman, R. Thangavel, G. Udayabhanu, G. Annadurai, S. Velumani
SUPERLATTICES AND MICROSTRUCTURES
(2017)
Article
Chemistry, Multidisciplinary
Mriganka Das, Amrita Biswas, Bidyut Kumar Kundu, Shaikh M. Mobin, G. Udayabhanu, Suman Mukhopadhyay
Article
Chemistry, Physical
Amrita Biswas, Punita Mourya, Dipanjan Mondal, Sagar Pal, G. Udayabhanu
JOURNAL OF MOLECULAR LIQUIDS
(2018)
Article
Materials Science, Multidisciplinary
B. Purty, R. B. Choudhary, A. Biswas, G. Udayabhanu
MATERIALS CHEMISTRY AND PHYSICS
(2018)
Article
Engineering, Environmental
Shubhra Pareek, Deepti Jain, Shamima Hussain, Amrita Biswas, Rahul Shrivastava, Saroj K. Parida, Hemanta K. Kisan, Hassane Lgaz, Ill-Min Chung, Debasis Behera
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Polymer Science
Bela Purty, Ram Bilash Choudhary, Amrita Biswas, G. Udayabhanu
Correction
Chemistry, Multidisciplinary
Anima Ghosh, Dhirendra K. Chaudhary, Amrita Biswas, Rajalingam Thangavel, G. Udayabhanu
Article
Engineering, Environmental
Mriganka Das, Amrita Biswas, Bidyut Kumar Kundu, M. Adilia Januario Charmier, Attreyee Mukherjee, Shaikh M. Mobin, G. Udayabhanu, Suman Mukhopadhyay
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Chemistry, Physical
Amrita Biswas, Dipankar Das, Hassane Lgaz, Sagar Pal, Udayabhanu G. Nair
JOURNAL OF MOLECULAR LIQUIDS
(2019)
Article
Materials Science, Multidisciplinary
Bela Purty, Ram Bilash Choudhary, Amrita Biswas, G. Udayabhanu
Article
Nanoscience & Nanotechnology
Tanmoy Ghosh, Somrita Mondal, Rituparna Maiti, Sk Masum Nawaz, Narendra N. Ghosh, Enakshi Dinda, Amrita Biswas, Suman Kumar Maity, Abhijit Mallik, Dilip K. Maiti
Summary: Organic fluorescent semiconducting nanomaterials based on pyrazaacene derivatives were efficiently synthesized and displayed high solubility, fluorescence, and photostability. The compounds showed efficient solvent-dependent fluorescence in the visible region and were associated through complementary interactions to afford nanomaterials with a low band gap. Remarkably, the fabricated stacked nanomaterial system exhibited resistive switching behavior, leading to the development of an efficient write-once-read-many-times memory device.
Article
Engineering, Electrical & Electronic
Nishi Mehak, Bindu Rani, Aadil Fayaz Wani, Shakeel Ahmad Khandy, Ajay Singh Verma, Atif Mossad Ali, M. A. Sayed, Shobhna Dhiman, Kulwinder Kaur
Summary: In this study, the electronic, structural, and thermoelectric properties of newly designed layered rare-earth metal germanide halides were investigated. The materials showed promising thermoelectric performance, making them suitable candidates for energy harvesting in thermoelectric applications.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Devidas I. Halge, Vijaykiran N. Narwade, Nabeel M. S. Kaawash, Pooja M. Khanzode, Sohel J. Shaikh, Jagdish W. Dadge, Prashant S. Alegaonkar, Rajeshkumar S. Hyam, Kashinath A. Bogle
Summary: This study presents the design and fabrication of a high-performance blue light photodetector using an n-type cadmium sulfide (CdS) thin film and a p-type polyaniline (PANI). The photodetector demonstrates exceptional performance characteristics, including high responsivity, detectivity, and sensitivity, along with rapid response time and rectification behavior. The research represents a significant advancement in the field of high-performance photodetectors.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Da Hu, Jiabin Lu, Qiusheng Yan, Yingrong Luo, Ziyuan Luo
Summary: This study introduces a chemical mechanical polishing technique based on metal electrochemical corrosion for single-crystal SiC to address the environmental pollution caused by the polishing solution in chemical mechanical polishing. Wear experiments were conducted to investigate the wear properties of SiC C-surface under different grinding ball materials and solutions. The proposed mechanism of material removal in single-crystal SiC via metal electrochemical corrosion was discussed.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Lifang Mei, Long Lin, Dongbing Yan, Yu Liang, Yu Wu, Shuixuan Chen
Summary: This paper investigates the removal of CuO particles from silicon wafer surfaces using a picosecond laser. Numerical calculations and experimental research were conducted, and a thermal-stress coupled finite element model was established. The results show that as the laser energy density increases, the removal rate of CuO particles initially increases and then decreases, while the roughness of the silicon substrate decreases and then increases.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Michihiro Yamada, Shuhei Kusumoto, Atsuya Yamada, Kentarou Sawano, Kohei Hamaya
Summary: In this study, we demonstrated the low-temperature growth of a Ge layer on a Co-based Heusler alloy via Sn doping, which improved the magnetic properties and spin signal.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Xiang-Long Wei, Bao-Feng Shan, Zong-Yan Zhao
Summary: This study synthesized and characterized a CuAlO2/CuGaO2 heterostructure and evaluated its photocatalytic performance. The heterostructure exhibited superior performance compared to individual CuAlO2 and CuGaO2 photocatalysts, with increased carrier concentration, enhanced redox capabilities, superior electrochemical stability, and reduced interfacial resistance. Photocatalytic experiments demonstrated the remarkable oxidation potential and notable reduction activity of the heterostructure, outperforming CuAlO2 and CuGaO2 in degradation rates and hydrogen production rates, respectively. These findings highlight the superior performance and broad applicability of the CuAlO2/CuGaO2 heterostructure in various photocatalytic reactions.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Micka Bah, Daniel Alquier, Marie Lesecq, Nicolas Defrance, Damien Valente, Thi Huong Ngo, Eric Frayssinet, Marc Portail, Jean-Claude De Jaeger, Yvon Cordier
Summary: This study investigates the AlN nucleation layer issue in GaN high frequency telecommunication and power switching systems fabricated after heteroepitaxy on Silicon or Silicon Carbide. It is shown that using 3C-SiC as an intermediate layer can significantly decrease RF propagation losses. Measurements and analyses demonstrate that dopant diffusion into the 3C-SiC pseudo-substrate is confined beneath the interface, and a slightly conductive zone is present beneath the AlN/3C-SiC interface, explaining the low propagation losses obtained for the devices. This work highlights the importance and efficiency of the 3C-SiC intermediate layer as a pseudo-substrate.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Shuang Wang, Lijun Wu, Zhiqing Wang, Ziyue Qian
Summary: The geometric structure and electrical properties of zigzag and armchair DWSiNT perfect tubes with different Stone-Wales defects were simulated using the SCC-DFTB method. It was found that the atomic arrangement, stability, energy gap, and charge distribution strongly depend on the type of tube. The effects of strong and weak electric fields on the tubes were also investigated, showing different impact on stability and energy gap. These findings have implications for future experimental studies.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Nanda Kumar Reddy Nallabala, Sunil Singh Kushvaha, Sambasivam Sangaraju, Venkata Krishnaiah Kummara
Summary: This study focuses on the preparation and performance of MIS-type high-k dielectric oxide-based UV photodetectors. The researchers found that the Au/Ta2O5/GaN devices prepared on Ta2O5/GaN heterojunction with post-annealing exhibited improved photoresponsivity, EQE, and rise/fall times. This improvement is attributed to the optimized band configuration of the Ta2O5/GaN heterostructure and the effect of post-annealing on photogenerated charge carriers.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Jean-Francois Michaud, Marc Portail, Daniel Alquier, Dominique Certon, Isabelle Dufour
Summary: This paper reviews the use of MEMS devices without sensitive layers in gas detection applications. These devices can measure a physical property of the gas to determine its concentration, and have the advantages of generality and high detection limits.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Kanyu Yang, Chaojie Shi, Ruizhao Tian, Haoyue Deng, Jie He, Yangyang Qi, Zhengchun Yang, Jinshi Zhao, Zhen Fan, Jun Liu
Summary: This study investigates the electrical and synaptic properties of Ag/TiO2 nanorod/FTO-based RRAM devices, focusing on the impact of different seed layer thicknesses on nanorod thickness and RRAM performance. The devices show remarkable achievements in terms of endurance, self-compliance, and resistance switching ratio. The switching mechanism is attributed to space-charge-limited conduction resulting from electron trapping in oxygen vacancy traps. The devices also maintain stable synaptic properties even after undergoing multiple cycles of long-term potentiation and depression.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Karthickraj Muthuramalingam, Wei-Chih Wang
Summary: This study presents a non-destructive approach using terahertz time-domain spectroscopy (THz-TDS) to estimate the electrical properties of semi-insulating compound semiconductors. The study successfully measures the resistivity and carrier concentration of semi-insulating Silicon Carbide (SiC) and Indium Phosphide (InP) wafers using THz-TDS in transmission mode. The simplified Drude model and the Nelder-Mead algorithm are employed to estimate the electrical properties, and the results are in accordance with the manufacturer specifications. The feasibility of non-destructive mapping of the electrical properties is demonstrated, offering a promising tomographic inspection approach for online monitoring.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Pengfei Wei, Rui Tong, Xiaofeng Liu, Yao Wei, Yongan Zhang, Xu Liu, Jian Dai, Haipeng Yin, Dongming Liu
Summary: This study investigates the influence of SiNx and SiOxNy as rear-side passivation films on the performance of PERC+ cells. SiNx film is found to have better passivation performance and resistance to aluminum paste erosion, while SiOxNy film exhibits better optical performance. By designing multi-layer SiNx/SiOxNy/SiNx stacks, the cells' efficiency and bifaciality are significantly improved.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Shuangting Ruan, Xiaolan Li, Wen Cui, Zhihui Zhang, Zhihui Xu, Huanqi Cao, Shougen Yin, Shishuai Sun
Summary: Integrating photosensitive electrode materials can effectively improve the low temperature tolerance and enhance energy density and power density. The surface morphology reconstruction technique can increase the active surface area and improve electrolyte contact, leading to higher specific capacity. Additionally, the electrodes demonstrate excellent photoelectric and photothermal conversion abilities, allowing the supercapacitor to maintain high energy density even at low temperatures.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Review
Engineering, Electrical & Electronic
Ashmalina Rahman, James Robert Jennings, Mohammad Mansoob Khan
Summary: This review provides a comprehensive overview of the synthesis and applications of nanostructured CuInS2 in photocatalytic applications. Various strategies, including the introduction of dopants, surface decoration, and heterojunction formation, have been summarized to improve the photocatalytic performance of CuInS2. However, scientific challenges such as the high carrier recombination rate limit the broad application of CuInS2.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
