Article
Chemistry, Physical
Hugo Laval, Alexandre Holmes, Matthew A. A. Marcus, Benjamin Watts, Gwenael Bonfante, Marc Schmutz, Elise Deniau, Robin Szymanski, Christine Lartigau-Dagron, Xiaoxue Xu, Julie M. M. Cairney, Kazuhiko Hirakawa, Fumiyasu Awai, Takaya Kubo, Guillaume Wantz, Antoine Bousquet, Natalie P. P. Holmes, Sylvain Chambon
Summary: Efficient organic photovoltaic devices fabricated from water-based colloidal dispersions with donor:acceptor composite nanoparticles achieving up to 9.98% power conversion efficiency (PCE) are reported. The high efficiency is attributed to morphology control by surface energy matching between the donor and the acceptor materials. The narrow gap between water-based inks and organic solvent-based inks is promising for the development of eco-friendly processing and fabrication of organic photovoltaics.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jonatan Fast, Yen-Po Liu, Yang Chen, Lars Samuelson, Adam M. Burke, Heiner Linke, Anders Mikkelsen
Summary: Researchers used a new optical-beam-induced current characterization method to study the performance of semiconductor nanowire devices. The experiment revealed the mechanism of hot-electron extraction and estimated the spatial region where significant extraction could occur.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ryo Ishikawa, Yujiro Ueno, Yuichi Ikuhara, Naoya Shibata
Summary: This study reveals the formation of chemically ordered intermetallic nanoparticles and impregnation of nanoparticles into the oxide substrate at high temperatures. Negative charge transfer from the intermetallic nanoparticles to the oxide surface is observed and found to strongly affect the catalytic activities.
Article
Agriculture, Dairy & Animal Science
Qianqian Xu, Sasa Miao, Huafeng Jian, Xiaoting Zou, Xinyang Dong
Summary: This study aimed to evaluate the development of the morphology and immune function in the jejunum and ileum of squab pigeons. The results showed that the enterocyte circumference and villus morphology changed with age, and there were alterations in the levels of secretory IgA and cytokines. Overall, the changes in the intestine persisted throughout the entire period and differed between the jejunum and ileum.
Article
Nanoscience & Nanotechnology
Nan Liu, Yi Cao, Yun-Long Tang, Yin-Lian Zhu, Yu-Jia Wang, Jia-Qi Liu, Heng Zhang, Chang-Ji Li, Si-Rui Zhang, Bing Yang, Hai-Ning Li, Xiu-Liang Ma
Summary: Engineering regular crystallographic facet arrays on a large scale is useful for optimizing photophysical properties of optoelectronic materials. In this study, textured BLFO film surfaces with nanosquare arrays composed of {001} and {110} crystallographic facets were achieved using a thermal etching method. The faceted samples exhibited significantly enhanced photocurrent signals, and the {110} surface showed highly dispersive electronic structure, indicating better carrier transport.
SCRIPTA MATERIALIA
(2022)
Article
Chemistry, Physical
Natsuki Kumagai, Toshiki Shimizu, Hiroki Minoda, Mikimasa Katayama, Satoru Nakao, Toshihiko Kaji
Summary: Controlling the bulk heterojunction structure is crucial for improving the power conversion efficiency of organic photovoltaic cells. In this study, a submicrometer-thick organic photovoltaic cell consisting of metal-free phthalocyanine as the donor and fullerene as the acceptor was used to visualize the interface structure of the bulk heterojunction. Phase plate scanning transmission electron microscopy was employed to visualize the interface structure with nanometer-scale resolution. The observation revealed the formation of a hybrid layer followed by the growth of a phase-separated ordered bulk heterojunction.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Kevin P. P. Treder, Chen Huang, Cameron G. G. Bell, Thomas J. A. Slater, Manfred E. E. Schuster, Dogan Ozkaya, Judy S. S. Kim, Angus I. I. Kirkland
Summary: We introduce nNPipe for the automated analysis of morphologically diverse catalyst materials. This method utilizes automated imaging routines and convolutional neural networks to analyze large data stacks quickly and accurately. It overcomes the limitations of traditional image analysis approaches and provides insights into real industrial catalytic samples in the context of automated imaging.
NPJ COMPUTATIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Masaki Tahara, Kazuya Hasunuma, Hideki Hosoda
Summary: This study investigated the decomposition process of the isothermal alpha '' phase in beta-Ti alloys, and found that the resulting alpha + beta dual phase inherited the microstructural characteristics of the alpha ''(iso) phase. The research results indicate the existence of a strict variant selection rule between the decomposed alpha and beta phases, with a specific variant combination observed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Lourdes Marcano, Inaki Orue, David Gandia, Lucia Gandarias, Markus Weigand, Radu Marius Abrudan, Ana Garcia-Prieto, Alfredo Garcia-Arribas, Alicia Muela, M. Luisa Fdez-Gubieda, Sergio Valencia
Summary: The use of nanomagnets in biomedical applications has increased in recent years. However, the magnetic anisotropy of individual magnetic nanostructures is still mostly unknown. Current methods for measuring magnetic signals are limited in spatial resolution or magnetic field strength, and cannot be applied to nanomagnets in biological systems. In this study, we present a hybrid experimental/theoretical method to determine the magnetic anisotropy constant and magnetic easy axis of individual magnetic nanostructures embedded in biological systems.
Article
Chemistry, Multidisciplinary
Zheng Liu, Hitomi Nakamura, Tomoko Akai
Summary: This paper presents an in situ TEM/STEM investigation on the transformation process of YAG:Ce phosphors, revealing the dissolution of nanocrystalline CeO2 particles and formation of YAlO3 and YAG:Ce crystalline particles at different temperatures. The study also confirms that doped Ce atoms occupy the same atomic sites as Y atoms, and the obtained YAG:Ce phosphor exhibits efficient luminescent properties.
Article
Multidisciplinary Sciences
Yuting Luo, Shahed Rezaei, David A. Santos, Yuwei Zhang, Joseph Handy, Luis Carrillo, Brian J. Schultz, Leonardo Gobbato, Max Pupucevski, Kamila Wiaderek, Harry Charalambous, Andrey Yakovenko, Matt Pharr, Bai-Xiang Xu, Sarbajit Banerjee
Summary: This study examines the differences in electrochemical performance of V2O5 insertion electrodes with different crystal structures. The results show that the tunnel-structured V2O5 electrode has a simpler insertion mechanism and better battery performance compared to the layered V2O5 electrode, which undergoes a series of phase transformations and distortions, resulting in larger voltage hysteresis and capacity loss.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Engineering, Environmental
Alexandra Foetisch, Montserrat Filella, Benjamin Watts, Laure-Helene Vinot, Moritz Bigalke
Summary: This study tested a novel method for analyzing nanoplastics (NP) and demonstrated the potential of using scanning transmission X-ray spectro-microscopy (STXM) in combination with near-edge X-ray absorption finestructure spectroscopy (NEXAFS) to image and identify individual NP in environmental and food matrices. The method was successfully applied to different samples, proving its advantages and the characteristic spectra of polymers, enabling the detection and characterization of NP in various matrices.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Simone Finizio, Joe Bilko Bailey, Bart Olsthoorn, Joerg Raabe
Summary: Pump-probe time-resolved imaging is a powerful technique for studying dynamical processes. However, existing methods have limitations in measuring certain types of processes that are not phase locked to a known external signal. This work presents a method based on the Schuster periodogram that allows for the reconstruction of dynamical processes without knowledge of the intrinsic frequency.
Article
Chemistry, Physical
S. Eijsbouts, L. C. A. van den Oetelaar, M. Rayner, H. Govaers, T. Boonen
Summary: The morphology, dispersion, and segregation of MoS2 in Co-Mo/Al2O3 catalysts vary depending on the metal content, with real-life catalysts being more complex and heterogeneous compared to model catalysts. The balance between active phase characteristics and sites differs between the two types of catalysts, resulting in different catalytic activities and selectivities.
JOURNAL OF CATALYSIS
(2021)
Article
Nanoscience & Nanotechnology
Riya Dutta, Avradip Pradhan, Praloy Mondal, Saloni Kakkar, T. Phanindra Sai, Arindam Ghosh, Jaydeep Kumar Basu
Summary: Hybrid devices consisting of graphene or TMDs and semiconductor QDs have been widely studied for photodetector and photovoltaic applications, requiring high IQE and enhanced carrier diffusion length. Electrical measurements on such devices showed high IQE and significant enhancement of carrier diffusion length, which could be tuned by varying back gate voltage and controlling charge separation from the proximal QD layer. The obtained IQE values were remarkably high, and further improvement could be achieved by stacking multiple layers of QDs for potential applications in high-efficiency photodetectors and active photovoltaic materials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Physics, Applied
M. Bergin, T. A. Myles, A. Radic, C. J. Hatchwell, S. M. Lambrick, D. J. Ward, S. D. Eder, A. Fahy, M. Barr, P. C. Dastoor
Summary: Low-cost optical components with complex internal geometries can be fabricated using resin stereolithography (SLA) 3D printing, achieving the required vacuum properties without in situ baking. A case study demonstrates that a redesigned pinhole plate optical element, manufactured using SLA 3D printing, minimizes key sources of background signal compared to the original machined component.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Energy & Fuels
Alaa Al-Ahmad, Damian Clark, John Holdsworth, Benjamin Vaughan, Warwick Belcher, Paul Dastoor
Summary: This article presents the optical design, fabrication, and evaluation of a low-cost solar simulator for photovoltaic device testing. The simulator design uses ten different high-power LEDs arranged in a hexagonal geometry to achieve excellent spatial nonuniformity of irradiance while minimizing the number of LEDs required. The design demonstrates AAA performance and low total material cost, making it an economical choice for electrical performance testing of photovoltaic devices.
IEEE JOURNAL OF PHOTOVOLTAICS
(2022)
Article
Microscopy
M. Bergin, W. Roland-Batty, C. J. Hatchwell, T. A. Myles, J. Martens, A. Fahy, M. Barr, W. J. Belcher, P. C. Dastoor
Summary: This paper presents a method for determining the resolution of scanning helium microscopy, including quantitative measurements using appropriate test samples. The aim is to establish a consensus-based protocol for this developing technique, enabling comparable quantitative measurements of surface topography and direct comparisons between different instruments.
Article
Materials Science, Multidisciplinary
Alaa Y. Ali, Natalie P. Holmes, Mohsen Ameri, Krishna Feron, Mahir N. Thameel, Matthew G. Barr, Adam Fahy, John Holdsworth, Warwick Belcher, Paul Dastoor, Xiaojing Zhou
Summary: This study demonstrates the production of graphene thin films with good conductivity and transparency using chemical vapour deposition. The graphene films were successfully used as transparent electrodes in organic photovoltaics, resulting in improved performance of the solar cells.
Article
Chemistry, Multidisciplinary
Riku Chowdhury, Natalie P. Holmes, Nathan Cooling, Warwick J. Belcher, Paul C. Dastoor, Xiaojing Zhou
Summary: The fabrication of organic photovoltaics using non-hazardous nanoparticulate inks offers promise for ecofriendly large-scale printed solar modules. Surfactant engineering can optimize the morphology of the nanoparticles and improve the photovoltaic performance.
Article
Nanoscience & Nanotechnology
Jiangtao Qu, Daria Beznasyuk, Maja Cassidy, Rawa Tanta, Limei Yang, Natalie P. Holmes, Matthew J. Griffith, Peter Krogstrup, Julie M. Cairney
Summary: This study demonstrates the importance of correlative microscopy approaches for characterizing the structural and compositional properties of novel semiconductor nanowires. Combination of atom probe tomography and aberration-corrected transmission electron microscopy revealed detailed information about the nanowire arrays.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
A. Holmes, H. Laval, M. Schmutz, S. Blanc, J. Allouche, B. Watts, G. Wantz, N. P. Holmes, K. Hirakawa, E. Deniau, S. Chambon, C. Lartigau-Dagron, A. Bousquet
Summary: Nanoparticles with Janus morphology of donor-acceptor organic semiconductors were successfully produced by one-step nanoprecipitation. Cryogenic transmission electron microscopy and synchrotron-based scanning transmission X-ray microscopy confirmed the segregation of the organic semiconductors, while photoluminescence experiments showed efficient electron transfer. Organic field effect transistors fabricated with these nanoparticles exhibited efficient charge transport. Photoreduction experiments demonstrated the potential of these Janus nanoparticles for photovoltaics and photocatalytic reactions.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Engineering, Biomedical
Natalie P. Holmes, Iman Roohani, Ali Entezari, Paul Guagliardo, Mohammad Mirkhalaf, Zufu Lu, Yi-Sheng Chen, Limei Yang, Colin R. Dunstan, Hala Zreiqat, Julie M. Cairney
Summary: This study reports the atomic-scale composition of in vivo bone formed in a bioceramic scaffold after 12-month implantation in a large bone defect in sheep tibia. The composition of the newly formed bone tissue differs from that of mature cortical bone tissue, and elements from the degrading bioceramic implant, particularly aluminium, are present in both the newly formed bone and the original mature cortical bone tissue. Atom probe tomography and nanoSIMS mapping were used to confirm the release and distribution of these trace elements. The findings provide important insights for the design and performance of biomedical implants.
ACTA BIOMATERIALIA
(2023)
Article
Chemistry, Multidisciplinary
Justine Bull, Sophie Cottam, Isaac A. Gill, Paul C. Dastoor, Natalie P. Holmes
Summary: In this undergraduate teaching laboratory, students synthesize and characterize colloidal nanoparticles of organic semiconductors and evaluate their suitability for printed electronics applications. The laboratory exercise includes characterization techniques such as scanning electron microscopy, UV-visible spectroscopy, and photoluminescence spectroscopy, and teaches students how to match electron donating and accepting materials based on literature characteristics. The exercise was well-received by the students and can be adapted for various disciplines and levels of experience.
JOURNAL OF CHEMICAL EDUCATION
(2023)
Article
Multidisciplinary Sciences
Sabrina D. Eder, Adam Fahy, Matthew G. Barr, J. R. Manson, Bodil Holst, Paul C. Dastoor
Summary: Neutral helium microscopy is a completely nondestructive, surface-sensitive imaging technique that can be used to observe sub-resolution contrast of nanoscale thin films, providing information on the topography of the surface features and obtaining a macroscopic overview. This technique has wide applications.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Connor P. Sherwood, Rafael Crovador, Jessie A. Posar, Nathan Brichta, Matthew P. Simunovic, Fiona Louie, Paul C. Dastoor, Alan M. Brichta, Julie M. Cairney, Natalie P. Holmes, Rebecca Lim, Matthew J. Griffith
Summary: Organic semiconductors are promising materials for neural interfaces due to their biocompatibility, soft mechanical properties, and electron/ion conduction. This study explores the optoelectronic and neural interfacing properties of six organic semiconductor polymers and small molecules, which could be used for trichromatic artificial retinas. The biocompatibility of these materials is confirmed through cell viability and morphological analysis, although differences in morphological compatibility are observed compared to a glass control.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Physics, Applied
M. Bergin, J. Martens, P. C. Dastoor
Summary: By imaging the distribution of electron population on the ioniser, it was found that the instability of the detector at high electron densities is caused by non-uniformities in the electron distribution. The formation of a virtual cathode and a plasma instability are proposed as the origins of this non-uniformity.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Alaa Y. Y. Ali, Natalie P. P. Holmes, Nathan Cooling, John Holdsworth, Warwick Belcher, Paul Dastoor, Xiaojing Zhou
Summary: The performance of P3HT:PCBM organic photovoltaic devices is influenced by environmental conditions, thermal annealing, and material blend composition. Optimized laboratory fabricated devices show that humidity during fabrication can cause electrode oxidation and photo-oxidation, while thermal annealing can enhance device performance by modifying the morphology of the active layer. Additionally, the choice of PEDOT:PSS material affects the performance of P3HT:PCBM devices.
Article
Chemistry, Physical
S. M. Lambrick, M. Bergin, D. J. Ward, M. Barr, A. Fahy, T. Myles, A. Radic, P. C. Dastoor, J. Ellis, A. P. Jardine
Summary: In this study, results obtained from a scanning helium microscope (SHeM) under typical operating conditions are presented, showing the observation of diffuse scattering with an approximately cosine-like distribution centered about the surface normal. This distribution is markedly different from those observed from well-prepared surfaces typically studied in helium atom scattering experiments. Knowledge of the typical scattering distribution in SHeM experiments serves as a basis for interpreting topographic contrast in images and comparing against more exotic contrast mechanisms.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
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)
