Article
Chemistry, Analytical
Jianjun Yang, Jiaxuan Liu, Yaxin Li, Xiaobao Yu, Zichuan Yi, Zhi Zhang, Feng Chi, Liming Liu
Summary: This study investigated the electrolyte formulation of a new DSSC with external photoanode structure, and found that the solar cells assembled with titanium electrode had the best photoelectric conversion ability when the concentration of I-2 was 0.048 M.
Article
Materials Science, Multidisciplinary
K. Naveen Kumar, Habibuddin Shaik, V Madhavi, R. Imran Jafri, Jyothi Gupta, G. Nithya, Sheik Abdul Sattar, G. V. Ashok Reddy
Summary: This study investigates the characteristics of tungsten oxide thin films grown using the GLAD technique at different substrate angles. The results show that the films have an amorphous structure, with columnar growth and surface porosity. As the GLAD angle increases, the optical transmittance and bandgap of the films decrease. The study also reveals that the GLAD angle influences the coloration efficiency and diffusion coefficient.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Laid Kadri, Abdelkader Abderrahmane, Georgiana Bulai, Aurelian Carlescu, Corneliu Doroftei, Iuliana Motrescu, Silviu Gurlui, Liviu Leontie, Mohamed Adnane
Summary: TiO2-SiO2 nanocomposite thin films were fabricated and characterized, and their amorphous structure and homogeneous distribution were observed. The deposition temperature had an effect on the optical properties, with lower temperature resulting in increased light transmission in the visible and ultraviolet ranges.
Article
Chemistry, Physical
Dorian Minkov, Lian Nedelchev, George Angelov, Emilio Marquez, Blaga Blagoeva, Georgi Mateev, Dimana Nazarova
Summary: In this study, three PAZO polymer thin films with different thicknesses were characterized using the hybrid dispersion model (HDM) and a single UV/VIS/NIR transmittance spectrum. The HDM model showed better accuracy in describing the optical characteristics of the films compared to four popular dispersion models.
Article
Chemistry, Physical
Christina Kjaer, Emil Vogt, Jeppe Langeland, Nanna Falk Christensen, Thomas Toft Lindkvist, Henrik G. Kjaergaard, Steen Brondsted Nielsen
Summary: Recent developments in fluorescence spectroscopy allow for the measurement of absorption and dispersed fluorescence spectra of isolated molecular ions at low temperatures. Lower temperatures provide narrower spectra and better information on vibronic features. Experiments were conducted on oxazine dyes cooled to around 100 K, and the results showed small Stokes shifts and broader spectra for the darrow-red cations compared to other ionic dyes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Ismail Karakurt, Gunay Basar, Paul Leiderer, Seyma Parlatan, Nihan Arapoglu
Summary: We studied the anomalous lateral diffusion process in thin tungsten trioxide films using optical methods. The diffusion starts at imperfections within the film shortly after H+ ion intercalation begins and progresses parallel to the film surface. We measured the mean square displacement of the diffusion front and calculated the instantaneous diffusion coefficient using its time-dependence. The observed large diffusion coefficients and depth dependence of film expansion can be explained by interfacial jobsharing diffusion of electrons and protons. Raman measurements revealed an additional strong band at 855 cm-1 after the lateral diffusion, indicating the irreversible nature of this process.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Shih-Chieh Hsu, Szu-Han Chao, Nian-Jheng Wu, Jen-Hsien Huang, Jia-Lin Kang, Huei Chu Weng, Ting-Yu Liu
Summary: WO3 nanoparticles and MoO3 nanoribbons were prepared using a microwave-assisted hydrothermal method. A stable WO3/MoO3 suspension with a nanoheterojunction structure was obtained after grinding treatment. The ground WO3/MoOx composite film exhibited enhanced electrochromic performance due to its morphology and enhanced electron transfer. A complementary electrochromic device (ECD) using ground WO3/MoOx showed high transmittance modulation, fast switching times, high coloration efficiency, and cycling stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Polymer Science
Baku Nagendra, Paola Rizzo, Christophe Daniel, Lucia Baldino, Gaetano Guerra
Summary: This study achieves perpendicular orientation of PLLA films through low-temperature sorption of molecules suitable as guests of PLLA co-crystalline forms, demonstrating high transparency.
Article
Materials Science, Multidisciplinary
Sameh M. Elghnam, Youssef H. Abdelalim, Mahmoud A. Hamad
Summary: The effect of weathering exposure on the optical absorption characteristics of LDPE grad-LA071 has been investigated. It has been found that the optical absorption of LDPE grad-LA071 decreases exponentially with wavelength in different durations of time. In addition, the optical absorption increases significantly with exposure time, especially at high frequencies, suggesting that LDPE grad-LA071 is a practical candidate for a selective filter for UV light. Therefore, it can be used as a UV light mask in semiconductor devices and as a protective shield for solar cells. Furthermore, the LDPE grad-LA071 film can be used in packaging to extend the lifespan of various items.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Green & Sustainable Science & Technology
Rached Dhaouadi, Amani Al-Othman, Ahmed A. Aidan, Muhammad Tawalbeh, Rawan Zannerni
Summary: This study investigates the seasonal variability of dust and PV soiling losses over four months at a soiling station in the American University of Sharjah, UAE. Results indicate that the dust particles are rich in carbon, oxygen, calcium, and silicon, with a 30% decrease in transmittance after 15 weeks of soiling.
Article
Chemistry, Physical
Likun Wang, Yong Liu, Gaorong Han, Hongli Zhao
Summary: Hexagonal WO3 nanorod-cluster films were successfully synthesized with excellent electrochromic performance, including high optical modulation, fast switching speed, high coloration efficiency, and outstanding cycling stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Spectroscopy
Yinan Xue, Jintao Tian, Weiguo Tian, Kai Zhang, Junji Xuan, Xinghua Zhang
Summary: Spiropyran compounds are important photochromic molecules used as detectors and fluorescence probes in various fields. A spiropyran derivative with a hydroxyl group was used in this study to recognize different types of amines based on their UV-Vis absorption spectra. Chemical reactions between primary amines and SPOH, as well as alkalinity, were identified as vital interaction mechanisms for the recognition process.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Physical
V. O. Smilyk, S. S. Fomanyuk, I. A. Rusetskyi, M. O. Danilov, G. Ya Kolbasov
Summary: This paper presents a comparative analysis of the electrochromic properties of nonstoichiometric hydrated films CuWO3.7 center dot 2H(2)O, WO2.5 center dot 2H(2)O, and alpha-WO2.9 center dot H2O obtained by combined electrochemical and chemical methods. The results indicate that the chemical composition, stoichiometry, and film structure based on W oxide compounds have an impact on the electrochromic process, with CuWO3.7 center dot 2H(2)O primarily using localized states for coloration. The presence of copper oxide compounds reduces the coloration rate and efficiency of CuWO3.7 center dot 2H(2)O compared to WO2.5 center dot 2H(2)O and alpha-WO2.9 center dot H2O.
Article
Optics
G. V. Ashok Reddy, Habibuddin Shaik, K. Naveen Kumar, V. Madhavi, Hitha D. Shetty, Sheik Abdul Sattar, Merum Dhananjaya, B. Daruka Prasad, G. Ranjith Kumar, B. H. Doreswamy
Summary: This study presents the fabrication of TiO2 nanorods/WO3 hybrid thin films and investigates their electrochromic behavior. WO3 thin films were deposited at a constant temperature with varying oxygen partial pressures, while tungsten nanorods were grown on FTO coated glass substrates using a hydrothermal process. The optimized WO3 films were then coated on the TiO2 nanorod film. Material, optical, electrical, and electro-chemical analysis were conducted on the films. The enhanced coloration efficiency of the optimized WO3 films was attributed to their large active surface area, which facilitated H+ ions intercalation. The TiO2 nanorods/WO3 hybrid films exhibited good electrochemical properties, including a diffusion coefficient of 1.8 x 10-7 cm2/s, better than pure WO3 and TiO2 nanorods.
Article
Nanoscience & Nanotechnology
Guanguang Zhang, Kaiyue Guo, Xingxing Shen, Honglong Ning, Hongfu Liang, Jinyao Zhong, Wei Xu, Biao Tang, Rihui Yao, Junbiao Peng
Summary: In this study, an electrochromic physical simulation model of WO3 films was established to investigate the electrochromic mechanism. Through experimental and theoretical analysis, continuous electron-transfer process and Li+-ion diffusion process in WO3 were revealed. The model successfully validated experimental data and provided an accurate description of the electrochromic process.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Energy & Fuels
Roshan Raman, Naveen Kumar
Summary: This study investigates the effect of induction length on acetylene fueled CI engine. The results show that the optimum length for acetylene induction is 50 cm, which provides better performance in terms of load, combustion efficiency, and exhaust emissions.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Green & Sustainable Science & Technology
Ankit Sonthalia, Naveen Kumar, Mukul Tomar, Varuvel Edwin Geo, Subramanian Thiyagarajan, Arivalagan Pugazhendhi
Summary: Energy is crucial for the economic development of any country, but developing countries often rely on imported oil. However, the fluctuating oil prices and environmental concerns associated with fossil fuels are major issues. To address these problems, developing countries have started investing in solar and wind power, and are exploring hydrogen and methanol as future energy resources.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Materials Science, Multidisciplinary
Prateek Kumar, Maneesha Gupta, Kunwar Singh, Naveen Kumar
Summary: This study analyzes an AND gate based on a single transistor and designs the gate circuit using split-gate metal oxide semiconductor field-effect transistors. The research shows that proper conduction does not take place when one of the gates is in an OFF state.
TRANSACTIONS ON ELECTRICAL AND ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Debobroto Sensharma, Daniel J. O'Hearn, Amin Koochaki, Andrey A. Bezrukov, Naveen Kumar, Benjamin H. Wilson, Matthias Vandichel, Michael J. Zaworotko
Summary: Hybrid ultramicroporous materials (HUMs) are modular materials composed of metal cations and combinations of inorganic and organic ligands, making them suitable for crystal engineering studies. They have practical significance due to their excellent gas separation performance in industrial gas mixtures. This study reports the design and synthesis of a sulfate-linked HUM and sets a benchmark for the difference in sorption heats between C2H2 and CO2 at low loadings.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Psychiatry
Prakyath R. Hegde, Guru S. Gowda, Bhavika Vajawat, Vinay Basavaraju, Sydney Moirangthem, Channaveerachari Naveen Kumar, Suresh Bada Math
Summary: This study examined medication delivery practices adopted by caregivers for patients with severe mental illness (SMI) in India. Covert administration of medication (CoAdM) was found to be a common practice, with 32.0% of SMI patients having received CoAdM at some point. Other strategies used by caregivers included pleading, lying, and threatening. Male gender, absent insight, and poor medication adherence were significantly associated with CoAdM in the past year. Caregivers perceived significant improvements in various aspects of patients' lives after CoAdM, including self-care, interpersonal relationships, work, family functioning, problem behaviors, and dependency.
INTERNATIONAL JOURNAL OF SOCIAL PSYCHIATRY
(2023)
Article
Green & Sustainable Science & Technology
Rashi Koul, Naveen Kumar, Ramesh Chandra Singh
Summary: This paper analyzes the physiochemical properties of renewable diesel, biodiesel, and blends of diesel and renewable diesel. The study finds that up to 30% renewable diesel can be used as a substitute fuel due to its similar properties to diesel.
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2022)
Article
Engineering, Electrical & Electronic
Rakshita Dhar, Naveen Kumar, Cesar Pascual Garcia, Vihar Georgiev
Summary: This paper implements technology computer-aided design (TCAD) simulations of ion-sensitive field-effect transistors (ISFETs) using a physical model interface (PMI), and analyzes the correlation between device dimensions and sensitivity.
SOLID-STATE ELECTRONICS
(2022)
Article
Psychology
S. Visalakshi, V Prateek, S. Kamaldeep, Patley Rahul, Sharad Philip, B. Vinay, N. Manjunatha, C. K. Naveen, Suresh Bada Math
INDIAN JOURNAL OF PSYCHOLOGICAL MEDICINE
(2023)
Article
Health Policy & Services
P. Lakshmi Nirisha, Barikar C. Malathesh, Nithesh Kulal, Nisha R. Harshithaa, Ferose Azeez Ibrahim, Satish Suhas, N. Manjunatha, Channaveerachari Naveen Kumar, Rajani Parthasarathy, Adarsha Alur Manjappa, Jagadisha Thirthalli, Prabhat Kumar Chand, Sanjeev Arora, Suresh Bada Math
Summary: Mental health task shifting is a potential way to address the treatment gap for mental illness. In this study, the impact of hybrid training of grassroot level health workers was evaluated. The results showed that mentoring ASHAs through online sessions had a more positive effect on their knowledge, attitude, and practices in mental health compared to traditional one-day training.
COMMUNITY MENTAL HEALTH JOURNAL
(2023)
Article
Psychology
Manjunatha B. Kondapura, Narayana Manjunatha, Anil Kumar Mysore Nagaraj, Samir Kumar Praharaj, Channaveeraachari Naveen Kumar, Suresh Bada Math, Girish N. Rao
Summary: This study examined the cost of illness and disability of patients with common mental disorders in India. The findings indicate that these disorders result in a significant financial burden, predominantly due to indirect costs, and are associated with a mild level of disability.
INDIAN JOURNAL OF PSYCHOLOGICAL MEDICINE
(2023)
Review
Psychology
Bhavika Vajawat, Channaveerachari Naveen Kumar, Prakyath Hegde, Sydney Moirangthem, Vinay Basavaraju, Vasuki Prathyusha, Binukumar Bhaskarapillai, Suresh Bada Math, Pratima Murthy
Summary: The relationship between imprisonment and mental illness is bidirectional. A study conducted on male inpatients under judicial custody with charges of homicide found that the clinical outcomes of prisoners with mental illness seem promising, subject to the seamless availability of services.
INDIAN JOURNAL OF PSYCHOLOGICAL MEDICINE
(2023)
Article
Psychology
Swati Ravindran, Prabhu Jadhav, Sharad Philip, Chethan Basavarajappa, Channaveerachari Naveen Kumar, Jagadisha Thirthalli, Thanapal Sivakumar
Summary: This study analyzed the assessment of disability due to mental illness in India and found that it is feasible for India to shift from using IDEAS to WHODAS. After removing the influence of duration, both hospital and community-based samples show a cutoff score of 24.
INDIAN JOURNAL OF PSYCHOLOGICAL MEDICINE
(2023)
Review
Chemistry, Analytical
Paulo E. S. Munekata, Sarah Finardi, Carolina Krebs de Souza, Caroline Meinert, Mirian Pateiro, Tuany Gabriela Hoffmann, Ruben Dominguez, Savio Leandro Bertoli, Manoj Kumar, Jose M. Lorenzo
Summary: The quality and shelf life of meat and meat products are usually evaluated using complex protocols and sensory methods. The development of electronic systems like E-nose, E-eye, and E-tongue has provided faster, portable, and cost-effective methods for measuring characteristics of meat and meat products. These electronic systems have been used to differentiate preservation methods, detect adulteration, monitor processing conditions, and evaluate shelf life. E-nose is the most versatile technology, while E-tongue and E-eye have specific applications in determining adulteration and evaluating color and marbling levels, respectively.
Article
Agronomy
Tamilselvan Ilakiya, Ramakrishnan Swarnapriya, Lakshmanan Pugalendhi, Vellingiri Geethalakshmi, Arunachalam Lakshmanan, Manoj Kumar, Jose M. Lorenzo
Summary: This research assessed the impact of intercropping short duration vegetables in elephant foot yam, and found that cluster beans outperformed other intercrops in improving soil fertility, organic carbon accumulation, and microbial activity.
Article
Psychiatry
Chethan Basavarajappa, Sandeep Grover, Pronob K. Dalal, Ajit Avasthi, Channaveerachari Naveen Kumar, Narayana Manjunatha, Aseem Mehra, Gautam Saha, Swapnajeet Sahoo, Om Prakash Singh, Adarsh Tripathi, Bangalore N. Gangadhar, Suresh Bada Math
Summary: This online survey reveals that psychiatrists in India are widely adopting telemedicine technology, finding it satisfactory for providing remote consultations and prescriptions.
INDIAN JOURNAL OF PSYCHIATRY
(2022)
Article
Materials Science, Multidisciplinary
Yanbin Wang, Xinyou Huang, Ziqiu Cheng, Penghui Chen, Yuyang Chen, Junhao Ye, Haohong Chen, Zhenzhen Zhou, Denis Yu Kosyanov, Jiang Li
Summary: Uniform Al2O3-Ce:LuAG composite phosphor ceramics (CPCs) with excellent luminescent properties and thermal stability have been successfully synthesized in this study, showing great potential for application in solid-state laser lighting.
Article
Materials Science, Multidisciplinary
Syed Muhammad Ali Zaidi, Mazhar Ali Kalyar, Zulfiqar Ali Raza, Aayesha Shoukat, Rubaila Waseem, Muhammad Aslam
Summary: Polyvinyl alcohol (PVA) nanocomposite strips embedded with graphene nanosheets and copper-ferrite nanoparticles were synthesized using solution casting technique. Laser pulse irradiations were then applied to modify the structural, optical, and electrical properties of the strips, showing potential for optoelectronic devices.
Article
Materials Science, Multidisciplinary
Yunru Chen, Jialing Wu, Jiajia Wang, Shihui Ma, Hongwei Yu
Summary: This paper investigates the angular non-critical phase-matching second-harmonic-generation properties of Ba3(ZnB5O10)PO4 crystal and explores its potential applications in the output spectral regions.
Article
Materials Science, Multidisciplinary
Qun Jing, Menglin Zhu, Lu Li, Xu Ji, Haiming Duan, Henglei Chen, Ming-Hsien Lee
Summary: The paper introduces two new nonlinear optical materials, MZnPO4 (M = Rb, Cs), synthesized by cation substitution. These materials exhibit a honeycomb-like structure and show mild SHG responses with short absorption edges. The thermal properties, IR spectra, and theoretical calculations of the materials are also discussed.
Article
Materials Science, Multidisciplinary
Camila Ianhez-Pereira, Akhil Kuriakose, Ariano De Giovanni Rodrigues, Ana Luiza Costa Silva, Ottavia Jedrkiewicz, Monica Bollani, Marcio Peron Franco de Godoy
Summary: This study aims to evaluate the crystalline changes induced by ultrafast laser micromachining on manganese oxide thin films using micro-Raman spectroscopy. The results show that laser-writing is effective in locally modifying low-crystallinity films and increasing crystallite sizes, highlighting an interesting approach to evaluate laser-induced structural modifications on metal oxide thin films.
Article
Materials Science, Multidisciplinary
Kamal Bansal, Neeraj Kumar Mishra, Ibrahim Abdullahi, Param Jeet Singh, Mohit Tyagi, Sukhpal Singh
Summary: A novel Sm3+ activated oxyfluoride glass was synthesized and its structure and properties were analyzed. The glass showed potential applications in lasers, optical temperature sensing, and high-energy scintillators.
Article
Materials Science, Multidisciplinary
Xingjian Wang, Zhixu Wu, Jiawei Zhu, Yubin Kang, Mengqiang Cai, Yong Xia, Hui Deng
Summary: Antimony sulfide (Sb2S3) has been investigated as a promising material for visible light photodetectors due to its non-toxicity, stability, and high absorption coefficient. In this study, we systematically explored the impact of key parameters on the performance of Sb2S3 devices using simulation and successfully fabricated self-powered photodetectors with high responsivity and specific detectivity. Furthermore, we demonstrated the application of the Sb2S3 detector in a scanning imaging system, showcasing its potential for developing new types of visible light detectors and imaging systems.
Article
Materials Science, Multidisciplinary
O. I. Sallam, R. M. Ahmed
Summary: The 20NaF-60P2O5-20Na2O fluorophosphate glass systems doped with 3 wt% of CoO and NiO were investigated for their optical parameters before and after gamma irradiation. The presence of defects within the glass network and the addition of transition metals were found to affect the properties of the composites. After irradiation, a red shift was observed in the dissipation factor spectrum. The energy lost at the surface of the composites was larger than the energy lost within the constituent materials. All investigated composites showed insulating behavior and exhibited increased nonlinear optical parameters after irradiation, with the CoO-doped composite showing the highest values.
Article
Materials Science, Multidisciplinary
Fahimeh Ahmadi, Zeinab Ebrahimpour, Asghar Asgari, Bao Van
Summary: In this study, Er3+-doped sulfophosphate glasses containing titanium nanoparticles (TiO2 NPs) and different concentrations of silver nanoparticles (AgNPs) were synthesized. The impact of AgNPs on the physical and structural characteristics, optical absorption and emission features, and photocatalytic activity of the glasses were investigated. The results showed that the addition of AgNPs enhanced the emission intensity of the glasses, with the system containing 0.04 mol% of AgNPs exhibiting optimal performance. Furthermore, the presence of AgNPs and TiO2 NPs in the glass matrix positively affected the photocatalytic performance.
Article
Materials Science, Multidisciplinary
Zhuang Li, Rongfei Huang, Wei Yuan, Shaoqiang Zheng, Wenlu Liao, Huiying Xu, Zhiping Cai
Summary: This study reports the first realization of an 868 nm Pr:YLF laser pumped by an InGaN blue laser diode. The laser achieved a maximum power of 641 mW with stable output and good beam quality. The experimental results were in agreement with theoretical simulations.
Article
Materials Science, Multidisciplinary
Bhishma Karki, Youssef Trabelsi, Amrindra Pal, Sofyan A. Taya, Ram Bharos Yadav
Summary: This study proposes an SF11 Prism- Ag- ZnO nanowires-CeO2-Sensing layer-based surface plasmon resonance sensor for measuring dopamine concentration in human blood. The sensor demonstrates high sensitivity and detection accuracy, and holds significant importance for early diagnosis of neurological diseases.
Article
Materials Science, Multidisciplinary
M. Taoufiq, A. Soussi, A. Elfanaoui, A. Ait Hssi, S. Baoubih, A. Ihlal, K. Bouabid
Summary: In this study, the effect of copper doping within ZnS on glass substrates was investigated through experimental and theoretical approaches. Pure ZnS and Cu-doped ZnS films with varying copper concentrations were deposited on glass substrates using the SILAR technique. The structural, morphological, and optical properties of the films were characterized, and the theoretical FP-LAPW method based on density functional theory was employed to study the properties of copper-doped ZnS.