Article
Chemistry, Multidisciplinary
Boutheina Ben Abdelaziz, Nazir Mustapha, Idriss M. Bedja, Osamah Aldaghri, Hajo Idriss, Moez Ibrahem, Khalid H. Ibnaouf
Summary: This study examines the impact of zinc oxide nanoparticles (ZnO NPs) on the spectrum features of MDMO-PPV. Different techniques were used to assess the characteristics of MDMO-PPV and doped ZnO NP samples. The addition of ZnO NPs resulted in significant changes in the UV-Vis and PL spectra, including shifts in absorption bands and improvements in spectral profiles.
Article
Materials Science, Multidisciplinary
Sonu Kaliramna, Sardul Singh Dhayal, Narendra Kumar
Summary: The structural properties and optical properties of ZnO/PMMA thin film are studied in this research. The results show that the ZnO nanoparticles are uniformly deposited in the PMMA matrix, and the optical band gap of ZnO/PMMA thin film decreases. The ZnO doped PMMA thin film exhibits excellent photocatalytic and antibacterial activities.
Article
Nanoscience & Nanotechnology
Yuan Zhang, Jia-Jia Tao, Hong-Yan Chen, Hong-Liang Lu
Summary: The research focuses on the growth of hetero-epitaxial ZnO-AlN core-shell nanowires and single crystalline AlN films on non-polar ZnO substrates at a low temperature using atomic layer deposition. It was found that the AlN shells exhibit excellent single-crystal properties and there exists a specific epitaxial relationship between the ZnO core and the AlN shell during the growth process.
Article
Chemistry, Physical
N. H. Erdogan, T. Kutlu, N. Sedefoglu, H. Kavak
Summary: Undoped ZnO films and Na-doped ZnO films with different Na/Zn molar ratios were deposited on glass substrates by the sol-gel spin coating method. Sodium doping significantly influenced the structure and properties of the films, resulting in different electrical conductivity and optical characteristics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Manohar Singh, Anit Kumar Ambedkar, Shrestha Tyagi, Ashwani Kumar, Arun Kumar, Yogendra K. Gautam, Kavita Sharma, Beer Pal Singh
Summary: Researchers have demonstrated a high-response/recovery and self-powered visible-light photodetector made of undoped ZnO (UZO) and Cu-doped ZnO (CZO) thin films on a cost-effective Si substrate using reactive cosputtering. The CZO/n-Si photodetector showed higher on/off ratio, responsivity, and detectivity compared to the UZO/n-Si photodetector. The prepared CZO/n-Si/Ag thin film-based visible-light photodetector shows potential for high-performance designs.
Article
Materials Science, Multidisciplinary
O. Oberemok, V. Kladko, V. Melnik, O. Dubikovskyi, O. Kosulya, O. Gudymenko, B. Romanyuk, Z. Maksimenko, T. Sabov, O. Kolomys
Summary: This work investigates the impact of annealing temperature on the structural and optical properties of ZnO films implanted with Ho+ and Nd+ ions. Highly oriented nanorods arrays of ZnO films were synthesized on silicon substrates using RF magnetron sputtering. Ion implantation enhanced the crystallinity of the films. The temperature-induced changes in lattice parameters and sizes of ZnO nanocrystals in nanorods were observed. Threshold temperatures for bulk crystallization and the photoluminescent properties of nanorods were identified. The study reveals that the implanted elements are distributed uniformly throughout the film thickness and accumulate at the SiOx/Si interface during high-temperature annealing.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Oleg Lupan, Nicolae Magariu, Rasoul Khaledialidusti, Abhishek Kumar Mishra, Sandra Hansen, Helge Krueger, Vasile Postica, Helge Heinrich, Bruno Viana, Luis Katsuya Ono, Beatriz Roldan Cuenya, Lee Chow, Rainer Adelung, Thierry Pauporte
Summary: A comparative investigation was conducted on the influence of post-electroplating treatments on the gas detecting performances of single ZnO nanorods/nanowires. Different treatments were found to enhance material properties, with higher temperature synthesis resulting in increased gas response to H-2 gas. Thermal annealing and hydrothermal treatment were shown to further increase sensor response, indicating potential for high-performance devices in flexible and wearable electronics.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Himadri Sekhar Das, Rajesh Das, Prasanta Kumar Nandi, Sajal Biring, Subir Kumar Maity
Summary: The study demonstrates that Ga-doped ZnO thin films can serve as a promising alternative anode material in OLEDs, replacing ITO and SnO2:F films. Experimental results show that ZnO:Ga films exhibit excellent performance in terms of transparency and electrical properties, suitable for OLEDs and other optoelectronic devices.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Optics
Mohit Podia, Awnish Kumar Tripathi
Summary: Single, double, and triple-coated undoped ZnO thin films were prepared using sol-gel spin coating technique on quartz substrate. The films had hexagonal wurtzite structures and wrinkles-like morphology. Optical band-gap was almost identical for all three films. Room temperature Photoluminescence (PL) spectra showed decreased visible PL intensity with increasing excitation wavelengths, followed by the emergence of a sharp NBE-like UV peak.
JOURNAL OF LUMINESCENCE
(2022)
Article
Optics
Manohar Singh, Anit K. Ambedkar, Shrestha Tyagi, Virendra Kumar, Prashant Yadav, Ashwani Kumar, Yogendra K. Gautam, Beer Pal Singh
Summary: In this study, pure ZnO and Cu-doped ZnO thin films were deposited on a glass substrate using reactive co-sputtering. The structural, morphological, and optical properties of the thin films were characterized. The results showed that Cu doping modified the crystal structure, surface morphology, and optical properties of ZnO thin films. These findings are important for the research and applications of Cu-doped ZnO thin films.
Article
Engineering, Electrical & Electronic
C. Aparna, Pramoda Kumara Shetty, M. G. Mahesha
Summary: Structural optimization of Indium oxide (INO) thin films for gamma sensing applications was carried out by varying deposition parameters. The study revealed that the structural and morphological properties of the films can be controlled by adjusting substrate temperature and precursor solution concentration. The films exhibited good conductivity and high transmittance, making them suitable for dosimetry applications.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Biochemistry & Molecular Biology
Tereza Capkova, Barbora Hanulikova, Jakub Sevcik, Pavel Urbanek, Jan Antos, Michal Urbanek, Ivo Kuritka
Summary: This study investigates the application of new anti-octadecaborane(22) laser dyes in solid thin films. The results show that borane clusters are not firmly fixed within polymer matrices and can easily diffuse out of the film at higher temperatures. Spectroscopic analysis reveals that the structure and molecular weight of the polymer, as well as the concentration and type of clusters, significantly affect the mobility of borane clusters within the polymer matrix.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Nizar Ben Moussa, Mohamed Lajnef, Nessrine Jebari, Cedric Villebasse, Fabien Bayle, Julien Chaste, Ali Madouri, Radouane Chtourou, Etienne Herth
Summary: In this study, low-cost sol-gel spin-coating technique was used to synthesize eco-friendly ZnO multilayer films with excellent optical properties and specific orientation suitable for piezoelectric applications. The ZnO sol-gel thin-films using precursor solutions of molarity 0.75 M exhibited an average optical transparency above 98% and an optical band gap energy of 3.42 eV, showing potential for eco-friendly and cost-effective applications in complementary metal-oxide-semiconductor (CMOS) and integrated circuits (IC).
Article
Chemistry, Physical
Nisrin Alnaim, Shalendra Kumar, Adil Alshoaibi
Summary: ZnO nanostructures were synthesized and characterized in terms of their structural, electronic, morphological, optical, and magnetic properties. The presence of intrinsic defects was found to significantly influence the optical and magnetic properties of ZnO, especially in the case of Ar-ZnO.
Article
Chemistry, Applied
L. Suganya, K. S. Balamurugan, A. Sivakami, P. Sakthivel, Nidhi Asthana, B. Sundaresan
Summary: In this study, Ni-doped ZnO thin films were prepared using sol-gel spin coating method with different concentrations of nickel. The structural, optical, and magnetic properties were characterized by XRD, UV, Photoluminescence, XPS, and VSM techniques. The results showed successful nickel doping in ZnO thin films, leading to changes in optical properties and exhibiting ferromagnetic behavior. The prepared films have the potential for applications in various fields such as transparent conducting electrodes and spintronics devices.
TOPICS IN CATALYSIS
(2023)
Article
Chemistry, Inorganic & Nuclear
Bita Ghasemi, Fatemeh Hajakbari, Alireza Hojabri
INORGANIC AND NANO-METAL CHEMISTRY
(2020)
Article
Materials Science, Multidisciplinary
Farzane Eskandari, Pejman Shabani, Ramin Yousefi
ORGANIC ELECTRONICS
(2020)
Article
Engineering, Chemical
M. R. Mahmoudian, Y. Alias, Pei Meng Woi, R. Yousefi, W. J. Basirun
ADVANCED POWDER TECHNOLOGY
(2020)
Article
Chemistry, Physical
Morteza Nouri, Nasser Zare-Dehnavi, Farid Jamali-Sheini, Ramin Yousefi
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2020)
Article
Engineering, Chemical
Elham Kharatzadeh, Seyedeh Raziyeh Masharian, Ramin Yousefi
Summary: The effects of S-doped graphene oxide on the photocatalytic performance of SnSe nanostructures were investigated, revealing improved catalytic activity, morphology changes, and enhanced conductivity with sulfur doping.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Farzane Eskandari, Pejman Shabani, Ramin Yousefi
Summary: By fabricating single-layered memristors with a simple structure based on polyaniline and investigating the effect of different concentrations of silver, a new mechanism and characteristics of the memristors were discovered. The presence of silver not only affected the switching mechanism, but also influenced the current-voltage characteristics of the memristors. The memristors exhibited stable retention time and endurance characteristics even with the presence of silver.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Elham Kharatzadeh, Seyedeh Raziyeh Masharian, Ramin Yousefi
Summary: The comparative study showed that SnSe/S-GO nanocomposites exhibited faster visible-light photocatalytic activity compared to S-SnSe/GO nanocomposites. The lower degree of oxidation on the surface of S-GO sheets led to the longer photogenerated electron lifetime in the SnSe/S-GO nanocomposites.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Materials Science, Ceramics
Maryam Zebarjad, Farid Jamali-Sheini, Ramin Yousefi
Summary: In this study, FeS2 nanostructure films were prepared by electrochemical deposition on FTO glass substrate, and the effect of deposition parameters on the physical properties of the films was investigated. The increase in sulfurization temperature led to higher light absorption intensity and energy band gap, with the sample sulfurized at 250 degrees Celsius showing remarkable photoresponsivity in the visible spectrum.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Seyedeh Laleh Mousavi, Farid Jamali-Sheini, Mohammad Sabaeian, Ramin Yousefi
Summary: In this study, un- and copper-doped tin sulfide nanoparticles were synthesized and added to polymer solar cells. The structural, optical, and electrical properties of the nanoparticles on cell performance were investigated. Results showed that adding SnS nanoparticles improved the performance of the cells.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Inorganic & Nuclear
Maryam Zebarjad, Farid Jamali-Sheini, Ramin Yousefi
Summary: The nanostructured iron pyrite films were deposited on FTO substrate by electrodeposition method, exhibiting cubic pyrite formation. The morphology of Sn-doped specimens remained unchanged at low Sn concentrations but changed at high concentrations. Photoluminescence spectra showed emission bands in the green and red regions, with an energy band gap of -1.63 eV. Optoelectronic measurements indicated p-type conductivity in the films, with photodetectors showing a significant response in the form of increased spectral range of visible light with minimum Sn concentration doping.
SOLID STATE SCIENCES
(2021)
Article
Chemistry, Physical
Mohammad Gharibshahi, Farid Jamali-Sheini, Ramin Yousefi
Summary: In this study, SnSe nanorods were prepared using ultrasound irradiation and the effect of irradiation time on the physical properties of these nanostructures was investigated. Results showed that ultrasound irradiation led to a decrease in crystallite size, a shift in absorption spectra towards higher wavelengths, and changes in carrier concentration and electrical properties.
SURFACES AND INTERFACES
(2021)
Article
Engineering, Chemical
Mohammad Gharibshahi, Farid Jamali-Sheini, Ramin Yousefi
Summary: In this study, SnSe nanostructures prepared by the precipitation method were exposed to the irradiation of ultrasound waves and ultraviolet (UV) rays. The results showed that the irradiation affected the structural properties, emission bands, absorption spectra, energy band gap, responsivity, sensitivity, detectivity, mobility, and carrier concentration of the SnSe nanostructures.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Chemistry, Physical
Elham Kharatzadeh, Marzieh Khademalrasool, Ramin Yousefi
Summary: This paper synthesized pristine SnSe and SnSe1 _ xSx nanostructures with different sulfur concentrations using a simple and environmentally-friendly co-precipitation method, and investigated the effect of sulfur concentration on the photovoltaic and photocatalytic properties of the nanostructures. The results show that sulfur concentration affects the crystallite size and strain of the nanostructures. Among the nanostructures, S(6%)-doped SnSe nanostructure exhibits significant photocatalytic activity in organic dye degradation and significant photovoltaic response under visible light. These results can be attributed to the reduction of crystal defects, electron-hole recombination, and the improvement of textural characteristics in the nanostructures.
SURFACES AND INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Morteza Nouri, Hassanali Azimi, Abdolali Moghaddam Saray, Ramin Yousefi
Summary: The effects of S-doped g-C3N4 on the photocatalytic activity of CuxSey nanostructures were investigated. CuxSey/S-CN nanocomposites showed the highest performance in degrading methylene blue dye under visible light, with over 80% degradation in just 30 minutes. Factors such as higher carrier, greater porosity, and formation of a Z-scheme contributed to the enhanced performance of CuxSey/S-CN nanocomposites compared to CuxSey/g-CN nanocomposites. Mott-Schottky and PL results confirmed the formation of type-II and Z-scheme heterostructures, respectively.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Physical
Abdolali Moghaddam Saray, Hassanali Azimi, Abbas Shirmardi, Morteza Nouri, Ramin Yousefi
Summary: A dual S-scheme structure is proposed for copper selenide/Ag-polyaniline nanocomposites to achieve photocatalytic degradation of dye pollutants under visible light. The plasmonic properties of Ag nanoparticles play a critical role in the enhanced photocatalytic performance of the nanocomposites by forming a dual S-scheme structure.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)
