Article
Chemistry, Multidisciplinary
Aileen Segura, Araceli Rodriguez, Pedro Hernandez, Hector Pesenti, Jacobo Hernandez-Montelongo, Antonio Arranz, Noelia Benito, Jose Bitencourt, Luis Vergara-Gonzalez, Ivan Nancucheo, Gonzalo Recio-Sanchez
Summary: The use of sulfidogenic bioreactors is a biotechnology trend for recovering valuable metals from mine-impacted waters. In this study, ZnS nanoparticles were produced using green H2S gas generated by a sulfidogenic bioreactor. The nanoparticles exhibited a spherical-like shape and had a principal zinc-blende crystalline structure, semiconductor character, and fluorescence emission in the UV-visible range. In addition, the nanoparticles showed photocatalytic activity in degrading organic dyes and antibacterial properties against various bacterial strains.
Article
Materials Science, Multidisciplinary
Santosh K. Gupta, Hisham Abdou, Yuanbing Mao
Summary: In this paper, the effect of high pressure on the optical properties of pyrochlore GHOE nanoparticles was studied. The results showed that high pressure led to increased defect density, reduced Eu-O covalency, and color tunability.
Article
Engineering, Environmental
Jonnalagadda Madhavi, V. Prasad, Kakarla Raghava Reddy, Ch. Venkata Reddy, Anjanapura Raghu
Summary: This study successfully synthesized a Ni-doped ZnS-CdS hybrid composite and investigated its structural, morphological, optical, and magnetic properties using various analytical techniques, confirming its green light emission and room temperature ferromagnetism.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Physics, Condensed Matter
L. Tairi, Y. Messai, R. Bourzami, A. Chetoui, M. Sebais, T. Tahraoui, T. Bouarroudj, H. Bezzi, D. E. Mekki
Summary: In this study, a surfactant-free hydrothermal technique was used to synthesize calcium incorporated zinc sulfide nanoparticles. The structural, morphological, optical and microstructural properties of the nanoparticles were investigated using various techniques. The results showed that the addition of calcium preserved the cubic phase and reduced the crystallite size. The calcium incorporation also resulted in the formation of well-shaped spherical particles with even distribution. Furthermore, the photoluminescence emission bands of the calcium incorporated zinc sulfide nanoparticles exhibited a blue-shift and broader width compared to pristine zinc sulfide, and the photocatalytic activity was enhanced.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Chemistry, Inorganic & Nuclear
B. Lalitha Devi, K. Mohan Rao, D. Ramananda
Summary: This study reports the synthesis of ZnS nanoparticles through chemical precipitation and the modulation of their microstructure and optical properties using microwave irradiation. The results demonstrate that the irradiation time significantly affects the size and crystal properties of the nanoparticles.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Optics
Abdelghafour Said Messalti, Malika El-Ghozzi, Daniel Zambon, Rachid Mahiou, Zouaoui Setifi
Summary: This study reports the structural, morphological, and optical properties of pure and Ca-doped zinc sulfide nanoparticles prepared by a hydrothermal method at different levels of Ca. Characterization techniques such as XRD, Raman scattering, SEM, TEM, and PL spectroscopy were used to analyze the resulting nanoparticles. The findings indicate that Ca doping influences the structure and photoluminescence properties of the ZnS nanoparticles.
JOURNAL OF LUMINESCENCE
(2021)
Article
Chemistry, Multidisciplinary
Romina Alarcon, Mariana Walter, Maritza Paez, Manuel Ignacio Azocar
Summary: In this study, the stability and antibacterial activity of silver nanoparticles (AgNPs) coated with different stabilizers were investigated. The AgNPs showed differences in stability and size change depending on the coating agent used. The stabilizer may function as a growth controller of the nanoparticles, affecting their biological properties. The protective or stabilizing agents also played a role in the antibacterial capacity and stability of AgNPs over time.
Article
Biochemistry & Molecular Biology
Russul M. M. Adnan, Malak Mezher, Alaa M. M. Abdallah, Ramadan Awad, Mahmoud I. I. Khalil
Summary: This study aimed to investigate the effect of Mg doping on the characteristics and antibacterial properties of CuO nanoparticles (NPs). Mg-doped CuO NPs were fabricated by co-precipitation, and characterization techniques including XRD, TEM, EDX, FTIR, and PL were used. The results showed that Mg doping affected the morphology and agglomeration of the NPs, and induced shifts in the Cu-O bond. The undoped and Mg-doped CuO NPs exhibited significant antibacterial capacities against both Gram-positive and Gram-negative bacteria, highlighting their potential as antibacterial agents.
Article
Biochemistry & Molecular Biology
Jogy Alex, Thomas V. Mathew
Summary: Bismuth oxide nanoparticles (Bi2O3 NPs), modified using functionalized beta-Cyclodextrin (beta-CD) as a biocompatible system, have interesting properties that can be applied in various applications. The synthesis of Bi2O3 NPs was achieved using poly vinyl alcohol (PVA) as a reductant, and the beta-CD was functionalized with biotin through the Steglich esterification procedure. The modified Bi2O3 NP system was characterized using various techniques, and its antibacterial and anticancer effects were also investigated.
Article
Materials Science, Ceramics
Tariq Jan, Sohail Azmat, Altaf Ur Rahman, S. Z. Ilyas, Arshad Mehmood
Summary: This study investigates the effects of Al doping on the crystal structure, electronic band structure, and photoluminescence properties of chemically synthesized ZnO nanoparticles. The experimental findings suggest that Al ions are successfully doped into ZnO host matrix, resulting in the tuning of optical band gap and photoluminescence properties. Computational analysis using first-principle calculations based on density functional theory further supports these experimental results and shows that Al doping enhances the stability and electronic properties of ZnO crystal structures. Additionally, antibacterial tests indicate the enhanced antibacterial activity of Al-doped ZnO nanoparticles.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Inorganic & Nuclear
B. Lalitha Devi, U. Chaitra, Shashikanth Hathwara, Akshayakumar Kompa
Summary: The green chemical route of synthesis and precursor compounds during the synthesis of ZnS nanoparticles have a significant impact on their properties. The synthesis method of green chemical route is proven to be advantageous in imparting novel properties to the NPs. This study involves the synthesis of uncapped and starch capped ZnS NPs using a simple chemical coprecipitation technique. The structural and morphological features of the samples were analyzed using XRD and FESEM, while FTIR confirmed capping by starch. Composition analysis was conducted using EDS, and optical properties were analyzed through UV-absorption spectra and PL measurements. The formation of ZnS NPs with cubic phase and the quantum confinement effect were observed. The intensity of PL decreased with an increase in the capping agent (starch) concentration. These heavy metal-free and non-toxic ZnS nanoparticles are suitable for optoelectronic applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Haobo Yu, Jiani Liu, Xiuyan Li, Yutao Li, Jian Wang, Dandan Wang, Jihui Lang, Jinghai Yang, Huixia Lan
Summary: Ternary composite ZnO/ZnS/ZnSe nanosheets were successfully manufactured by a two-step solvothermal method, showing higher photocatalytic activity and stability in photodegradation of rhodamine B under simulated sunlight illumination.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Natarajan Sisubalan, Chandrasekaran Karthikeyan, Venugopal Senthil Kumar, Kokkarachedu Varaprasad, Abdulrahman Syed Ahamed Haja Hameed, Ramar Vanajothi, Rotimi Sadiku
Summary: This study focused on the development of CeO2-based nanomaterials to combat antibiotic resistance, with BCO showing the highest antibacterial potential. The reduced particle size of BCO facilitated penetration into bacterial membranes, achieving complete inhibition at 1000μg mL(-1) and 1500μg mL(-1) for S. mutans and S. aureus, respectively.
Article
Engineering, Electrical & Electronic
B. Poornaprakash, Peddathimula Puneetha, K. Subramanyam, Min-Woo Kwon, Dong-Yeon Lee, M. Siva Pratap Reddy, Sambasivam Sangaraju, Bandar Ali Al-Asbahi, Y. L. Kim
Summary: In this study, optimally diluted magnetic semiconductors (ZnS, ZnS:Cr, ZnS:Cr + V) were prepared and characterized for spintronic device applications. The results showed that these samples exhibited strong ferromagnetism at room temperature, indicating their potential importance in developing spin-electronic devices.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Optics
Jolly Vakayil Antony, T. K. Bindu Sharmila, Sreesha Sasi, C. S. Julie Chandra, Vidya Raman, P. H. Fathima Fasna
Summary: In this study, a composite material of sulfonated polystyrene and zinc sulfide quantum dot (ZnS QD) was synthesized directly in an aqueous medium. Partially sulfonated polystyrene (PSS) forms PSS-ZnS QD composite by gelatinizing in an aqueous solution of zinc ions and generating ZnS particles. Fully sulfonated polystyrene (SPS) behaves as a polyelectrolyte and stabilizes ZnS particles, forming the SPS-ZnS QD composite. The PSS-ZnS QD composite is water insoluble and exhibits efficient photocatalytic activity, degrading 84% of methylene blue in 6 hours under ultraviolet illumination. The water solubility of SPS-ZnS QD limits its application as a photocatalyst, but few water-soluble polymer composites have been reported in literature.
JOURNAL OF LUMINESCENCE
(2023)
Article
Engineering, Electrical & Electronic
P. H. Amith Nayak, H. S. Bhojya Naik, H. B. Teja, B. R. Kirthan, R. Viswanath
Summary: This study synthesized a mixed ligand nickel complexes as an emissive layer in organic light emitting diode applications, showing good thermal stability and luminescent properties. The fabricated devices emit orange light.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
M. Giridhar, H. S. Bhojya Naik, M. C. Prabhakar, M. Madhukara Naik, N. Ballesh, M. C. Mahesh
Summary: Capped and uncapped zinc sulphide nanoparticles were successfully synthesized from used Zn-C battery, with the dye-capped NPs showing excellent antibacterial properties. The minimum inhibitory concentrations for S. typhi and B. subtilis were found to be 0.156 and 0.625 mg/ml, respectively. Overall, the organic-inorganic hybrid NPs are a promising new class of antibacterial agents.
BULLETIN OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
E. Indrajith Naik, H. S. Bhojya Naik, M. S. Sarvajith, E. Pradeepa
Summary: The article presents a new modified sensor based on a carbon paste electrode using cobalt doped zinc oxide nanoparticles for the simultaneous determination of uric acid and adrenaline with high selectivity and sensitivity. Characterization and optimization were performed to fabricate a sensor with excellent performance towards the oxidation of uric acid. The synthesized sensor is capable of determining both analytes simultaneously with diffusion-controlled electrode processes.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
K. Chetankumar, B. E. Kumara Swamy, H. S. Bhojya Naik
Summary: The MgO-MWCNTs-MCPE was used in this study for the specific and simultaneous investigation of guanine, adenine, and epinephrine. By optimizing specific parameters and employing electrochemical methods, satisfactory results were obtained in terms of sensitivity and selectivity.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
P. H. Amith Nayak, H. S. Bhojya Naik, H. B. Teja, B. R. Kirthan, R. Viswanath
Summary: A Schiff base copper complex for OLEDs application was successfully synthesized and characterized using various techniques. The complex showed promising performance in a green light emitting multi-layered OLED device, demonstrating high brightness and efficiency.
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
(2021)
Article
Chemistry, Multidisciplinary
P. H. Amith Nayak, H. S. Bhojya Naik, R. Viswanath, B. R. Kirthan
Summary: The study developed efficient light-emissive materials for organic light-emitting diodes, with zinc metal complexes showing promising results as emissive layers emitting green and yellowish-orange colors. This research indicates the potential of these zinc complexes as strong electroluminescent materials for opto-electronic applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Analytical
M. Shashank, H. S. Bhojya Naik, Shivaraj B. Patil, R. Viswantha, G. Nagaraju
Summary: MoO3, a promising material for energy storage, faces challenges of poor conductivity and large volume changes. By synthesizing MoO3 nanoparticles with different fuel ratios using tamarind seed powder as a novel fuel, increasing carbon content can improve battery performance. Characterization techniques confirmed the structural purity, morphology, and optical properties of the prepared material.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
G. Vishnu, H. S. Bhojya Naik, R. Viswanath, B. R. Kirthan, P. H. Amith Nayak, Mohammed Abdullah Bajiri
Summary: Magnesium-doped CdFe2O4 nanoparticles were synthesized using a combustion method, and their spectroscopic properties, crystal structure, and antibacterial activity were investigated, showing that magnesium doping can modify the nanoparticles' structure, optical properties, and antibacterial performance.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Pharmacology & Pharmacy
Kambaiah Nagaraj Santhosh, Dattatreya Pavana, Balakrishna Rao Shruthi, Nayaka Boramuthi Thippeswamy
Summary: This study delves into the venom composition and immunogenicity of the Hottentotta rugiscutis scorpion, revealing diverse protein components and potential seasonal variations in the presence of K+ or Na+ channel blockers. The venom also induces a stress-induced innate immune response in mice, leading to a strong humoral immune response.
Article
Biology
Mohammad Afsar, Rohan Narayan, Md Noor Akhtar, Deepakash Das, Huma Rahil, Santhosh Kambaiah Nagaraj, Sandeep M. Eswarappa, Shashank Tripathi, Tanweer Hussain
Summary: In this study, it was discovered that montelukast sodium hydrate has a strong binding affinity to the Nsp1 protein of SARS-CoV-2 and can inhibit the inhibitory effect of Nsp1 on host protein synthesis. Additionally, montelukast sodium hydrate also shows antiviral activity against SARS-CoV-2.
Article
Biochemistry & Molecular Biology
Kambaiah Nagaraj Santhosh, Dhatri Ramesh, Dhanya Ramesh, Urmila Nagaraj, S. Shrinidhi, Nayaka Boramuthi Thippeswamy
Summary: Hottentotta rugiscutis venom acts as an adjuvant for HBsAg, stimulating the immune system and enhancing antigen-specific Th1 immune response. Additionally, the venom improves antibody avidity and neutralizing ability. The venom exerts its effects through a neuroendocrine-immune mechanism, primarily impacting splenocytes via NGF and corticosterone.
MOLECULAR IMMUNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
N. Ranjitha, G. Krishnamurthy, H. S. Bhojya Naik, Malathesh Pari, Lubna Afroz, K. R. Sumadevi, M. N. Manjunatha
Summary: In this study, a new ligand DPD and its Co (II), Ni (II), and Cu (II) complexes were synthesized and their structures were investigated using various analysis methods. The oxidation behavior of the modified electrode was evaluated using cyclic voltammetry, which showed excellent performance. Furthermore, the antibacterial, antioxidant, and cytotoxic activities of the ligand and complexes were studied.
INORGANICA CHIMICA ACTA
(2022)
Article
Chemistry, Physical
Barikara Shivaraj, M. C. Prabhakara, H. S. Bhojya Naik, E. Indrajith Naik, R. Viswanath, M. Shashank
Summary: Chemical co-precipitation method was used to synthesize ZnO and 3 wt% Tb doped ZnO nanoparticles. Optical, photoluminescence, electrochemical-sensing, and antibacterial properties were investigated. The hexagonal wurtzite structure was confirmed by XRD studies, and FTIR showed strong absorption and stretching vibration between the molecules. The morphology of the samples was identified by SEM and TEM micrographs, and EDXA spectroscopy was used for elemental composition analysis. The influence of Tb content on bandgap was analyzed by UV-Vis spectra, and PL study confirmed the existence of defects and band edges. Electrochemical routines and antibacterial activities of Tb-ZnO NPs were also studied.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Chemistry, Inorganic & Nuclear
N. Venkatalakshmi, H. Jyothi Kini, H. S. Bhojya Naik
Summary: In this study, cubic nickel oxide nanoparticles were synthesized using Calotropis gigantea leaf extract as a fuel. The characterization techniques confirmed the formation of crystalline nickel oxide nanoparticles with an average size of 17.06 nm. The nanoparticles exhibited hexagonal shape and agglomeration. Optical studies showed an energy bandgap of 3.04 eV and FTIR analysis confirmed the vibrational stretching mode of Ni-O. The nanoparticles also demonstrated room temperature ferromagnetic property and significant anticancer activity against liver cancer cells. Additionally, the antibacterial assay indicated higher resistance of gram-negative bacteria to antibiotic drugs compared to gram-positive bacteria.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Mohammed Abdullah Bajiri, Abdo Hezam, K. Namratha, Basheer M. Al-Maswari, H. S. BhojyaNaik, K. Byrappa, Nabil Al-Zaqri, Ali Alsalme, Raghad Alasmari
Summary: The study prepared a Cu-doped ZnO/Cu/g-C3N4 heterostructure, effectively enhancing photocatalytic activity, with Cu playing a key role in reducing bandgap, facilitating charge transport, and enhancing catalytic activity. The presence of Cu in different chemical states has been confirmed through various analytical techniques, leading to improved degradation of organic dyes under sunlight irradiation.
NEW JOURNAL OF CHEMISTRY
(2021)
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)
