Article
Materials Science, Multidisciplinary
S. P. Bharath, Kasturi V. Bangera
Summary: Aluminum-doped zinc oxide (AZO) thin films with varying doping concentrations were synthesized using spray pyrolysis technique, showing significant effects on grain size, electrical properties, and gas-sensing characteristics. Various characterization techniques were adopted to study the material formation and performance.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Basavaraj G. Hunashimarad, J. S. Bhat, P. Raghavendra, R. F. Bhajantri
Summary: The photoluminescence properties of spray pyrolyzed strontium (Sr) doped tin oxide (SnO2:Sr) thin films are greatly influenced by Sr doping, leading to a redshift in optical bandgap and an increase in visible emission intensity.
Article
Engineering, Electrical & Electronic
Beyza Tonbul, Hilal Aybike Can, Tayfur Ozturk, Hasan Akyildiz
Summary: The study aimed to tailor the properties of AZO thin films for transparent heater applications, investigating the effects of various parameters on the microstructure, electrical, optical properties, and heating/deicing behaviors of the films. The optimized heater showed good sheet resistance and transmittance, with a maximum achievable surface temperature of 76 degrees C and efficient ice/water removal. The AZO heater exhibited high thermal resistance and stable and reversible heating behavior.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Multidisciplinary
Victor V. Petrov, Irina O. Ignatieva, Maria G. Volkova, Irina A. Gulyaeva, Ilya V. Pankov, Ekaterina M. Bayan
Summary: Transparent Al-doped ZnO films were synthesized by solid-phase pyrolysis and characterized by XRD, SEM, and TEM. The films exhibit wurtzite structure and have a uniform distribution of nanoparticles. The introduction of 1% Al results in a narrowed band gap and improved response time to radiation.
Article
Engineering, Electrical & Electronic
M. Sathya, G. Selvan, K. Kasirajan, S. Usha, P. Baskaran, M. Karunakaran
Summary: This study employed a simple and cost-effective SILAR approach to fabricate ZnO and Zr-doped ZnO thin films. The incorporation of Zr improved the NH3 sensing performance of the films, resulting in excellent gas response and stability.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Nanoscience & Nanotechnology
Camila Ianhez-Pereira, Ariano De Giovanni Rodrigues, Marcio Peron Franco de Godoy
Summary: This study investigated the infrared optical emission of Er3+ doped ZnO hosts, using spray pyrolysis during thin film growth. Different molarity conditions affected the growth of the films and their optical properties. The infrared emissions were influenced by the Stark effect, which was dependent on synthesis parameters.
SCRIPTA MATERIALIA
(2021)
Article
Optics
Bijayalaxmi Sahoo, Siddhartha Kumar Pradhan, Dilip Kumar Mishra, Susanta Kumar Sahoo, Rati Ranjan Nayak, Debadhyan Behera
Summary: This study compared the properties of ZnO thin films with different solvent compositions and codoping concentrations, showing that methanol-water solvent resulted in preferred orientation while de-ionized water solvent led to zincite structure. Changes in film morphology were observed, with unique nanoparticle formations in methanol-water samples. The room temperature photoluminescence emission spectra indicated strong emission at 415 nm with low Fe doping concentration in codoped ZnO samples.
Article
Optics
Ganesha V. S. Krishna, M. G. Mahesha
Summary: The study investigated the effect of manganese doping on zinc sulfide thin films for blue light emitting diodes, revealing enhanced blue emission at 2% manganese concentration. The absence of orange emission related to manganese was noted. Spectroscopic characterization and XPS analysis provided insights into the anomalous behavior of manganese related defects in the films.
JOURNAL OF LUMINESCENCE
(2021)
Article
Physics, Multidisciplinary
Ahmed A. Aboud, M. Al-Dossari, N. S. AbdEL-Gawaad, Ahmed Magdi
Summary: This study investigates the effect of annealing on the physical properties of Co-doped ZnO thin films. The Co doping level is fixed at 10 wt% and the films are deposited using spray pyrolysis techniques. Annealing at different temperatures is conducted and the physical properties are analyzed using various techniques. The results reveal changes in crystallite size, grain formation, band gap value, and plasma frequency, which ultimately affect the performance of the films as UV sensors.
Article
Materials Science, Ceramics
Hoa T. Dao, Hisao Makino
Summary: The effects of substrate temperature on the thermal stability of Al-doped ZnO (AZO) films were studied. It was found that a thin AlOx capping layer can prevent thermal degradation and the reduction in carrier concentration. The correlation between Zn desorption and reduction in carrier concentration was observed, with the AlOx layer successfully preventing thermal desorption of Zn.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Multidisciplinary
Seyyedeh Parisa Abedi, Mohammad Bagher Rahmani, Farkhondeh Rezaii
Summary: In this research, alpha-Fe2O3 (hematite) thin films were deposited on glass substrates at various growth temperatures. The morphological, structural, and optical properties of the samples were characterized. The sensing characteristics of the samples for ethanol were investigated and the growth conditions and sensing parameters of hematite thin films were optimized for ethanol sensing applications.
Article
Materials Science, Multidisciplinary
Radhyah Mahdi Al Jarrah, Eman Muslem Kadhem, Adel H. Omran Alkhayatt
Summary: In this study, nanostructure ZnO thin films were fabricated using the chemical spray pyrolysis method with annealing at different temperatures. The research found that annealed ZnO thin films exhibited improved crystal structure and surface topography, which resulted in increased sensitivity of the gas sensors. The optimal operating temperature for the sensors was determined to be 200 degrees Celsius.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
B. S. Srujana, Adithya Prakash, Saikat Chattopadhyay, M. G. Mahesha
Summary: Zirconium doped zinc oxide thin films were grown using spray pyrolysis technique, and the influence of different concentrations of the dopant on the structural, optical, morphological, and electrical properties of the films was studied. The results showed that the crystallite size varied with dopant concentration, and the ZnO films had a hexagonal wurtzite structure regardless of doping doses. The highest transmittance was observed in 4% Zr doped ZnO films, and scanning electron microscopy revealed particle agglomeration at higher dopant concentrations. Electrical studies showed that the doped samples had lower resistivity, with the 6% doping sample having the lowest resistivity.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Laya Dejam, Slawomir Kulesza, Jamshid Sabbaghzadeh, Atefeh Ghaderi, Shahram Solaymani, Stefan Talu, Miroslaw Bramowicz, Mitra Amouamouha, Amir Hossein Salehi Shayegan, Amir Hossein Sari
Summary: In this study, thin films of undoped ZnO, ZnO doped with Al, ZnO doped with Cu, and co-doped ZnO with Al and Cu were deposited on quartz substrates using RF sputtering. The samples were investigated for their advanced fractal features, crystalline structure, and optical properties. The results showed that the films had different morphologies and transmission spectra, with the co-doped sample exhibiting the highest transparency in the visible region and a desirable band gap.
RESULTS IN PHYSICS
(2023)
Article
Crystallography
Hector Eduardo Petlacalco Ramirez, Salvador Alcantara Iniesta, Blanca Susana Soto Cruz, Jesus Israel Mejia Silva
Summary: In this study, thin films of fluorine-doped zinc oxide (ZnO: F) were deposited using ultrasonic spray pyrolysis. The films were characterized using various techniques, and their piezoresistive properties were evaluated using a cantilever structure. The results showed that the ZnO: F thin films exhibited suitable properties for sensor development.
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.