Article
Optics
Richeng Lin, Yanming Zhu, Liang Chen, Wei Zheng, Mengxuan Xu, Jinlu Ruan, Renfu Li, Titao Li, Zhuogeng Lin, Lu Cheng, Ying Ding, Feng Huang, Xiaoping Ouyang
Summary: This study introduces a new type of large-size scintillator with high efficiency and ultrafast radiation fluorescence, which shows great potential in ionizing radiation detection for medical diagnosis, nuclear control, and high-energy physics. The doped gallium in ZnO substrate enables an ultrafast fluorescence excited by alpha-ray, with a decay time as short as 600 picoseconds, making it an excellent candidate for high-quality ultrafast dynamic imaging.
Article
Materials Science, Multidisciplinary
R. C. Villarreal, M. Luque-Morales, M. J. Chinchillas-Chinchillas, P. A. Luque
Summary: In this study, zinc oxide nanoparticles (ZnO NPs) synthesized using Peumus boldus extract were employed for the degradation of methylene blue (MB). The experimental results showed 96% degradation in 180 min and according to the analysis, mass transfer plays a dominant role in the degradation kinetics. These findings are significant for the design of larger-scale reactors.
RESULTS IN PHYSICS
(2022)
Article
Engineering, Environmental
Suresh Kumar Pandey, Pradeep Kumar Mishra, Dhanesh Tiwary
Summary: A spherical ZnO nanoparticle was combined with a flower-like NiS nanoparticle using a simple hydrothermal method. The synthesized nanocomposites showed improved photocatalytic efficiency compared to pure ZnO and NiS nanoparticles, and were able to degrade up to 96% and 93% of PNP and RhB dyes, respectively, under UV-light illumination. The introduction of NiS to the nanocomposites led to the separation of useful e(-)/h(+) with strong redox potential, resulting in the observed improvement in photocatalytic performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Ivan D. Venevtsev, Andrey P. Tarasov, Arsen E. Muslimov, Elena I. Gorokhova, Ludmila A. Zadorozhnaya, Piotr A. Rodnyi, Vladimir M. Kanevsky
Summary: The study shows that the scintillating properties of zinc oxide samples prepared in different morphologies vary significantly depending on sample structure and preparation conditions. High transmittance of ceramics makes them suitable for high energy X-ray and gamma radiation detection, while other structures such as whiskers and nanowalls may be preferred for applications where large scintillator thickness is not necessary.
Article
Materials Science, Multidisciplinary
Nurizati Rosli, Mohd Mahadi Halim, Md Roslan Hashim, Wan Maryam Wan Ahmad Kamil, Gia-Yuan Zhuang, Si-Yuan Chan, Hsu-Cheng Hsu
Summary: By tuning the concentration of the chemical bath solution, a transition from ZnO nanowalls to nanoflakes was achieved. The changes in particle size and crystallite size of the nanostructures affect the threshold and emission wavelength of random lasing. Ultimately, the nanoflakes structure showed the lowest threshold for random lasing, making it the best structure for ZnO random lasers.
RESULTS IN PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Zhuang Shao, Zungang Wang, Jinliang Liu, Ziqi Cai, Bangjie Deng, Yaodong Sang, Haoxuan Guo, Haizheng Chen, Cuicui Zhang, Haoran Zhu, Qingmin Zhang
Summary: Nuclear facilities produce mixed alpha/beta/gamma radiation during operation, and accurately discriminating them is crucial. Portable radiation monitors currently face issues of small detection area and high misidentification ratio. This study proposes a new Phoswich design that can identify alpha, beta, and gamma simultaneously, using the combined information of position, amplitude, and time for better accuracy. A special identification circuit scheme is also suggested to increase the detector's rate capability and identification accuracy. The performance analysis shows promising results for alpha, beta, and gamma identification.
IEEE TRANSACTIONS ON NUCLEAR SCIENCE
(2022)
Article
Engineering, Electrical & Electronic
Sheng-Yao Chou, Chih-Cheng Yang, Ting-Chang Chang, Tsung-Ming Tsai, Shih-Kai Lin, Chan-Wei Kuo, Chung-Wei Wu, Yu-Bo Wang, Simon M. Sze
Summary: An advanced SCF technique suitable for low temperature and high pressure materials and electronic devices, proposed for a ZnO-based RRAM, increases oxygen ion concentration and improves memory performance. Investigating carrier transport mechanism and introducing physical models help to explain the mechanism of SCF treatment.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2022)
Article
Engineering, Electrical & Electronic
Qiwen Kong, Long Liu, Zijie Zheng, Chen Sun, Zuopu Zhou, Leming Jiao, Annie Kumar, Rui Shao, Jishen Zhang, Haiwen Xu, Yue Chen, Bich-Yen Nguyen, Xiao Gong
Summary: We present a 3-D oxide semiconductor fin-gate ferroelectric field-effect transistor (Fe-FET) compatible with back-end-of-line (BEOL) process. Our Fe-FETs utilize atomic layer deposition (ALD)-grown zinc oxide (ZnO) channel and Zr-doped HfO2 (HZO) ferroelectric dielectric, which conformally cover the fin-shaped tungsten (W) metal gate with uniform thickness on all surfaces. These devices demonstrate excellent electrical characteristics, including large memory windows, high endurance, long-term retention, robust ON/OFF ratio, and good linearity, making them highly promising for future ultrahigh-density 3-D integrated computing applications.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Chemistry, Multidisciplinary
Sachin Sachin, Biplob Kumar Pramanik, Nahar Singh, Rumbidzai Zizhou, Shadi Houshyar, Ivan Cole, Hong Yin
Summary: ZnO nanoparticles have high efficiency in removing contaminants from water and doping with transitional metals can further enhance their adsorption performance. In this study, ZnO NPs doped with Co, Fe, and Mn were investigated. Co-doped ZnO showed the highest adsorption capacity due to its increased surface area and reduced agglomeration. The adsorption of Congo red on Co-doped ZnO followed the pseudo-second-order model and the Langmuir isotherm. Moreover, Co-doped ZnO was successfully incorporated into an alginate membrane, demonstrating excellent adsorption performance for wastewater purification.
Article
Nanoscience & Nanotechnology
Mengli Lei, Meiqi Gao, Xuanyu Yang, Yidong Zou, Abdulaziz Alghamdi, Yuan Ren, Yonghui Deng
Summary: The mesoporous ZnO-Au composites prepared by photoreduction exhibit superior ethanol sensing performance, attributed to their excellent physical structure and interface effects. Compared to other noble metals, mesoporous ZnO-Au shows higher selectivity and sensitivity to ethanol.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Juhyung Seo, Teahyun Park, Hocheon Yoo
Summary: This study systematically investigates a solution processed zinc-tin-oxide film and obtains suitable turn-on voltage and uniform charge transport property. The film is applied to a complementary inverter logic and demonstrates excellent circuit performance.
ORGANIC ELECTRONICS
(2022)
Article
Multidisciplinary Sciences
Tong Jin, Zheng Liu, Jiajun Luo, Jun-Hui Yuan, Hanqi Wang, Zuoxiang Xie, Weicheng Pan, Haodi Wu, Kan-Hao Xue, Linyue Liu, Zhanli Hu, Zhiping Zheng, Jiang Tang, Guangda Niu
Summary: Efficient light extraction in perovskite X/gamma-ray scintillators is hindered by the small Stokes shift of exciton luminescence. Here, Jin et al. exploit the intrinsic strain in 2D perovskite as self-wavelength shifting to reduce the self-absorption effect without sacrificing the device response speed.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Abdullah Selim Parlakyigit, Celaletdin Ergun, Ozkan Gokcekaya
Summary: A spray atomization-assisted inductively coupled plasma system was used to synthesize ZnO nanoparticles at atmospheric pressure from a liquid precursor. The effect of process parameters on the morphology, particle size, and size distribution of the final particles was evaluated using FTIR, XRD, TEM, and SAED methods. The particles exhibited equiaxed morphology with mean particle sizes ranging from 17.5 ± 9.5 nm to 25.7 ± 11.2 nm.
CERAMICS INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Ki Seok Kim, Min Seong Kim, Jusung Chung, Dongwoo Kim, I. Sak Lee, Hyun Jae Kim
Summary: We present a transparent and flexible polyimide (PI)-doped single-layer (PSL) phototransistor for visible light detection. By co-sputtering amorphous indium-gallium-zinc oxide (IGZO) and PI targets, the PSL is deposited on a SiO2 gate insulator, serving as both a channel layer and a visible-light absorption layer. The PI doping leads to improved optoelectronic characteristics, including higher photoresponsivity, photosensitivity, and specific detectivity, attributed to the induced subgap states. A flexible PSL phototransistor is also fabricated, demonstrating stable optoelectronic characteristics even after 10,000 bending tests.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Biotechnology & Applied Microbiology
Suttirak Pairoj, Pattareeya Damrongsak, Badin Damrongsak, Natini Jinawath, Rossukon Kaewkhaw, Chinnapat Ruttanasirawit, Tanaporn Leelawattananon, Kitsakorn Locharoenrat
Summary: This study aimed to enhance the specific interactions between multiple chemo drug candidates and human cancer cell lines by immobilizing them on ZnO nanoparticles. Among the formulated chemo drugs, the CP-DOX-ZnO complex showed high sensitivity towards breast adenocarcinoma cells with high loading capacity and efficiency. The results suggest that the endocytosis of Carboplatin-DOX-ZnO by cancer cells leads to selective internalization and induced acute apoptosis, resulting in inhibition of the growth signal of target cancer cells.
ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Edgar Lara-Curzio, Ercan Cakmak, Lianshan Lin, Andres E. Marquez-Rossy, Beth Armstrong, Alexis Flores-Betancourt, Antonio Macias
Summary: The study found that the residual stresses on the outer surface of the dense yttria-stabilized zirconia (YSZ) layer were compressive, increased with decreasing temperature, and exhibited nonlinear temperature dependence, particularly below 600 degrees C. An elastic model incorporating micromechanics and laminate theory successfully predicted this nonlinearity, considering the order-disorder transition of YSZ around 600 degrees C and the magnetic transition of NiO at the Neel temperature around 265 degrees C. The implications of these findings for the reliability of solid oxide fuel cells are discussed.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
Mengya Li, Wan-Yu Tsai, Bishnu P. Thapaliya, Harry M. Meyer, Beth L. Armstrong, Huimin Luo, Sheng Dai, Jagjit Nanda, Ilias Belharouak
Summary: The study demonstrates that coal char particles treated with acid and high-temperature argon annealing exhibit desired porous structure, surface properties, and turbostratic nanodomains, making them suitable for use as anodes in lithium-ion and sodium-ion batteries, delivering high reversible capacity and maintaining good electrochemical performance at high rates.
Article
Nanoscience & Nanotechnology
Weiping Liu, Bingqian Zheng, Xuechen Yin, Xiaoxi Yu, Yugang Zhang, Lutz Wiegart, Andrei Fluerasu, Beth L. Armstrong, Gabriel M. Veith, Surita R. Bhatia
Summary: XPCS microrheology and conventional bulk rheology were used to study the properties of silica nanoparticle dispersions in battery electrolyte applications. The results showed that the coated silica dispersions become more viscous at higher concentrations, with shear-thinning behavior. However, dispersions with 30% particles exhibited weak shear-thickening behavior when measured using conventional mechanical rheometry.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Mary K. Burdette-Trofimov, Beth L. Armstrong, Ryan P. Murphy, Luke Heroux, Mathieu Doucet, Stephen E. Trask, Alexander M. Rogers, Gabriel M. Veith
Summary: This study investigated the structure of high silicon content electrode slurries with and without dispersants under varying shear rates, showing that the addition of dispersants had contrasting effects on PAA and LiPAA based slurries.
Article
Materials Science, Coatings & Films
R. Pillai, S. Dryepondt, B. L. Armstrong, M. J. Lance, G. M. Muralidharan
Summary: The study investigates the high temperature oxidation behavior of diffusion nickel aluminide coatings on two Ni based alloys, showing different results in terms of the retention of beneficial Al-rich beta-(NiFe)Al phase. The disappearance of the Al-rich phase in the coating on one alloy was mainly due to the chemical potential gradients of Al and Ti and their faster diffusivities compared to the coated developmental alloy. The presence of Fe in the alloy was shown to support the retention of beta-(NiFe)Al phase in the coating, while the presence of Ti in the alloy was found to be detrimental for long-term coating performance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
Mary K. Burdette-Trofimov, Beth L. Armstrong, Luke Heroux, Mathieu Doucet, Andres E. Marquez Rossy, David T. Hoelzer, Nihal Kanbargi, Amit K. Naskar, Gabriel M. Veith
Summary: This study explores the use of polyimide binder in silicon anode systems, finding that optimizing binder concentration can lead to a 50% increase in capacity by enhancing binder-silicon-carbon interactions. The research also highlights the importance of understanding the ordering and structure of the binder for improving electrode architecture and electrochemical properties.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Beth L. Armstrong, Kevin A. Hays, Rose E. Ruther, W. Blake Hawley, Alexander Rogers, Ian Greeley, Kelsey A. Cavallaro, Gabriel M. Veith
Summary: This study found that polymers with the same chemical repeat structure as high molecular weight poly acrylic acid (PAA) and lithium poly acrylic acid (LiPAA) binders, but with low molecular weight, perform the best when used as dispersants in silicon-graphite electrodes. On the other hand, electrodes formulated using PAA had good dispersion but performed the worst in cycling. The binder was found to be unevenly distributed in the electrode, with local regions accommodating volume expansion during cycling.
JOURNAL OF POWER SOURCES
(2022)
Article
Materials Science, Multidisciplinary
Gerald E. Jellison, Raphael P. Hermann, Elliot D. Specht, Lynn A. Boatner, T. Zac Ward, Andreas Herklotz
Summary: Various bulk and thin-film crystals of SnO2 were grown and examined using generalized ellipsometry techniques, revealing distinct characteristics and behaviors of the different materials.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Margareta Wagner, Jakub Planer, Bettina S. J. Heller, Jens Langer, Andreas Limbeck, Lynn A. Boatner, Hans-Peter Steinruck, Josef Redinger, Florian Maier, Florian Mittendorfer, Michael Schmid, Ulrike Diebold
Summary: Vanadium dioxide undergoes a metal-insulator transition near room temperature, showing promise for various applications. A study of its surface properties revealed a stable oxygen-rich superstructure upon annealing over 600 degrees Celsius, providing insights into its surface reconstruction mechanisms.
PHYSICAL REVIEW MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Mary K. Burdette-Trofimov, Beth L. Armstrong, Rachel J. Korkosz, J. Landon Tyler, Rebecca D. McAuliffe, Luke Heroux, Mathieu Doucet, David T. Hoelzer, Nihal Kanbargi, Amit K. Naskar, Gabriel M. Veith
Summary: This study explores the impact of the binding, solution structure, and solution dynamics of poly(vinylidene fluoride) (PVDF) with silicon on its performance as compared to traditional graphite and Li1.05Ni0.33Mn0.33Co0.33O2 (NMC) electrode materials. The results show that PVDF forms a conformal coating over the entirety of the silicon particle, in contrast to its binding with graphite and NMC materials. The homogeneous coating of silicon disrupts the percolation pathways, resulting in poor cycling performance of silicon materials.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Multidisciplinary Sciences
Zhichang Wang, Michele Reticcioli, Zdenek Jakub, Igor Sokolovic, Matthias Meier, Lynn A. Boatner, Michael Schmid, Gareth S. Parkinson, Ulrike Diebold, Cesare Franchini, Martin Setvin
Summary: Polarizable materials, such as the incipient ferroelectric perovskite KTaO3, exhibit the ability to tune chemical reactivity. The adsorption states of molecules are influenced by the coupling between surface polarity and ferroelectric polarization.
Article
Multidisciplinary Sciences
Ana C. Martinez, Alexis Maurel, Ana P. Aranzola, Sylvie Grugeon, Stephane Panier, Loic Dupont, Jose A. Hernandez-Viezcas, Bhargavi Mummareddy, Beth L. Armstrong, Pedro Cortes, Sreeprasad T. Sreenivasan, Eric MacDonald
Summary: This study explores the key aspect of achieving fully functional 3D printed electrodes through a precursor approach: a compromise between electrochemical and mechanical performance. In addition, it discusses the gaps that limit the multi-material 3D printing of batteries via the VPP process.
SCIENTIFIC REPORTS
(2022)
Article
Nanoscience & Nanotechnology
Khryslyn G. Arano, Beth L. Armstrong, Ethan Boeding, Guang Yang, Harry M. Meyer III, Evelyna Wang, Rachel Korkosz, Katie L. Browning, Thomas Malkowski, Baris Key, Gabriel M. Veith
Summary: Vinylene carbonate (VC) and polyethylene oxide (PEO) are used as functional agents to mimic the solid electrolyte interphase (SEI) chemistry of silicon. Covalent surface functionalization of silicon particles was achieved through ball-milling with sacrificial VC and PEO. The additives are strongly bound to silicon, resulting in improved stability and dispersion of the functionalized particles. Raman mapping and capacity measurements show that VC-milled silicon exhibits higher capacity and improved electrode processing compared to neat silicon.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Physics, Applied
L. A. Boatner, C. B. Finch, W. E. Brundage, J. A. Kolopus, G. R. Gruzalski, K. E. Johanns, P. Sudharshan Phani, G. M. Pharr, W. C. Oliver
Summary: Instrumented indentation experiments at elevated temperatures require careful attention to experimental details, including the choice of indenter tip material. This study used rf-induction heating float-zone and high-temperature solution single-crystal growth techniques to prepare a suite of bulk refractory carbide specimens. These materials were characterized and compared to sapphire and polycrystalline WC-Co, and the results showed that single-crystal WC is a promising candidate for elevated-temperature nanoindentation tips.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Chanaka Kumara, Beth Armstrong, Inwoong Lyo, Hong Wook Lee, Jun Qu
Summary: Lubricants are crucial for improving the durability of moving parts in transportation vehicles and industrial machinery. This study introduces dodecanethiol-modified ZnS nanoparticles as oil-miscible and transparent antiwear additives for non-polar base oil. The ZnS nanoparticles demonstrated excellent friction and wear protection, outperforming the commercial antiwear additive zinc dialkyldithiophosphate (ZDDP).