Article
Polymer Science
Olayinka Oderinde, Onome Ejeromedoghene, Guodong Fu
Summary: Tungsten oxide-based composites are important for applications such as efficient energy windows, but face challenges in functional hydrogels due to agglomeration. The prepared highly transparent hydrogel shows excellent mechanical properties and notable photochromic response.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Article
Engineering, Electrical & Electronic
V. R. Sreelakshmi, A. Anu Kaliani, M. Jithin
Summary: VO-MO composite thin films with different compositions of vanadium oxide and molybdenum oxide (VO75% MO25%, VO50% MO50% and VO25% MO75%) were fabricated by thermal evaporation method. The films exhibited photochromic properties and multicolorism under sunlight irradiation, and showed good reversibility on bleaching. The VO50% MO50% composition showed better photochromic and hydrophilic properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Yi Li, Wenting Chen, Zhiwei Liu, Dehua Cao, Yu Chen, Kunyapat Thummavichai, Nannan Wang, Yanqiu Zhu
Summary: This study successfully modified a novel cow dung based activated carbon (CDAC) with W18O49 nanowires as a photocatalyst. The CDAC/W18O49 nanowire composite showed significant improvement in the photocatalytic degradation of methylene blue (MB) under full-spectrum light illumination, indicating its potential application in dye wastewater treatment technologies.
Article
Engineering, Environmental
Tingfeng Ma, Bin Li, Shouqin Tian, Jiachen Qian, Longxiao Zhou, Qiufen Liu, Baoshun Liu, Xiujian Zhao, Gopinathan Sankar
Summary: W18O49 shows strong Localized Surface Plasmon Resonance (LSPR) effect and unique oxygen-deficient structure, making it widely used in photothermal application and photocatalyst. The photochromic feature of W18O49 has seldom been studied due to the challenge of exploring its features in the saturated colored state. However, the researchers found that the bleached W18O49 obtained by mild-heating the synthesized blue W18O49 nanoparticles in air had considerable reversible photochromic feature, which has great potential in energy-saving smart windows application.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Pin-Ru Chen, Hsuan-Wei Fu, Shu-Meng Yang, Kuo-Chang Lu
Summary: This study reports on the formation of high-crystallinity manganese-doped and potassium-doped tungsten oxide nanowires through chemical vapor deposition (CVD), and characterizes their properties and performance. The doping improves the catalytic efficiency and gas sensing response of the tungsten oxide nanowires.
Article
Materials Science, Multidisciplinary
Shen Wang, Hongbo Xu, Tingting Hao, Peiyuan Wang, Xiang Zhang, Hongming Zhang, Junying Xue, Jiupeng Zhao, Yao Li
Summary: This study explores the synchronous optical and electrochemical performance correspondence relationship of ESCs constructed with a 3D WO3-x nanowire networks/fluorine-doped tin oxide bifunctional electrode, revealing high areal capacity, excellent optical modulation, and stability. Moreover, it reveals the synergistic reaction mechanism between Al3+ ion intercalation behavior and surface pseudocapacitance reaction, providing a promising pathway for developing multi-functional integrated smart supercapacitors.
NPG ASIA MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Liqin Su, Yifei Yu, Linyou Cao, Yong Zhang
Summary: This study systematically characterized the inhomogeneity of strain, doping, and defects in CVD-grown WS2 monolayers and revealed the effects of different regions on the properties. It was found that the inhomogeneity substantially diminished in continuous films.
SCIENCE CHINA-MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Muteb H. Alshammari, Ahmed Onayzan Alshammari, Mohamed Tharwat Elabbasy, Rafat Zreiq, M. A. El-Morsy, A. A. Menazea, M. F. H. Abd El-Kader
Summary: In order to enhance the antimicrobial potential of hydroxyapatite (HAp), it has been incorporated into various nanocomposites (NCs) with different structures. The HAp/tungsten oxide/graphene oxide (GO) ternary nanocomposite shows an improved cell viability of 96.7 +/-3% for osteoblast cells. Analytical techniques such as XRD, FTIR, XPS, and EDS confirm the chemical compositions. The HAp/WO3/GO composite exhibits a significant improvement in anti-microbial activity with 85.6 +/- 1.6% and 110.1 +/- 2.0% for E. coli and S. aureus, respectively.
RESULTS IN PHYSICS
(2023)
Article
Materials Science, Coatings & Films
Hugh J. Bullen, Suresh Vishwanath, Rambert K. Nahm, H. Grace Xing, James R. Engstrom
Summary: In this study, the nucleation and growth of WSe2 thin films on HOPG were investigated under ultrahigh vacuum conditions. The study revealed the influence of temperature on the film composition and morphology. Examine the effects of extinguishing one of the species (W or Se) on the growth process, which provides insights into the growth mechanism.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2022)
Article
Engineering, Electrical & Electronic
Feng-Renn Juang, Wei-Yi Wang
Summary: By controlling the pH value, different nanostructures of tungsten oxide can be synthesized hydrothermally, while decorating porous nickel oxide spheres on the surface of tungsten oxide nanoplates to enhance the sensor's performance. The sensor with p-n-n junction shows high sensitivity to ethanol, fast response and recovery times, and is suitable for ethanol sensing in industrial and medical areas.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Physical
Xinxin Wang, Yihan Ling, Fubao Zhou, Peizhong Feng, Shaorong Wang
Summary: The Mo-doped NiTiO3 catalyst layer in solid oxide fuel cell can efficiently convert low-concentration coal mine methane to clean energy, while improving electrochemical performance and carbon resistance.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Multidisciplinary
Bingqi Pan, Peipei Su, Minghui Jin, Xiaocheng Huang, Zhenbo Wang, Ruhao Zhang, He Xu, Wenna Liu, Yumin Ye
Summary: Wearable humidity sensors are crucial for human health monitoring, but realizing high-performance sensors with fast response and durability remains a challenge. In this study, we present a wearable humidity sensor based on an ultrathin micro-nano hierarchical hydrogel-carbon nanocomposite. The sensor exhibits high sensitivity and a fast response/recovery over a wide humidity range due to its unique hierarchical structure. Additionally, the sensor is stable and durable against bending, strain, and scratching, and shows excellent resistance to water, sweat, and bacteria without affecting its performance. The sensor is successfully used for real-time monitoring of human respiratory behaviors and skin humidity. This convenient and cost-effective method opens up exciting opportunities for the fabrication of next-generation wearable humidity sensors.
MATERIALS HORIZONS
(2023)
Article
Multidisciplinary Sciences
Andrew G. Tomkins, Nicholas C. Wilson, Colin MacRae, Alan Salek, Matthew R. Field, Helen E. A. Brand, Andrew D. Langendam, Natasha R. Stephen, Aaron Torpy, Zsanett Pinter, Lauren A. Jennings, Dougal G. McCulloch
Summary: Ureilite meteorites, which may be the only samples from a dwarf planet's mantle, contain abundant diamonds. Electron microscopy reveals the distribution of lonsdaleite, diamond, and graphite in ureilites, suggesting a formation process involving pseudomorphic replacement of graphite by lonsdaleite, followed by diamond and graphite formation. This process could be used to manufacture shaped lonsdaleite at high pressure and also provides a model that reconciles conflicting observations about diamond formation in ureilites.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Materials Science, Multidisciplinary
Yazan Badour, Matthieu Pedros, Manuel Gaudon, Sylvain Danto
Summary: This study investigates the incorporation of photochromic WO3 nanoparticles into a polymethyl methacrylate (PMMA) matrix for the fabrication of plastic optical fibers (POFs). The prepared composites were thoroughly examined, revealing their thermal, morphological, and photochromic properties. The PMMA plastic fibers showed good homogeneity, while the presence of WO3 nanoparticles resulted in higher transmission losses. The 1D single fibers and 2D fabrics demonstrated potential as flexible UV-sensors and photochromic smart textiles.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Duy Phong Pham, Hongrae Kim, Jiwon Choi, Donghyun Oh, Yung-Bin Chung, Woo-Seok Jeon, Jungyun Jo, Vinh-Ai Dao, Suresh Kumar Dhungel, Junsin Yi
Summary: We propose an in-situ stoichiometric SiO2 layer deposition using plasma-enhanced chemical vapor deposition (PECVD) to replace outside SiO2 deposition for semiconductor devices. The addition of argon gases in the plasma environment promotes the dissociation of SiH4 and CO2, resulting in an increase in the deposition rate and a decrease in the refractive index of SiO2. The in-situ PECVD-based stoichiometric SiO2 layer is expected to simplify the semiconductor device procedure.
Article
Materials Science, Multidisciplinary
Michael C. Brupbacher, Dajie Zhang, William M. Buchta, Mark L. Graybeal, Yo-Rhin Rhim, Dennis C. Nagle, James B. Spicer
JOURNAL OF NUCLEAR MATERIALS
(2015)
Article
Materials Science, Coatings & Films
Michael C. Brupbacher, Dajie Zhang, William M. Buchta, Yo-Rhin Rhim, Dennis C. Nagle, James B. Spicer
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2015)
Article
Materials Science, Multidisciplinary
James B. Spicer, Lauren R. Olasov, Fan W. Zeng, Karen Han, Nidia C. Gallego, Cristian I. Contescu
JOURNAL OF NUCLEAR MATERIALS
(2016)
Correction
Acoustics
James B. Spicer, Fan W. Zeng
Article
Acoustics
James B. Spicer, Fan W. Zeng
Article
Materials Science, Multidisciplinary
James B. Spicer, Yamac Dikmelik
Article
Mechanics
James B. Spicer
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
(2013)
Article
Physics, Applied
J. B. Spicer, Y. Dikmelik
JOURNAL OF APPLIED PHYSICS
(2008)
Article
Chemistry, Physical
Travis J. DeJournett, James B. Spicer
JOURNAL OF PHYSICAL CHEMISTRY C
(2014)
Article
Acoustics
O. Balogun, R. Huber, D. Chinn, J. B. Spicer
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2009)
Review
Chemistry, Analytical
Megan R. Leahy-Hoppa, Joseph Miragliotta, Robert Osiander, Jennifer Burnett, Yamac Dikmelik, Caroline McEnnis, James B. Spicer
Proceedings Paper
Engineering, Electrical & Electronic
Travis J. DeJournett, Karen Han, Lauren R. Olasov, Fan W. Zeng, Brennan Lee, James B. Spicer
NANOENGINEERING: FABRICATION, PROPERTIES, OPTICS, AND DEVICES XII
(2015)
Proceedings Paper
Engineering, Electrical & Electronic
Fan W. Zeng, Karen Han, Lauren R. Olasov, Nidia C. Gallego, Cristian I. Contescu, James B. Spicer
THERMOSENSE: THERMAL INFRARED APPLICATIONS XXXVII
(2015)
Proceedings Paper
Optics
Joseph A. Miragliotta, Benjamin Brawley, Caroline Sailor, James B. Spicer, Jane W. M. Spicer
LASER RADAR TECHNOLOGY AND APPLICATIONS XVI
(2011)
Article
Energy & Fuels
Shahriyar Safat Dipta, Md Habibur Rahaman, Walia Binte Tarique, Ashraful Hossain Howlader, Ayush Pratik, John A. Stride, Ashraf Uddin
Summary: Implementing a double-sided passivation approach can enhance the performance of n-i-p structured PSCs and improve the stability and photovoltaic properties of the cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Daniel Ourinson, Andreas Brand, Andreas Lorenz, Marwan Dhamrin, Sebastian Tepner, Michael Linse, Nathalie Goettlicher, Kosuke Tsuji, Jonas D. Huyeng, Florian Clement
Summary: This work presents two approaches to reduce the amount of silver on the rear side of M2-sized industrial iTOPCon solar cells. The Cu-based approach shows promise with similar power conversion efficiency compared to the conventional approach, while the Al-based approach exhibits some limitations but demonstrates the potential of such type of contact for iTOPCon solar cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Abasifreke Ebong, Donald Intal, Sandra Huneycutt, Thad Druffel, Ruvini Dharmadasa, Kevin Elmer, Apolo Nambo
Summary: This study demonstrates the successful metallization of a PERC silicon solar cell using screen-printable copper (Cu) paste. The Cu paste contains antioxidant additives and diffusion inhibitors to prevent oxidation and diffusion of Cu. The Cu-printed cells achieved an efficiency of 19% and showed no Cu diffusion after characterization tests. The long-term stability and effectiveness of the Cu diffusion barrier were also confirmed.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Senami Zogbo, Wilfried Favre, Olivier Bonino, Marie-Estelle Gueunier-Farret
Summary: Measuring specific contact resistivity (pc) is crucial for interface engineering in high efficiency solar cells. The Transfer Length Method (TLM) is commonly used for evaluating layer sheet resistance (Rsheet) and pc, but it is not suitable for metal/Transparent Conductive Oxide (TCO) interface evaluation in silicon heterojunction (SHJ) cells. This study investigates the parameters that restrict current confinement within the TCO, including mid-gap trap density (Dit) at the a-Si:H/c-Si interface and the activation energy (Ea = Ec - EF) variation of a-Si:H contact layers.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Jean-Baptiste Charpentier, Philippe Voarino, Julien Gaume
Summary: The phenomenon of ribbon lengthening in PV modules exposed to thermal cycling is not well explained in the literature. In this study, a three layers model is proposed to explain this effect, and the predictions of the model are validated through finite element method simulations and experiments. The results show that the model predictions are consistent with the indirect measurements, but not with the direct measurements. Additionally, it is inferred that the encapsulant plays a role after the solder failure.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Jean-Baptiste Charpentier, Philippe Voarino, Julien Gaume
Summary: This study investigates the problematic ribbon lengthening observed in PV modules exposed to high amplitude thermal cycling. A simplified system model is proposed and accurate predictions are obtained using the Finite Element Method. The results show that the thickness of the encapsulant has a substantial impact on the lengthening of the ribbons.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
S. Catalan-Gomez, E. Martinez Castellano, M. Schwarz, M. Montes Bajo, L. Dorado Vargas, A. Gonzalo, A. Redondo-Cubero, A. Gallego Carro, A. Hierro, J. M. Ulloa
Summary: This study investigates the use of core-shell gallium nanoparticles as functional light scatterers on solar cells. By optimizing the nanoparticle size, the short-circuit current of the solar cells is significantly improved. The underlying physical mechanism is studied through optical measurements and simulations, and a method to reduce the plasmonic effect of the nanoparticles is demonstrated.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
M. Gamel, G. Lopez, A. M. Medrano, A. Jimenez, A. Datas, M. Garin, I. Martin
Summary: In this study, a highly reflective ohmic contact to p-type c-Ge material is demonstrated, which can improve the efficiency of thermophotovoltaic devices. The experimental results show that this contact can simultaneously meet the requirements of good back surface passivation, low electrical resistivity, and high reflectivity. Moreover, simulations suggest that implementing these back contacts has the potential to achieve conversion efficiencies comparable to high-efficiency c-Ge TPV cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Hongyang Wei, Qing Xu, Dongchu Chen, Min Chen, Menglei Chang, Xiufang Ye
Summary: This study prepared solar selective absorption films based on anodic aluminum oxide (AAO) photonic crystals using a unique electrodeposition method. The Co-Ag electrodeposited film exhibited superior solar selective absorption properties and thermal stability.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Ankit Kumar, Ankit Chauhan, Jordi Llobet, Helder Fonseca, Patricia C. Sousa, Carlos Calaza, Gil Shalev
Summary: This study found that decorating subwavelength arrays with SiO2 quasi-nanolenses (qNL arrays) can enhance the absorption of the solar spectrum. Optical absorption mechanisms in qNL arrays were investigated using near-field scanning optical microscopy (NSOM), revealing that the enhancement is a result of the combination of effective antireflection coating, increased optical interactions between adjacent dielectrics for elevated light trapping, and strong light concentration due to the presence of qNLs.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
S. Pingel, T. Wenzel, N. Goettlicher, M. Linse, L. Folcarelli, J. Schube, S. Hoffmann, S. Tepner, Y. C. Lau, J. Huyeng, A. Lorenz, F. Clement
Summary: This study demonstrates the potential to reduce silver consumption in highly efficient SHJ cells through fine-line screen printing using low temperature paste with various screens. The results show that using finer mesh allows for narrower grid fingers and lower resistance, leading to improved cell efficiency. Simulation results indicate that module wire configuration is crucial for reducing silver consumption.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Xibo He, Jun Qiu, Wei Wang, Yicheng Hou, Yong Shuai
Summary: This paper proposes a novel phase change material with high thermal conductivity and stability for fast photo-thermal conversion and storage. The experimental results demonstrate excellent durability and stability of the phase change material, with good performance in thermal conductivity and thermal storage efficiency.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Qingyuan Liu, Lin Wang, Zheng Liu, Guohua Liu
Summary: A new evaporating structure consisting of liquid marble with tunable nanowire array is proposed to enhance solar evaporation. The experiments show that the liquid marble with nanowire array exhibits outstanding evaporation performance, which has significant implications for seawater desalination or wastewater treatment.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
Hao Liu, Qiming Liu, Jinpei Liu, Yonggang Zhao, Yingjie Yu, Yue An, Ganghui Wei, Yanzheng Li, Yujun Fu, Junshuai Li, Deyan He
Summary: Moisture in the air is identified as the main cause of performance degradation in organic-inorganic hybrid solar cells. Exposure to air leads to the growth of thin oxide layer on the interface and the formation of silver sulfide, increasing the series resistance and decreasing the fill factor, thus degrading the cell performance.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Energy & Fuels
E. Blanco, P. Martin, M. Dominguez, P. Fernandez-Palacios, I. Lombardero, C. Sanchez-Perez, I. Garcia, C. Algora, M. Gabas
Summary: This study addresses the lack of optical parameters for p-type Ge wafers by determining the complex refractive indices of commercial Ge wafers with varying doping levels. The obtained data successfully reproduces the critical points associated with interband transitions and absorption features below the bandgap. The refractive indices were validated through experimental measurements and solar cell simulations.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
