Manojit Pusty

Happy to share that our latest article on 'highly substituted nonplanar porphyrins and their excellent third-order nonlinear optical properties' is now online in #InorganicChemistry Check Out 👉 #IITRoorkee #AmericanChemicalSociety #InorganicChemistry #Porphyrin #NLO

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The #SURFICEcomicseries is approaching its end. In the 12th section, we present Mingyue Ding, who focuses on understanding the heterogeneous nucleation of #supercooled droplets at Technische Universität Darmstadt.  🔗Discover her strategy to study the freezing events on different materials in the complete storyboard: https://lnkd.in/d4_wSQeT

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【Synergy of Polydopamine-Assisted Additive Modification and Hierarchical-Morphology Poly(Vinylidene Fluoride) Nanofiber Mat for Ferroelectric-Assisted Triboelectric Nanogenerator】 Advanced Fiber Materials (IF 17.2) Pub Date : 2024-07-09 , DOI:10.1007/s42765-024-00461-1 In the last decade, numerous physical modification methods have been introduced to enhance triboelectric nanogenerator (TENG) performance although they generally require complex and multiple fabrication processes. This study proposes a facile fabrication process for Poly(vinylidene fluoride) (PVDF) nanofiber (NF) mats incorporating additive and nonadditive physical modifications. Patterned PVDF NF mats are prepared by electrospinning using a metal mesh as the NF collector. As a negative triboelectric material, the TENG with the patterned PVDF NF mat exhibits superior performance owing to the engineered morphology of the contact layer. PVDF is crucial in TENGs owing to its superior ferroelectric properties and surface charge density when combined with specific electroceramics. Hence, the synergy of the physical modification methods is achieved by incorporating BaTiO3 (BTO) nanoparticles (NPs) into the PVDF. By functionalizing BTO NPs with polydopamine, the TENG performance is further improved owing to the enhanced dispersion of NPs and improved crystallinity of the PVDF chains. Utilizing large NPs produces a nanopatterning effect on the NF surface, thereby resulting in the hierarchical structure of the NF mats. The source of the voltage signals from the TENG is analyzed using fast Fourier transform. https://lnkd.in/eqpKUsj3

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Ph.D. position in electrochemical COz reduction The Materials and Electrochemistry Research Group of Prof. Julia Kunze-Liebhäuser at the University of Innsbruck focuses on gaining insight into fundamental electrochemical processes involved in commercially relevant reactions, in particular the reduction of COz, CO and H2O. The state-of-the-art analytical infrastructure at the institute contributes to a deep understanding of surface morphology, reaction interfaces and reaction mechanisms. As part of two applied research projects in international consortia (FFG, H2020), the University of Innsbruck will contribute its expertise in electrochemistry to the optimization and development of a COz electrolyzer. The electrocatalytic COz reduction is a promising strategy to mitigate COz emissions.

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𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫𝐬 𝐜𝐚𝐧 𝐧𝐨𝐰 𝐚𝐜𝐜𝐮𝐫𝐚𝐭𝐞𝐥𝐲 𝐦𝐞𝐚𝐬𝐮𝐫𝐞 𝐭𝐡𝐞 𝐞𝐦𝐞𝐫𝐠𝐞𝐧𝐜𝐞 𝐚𝐧𝐝 𝐝𝐚𝐦𝐩𝐢𝐧𝐠 𝐨𝐟 𝐚 𝐩𝐥𝐚𝐬𝐦𝐨𝐧𝐢𝐜 𝐟𝐢𝐞𝐥𝐝 An international research team led by Universität Hamburg, Deutsches Elektronen-Synchrotron DESY, and Stanford University has developed a new approach to characterize the electric field of arbitrary plasmonic samples, like e.g. gold nanoparticles. Plasmonic materials are of particular interest due to their extraordinary efficiency at absorbing light, which is crucial for renewable energy and other technologies. In the journal Nano Letters, the researchers report on their study, which will advance the fields of nanoplasmonics and nanophotonics with their promising technology platforms. 𝐎𝐫𝐢𝐠𝐢𝐧𝐚𝐥 𝐩𝐮𝐛𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧: Kai-Fu Wong, Weiwei Li, Zilong Wang, Vincent Wanie, Erik Månsson, Dominik Höing, Johannes Blöchl, Thomas Nubbemeyer, Abdallah Azzeer, Andrea Trabattoni, Holger Lange, Francesca Calegari, and Matthias Kling “Far-Field Petahertz Sampling of Plasmonic Fields” Nano Lett. 2024, 24, 18, 5506–5512 DOI: 10.1021/acs.nanolett.4c00658 https://lnkd.in/ehQ7n4bM

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Owing to their unique properties, the electrochemically self-organized TiO2 nanotube arrays (TNTAs) have attracted great attention as promising nanomaterials for energy and environmental photocatalytic applications. This has stimulated intensive research activities that focused on the synthesis, properties, modification and applications of these 1D nanomaterials as photocatalysts. In this review, all these aspects are fully covered in a comprehensive way that was not presented previously. The review starts with discussing the main fundamentals of the photocatalytic process using TNTAs. Then, the recent developments in the synthesis methods and modification strategies of TNTAs are presented in detail. The main photocatalytic applications of TNTAs including CO2 reduction, H2 and O2 production and pollutants degradation are also summarized, taking into consideration the research studies conducted in the last 10 years. Finally, the challenges and future recommendations for the use of TNTAs are highlighted. This review aims to provide an insightful step forward to a better understanding of TNTAs-based nanomaterials and their use as proficient photocatalysts in the future.

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Another article.... Our recent work has published in ACS Applied Electronic Materials. The work comprised of MOFs-derived nickel cobaltate for supercapacitor device, showing descent stability assessed by time series analysis. Please have a look: https://lnkd.in/dN5S4Zck

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The research group led by Peter Kraus (ARCNL +VU Physics and Astronomy) brings exciting news for those studying extremely small structures, around 100 nanometers in size. 🪕 Kraus and his team use a technique called High Harmonic Generation (HHG) to produce light with ultra-short wavelengths that could make these tiny structures visible. 🚀 ❓ How does it work  A light pulse with a longer wavelength is directed at a gas, where various effects split the light into several higher-order waves with much shorter wavelengths, known as high harmonics.  2️⃣ New Discoveries  In two recent publications, the team announced significant advancements in the field of HHG. In Science Advances, Kevin Murzyn and colleagues describe how they overcame the so-called Abbe diffraction limit using HHG. This breakthrough allows researchers to observe structures smaller than ever before—potentially below 100 nanometers—without relying on fluorescent labels.  In Nature Communications, Sylvianne Roscam Abbing, Nataliia Kuzkova, and their collaborators focused on generating HHG in more complex geometries, particularly in solids. Their work opens the door to more precise and faster measurements in HHG-based microscopy and other applications. 👁️‍🗨️ Do you want to know more? Check out the website: https://lnkd.in/eu463Cq5

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Apply for #PostDoc position in #Physics and #MaterialScience at Masaryk University. Both available positions aim at #PVD technology of #ThinFilms deposition. Topics are: Diagnostics of PVD processes in laboratory and industrial conditions PVD synthesis of high entropy materials for future sustainable energy applications Visit https://lnkd.in/d5AKsK86 for more information. #PVD #COLOSSE #HorizonEurope #PostDoc #Physicist #ThinFilms #Coatings #Research

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The figure provides a comprehensive overview of thermoplasmonics in solar energy utilization. It visually represents the core components and their interconnections, emphasizing the role of plasmonic absorbers in capturing and converting solar energy. The diagram highlights the significance of nanostructures in optimizing light absorption and energy transfer. Furthermore, it showcases the diverse applications of thermoplasmonics, including solar-driven evaporation, photothermal catalysis, and thermo-photovoltaic effects. By illustrating these concepts, the figure serves as a valuable tool for understanding the fundamental principles and potential applications of thermoplasmonics in advancing solar energy technologies.

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After dual-junction perovskite/silicon solar cells come triple-junction perovskite/perovskite/silicon tandems. However, processing compatibility may be a significant challenge when depositing so many layers, where in particular the recombination junction between the perovskite top and perovskite mid cell may be challenging. Here, we discuss a way to completely circumvent this issue through making a 4-terminal triple-junction tandem. Moreover, with this approach, the top cell is deposited on glass, opening the design space towards high-efficiency and robust top cells. https://lnkd.in/dQ7cEJGC

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In addition to the standard benefits (uniformity, thickness control, conformality) — inherited from the atomic layer deposition (ALD) — the gas-phase and solvent-free atomic/molecular layer deposition (ALD/MLD) technique can yield novel inorganic-organic thin film materials which have not/cannot be synthesized through the traditional fabrication techniques (i.e. solvothermal synthesis). This is both an opportunity and a challenge: The new chemical compositions and structures are likely to result in new functional properties. But how do we resolve these new chemical and structural schemes if i) we do not have any prior (powder) materials to compare the data with ii) traditional techniques such as Rietveld refinement cannot be employed and iii) the low material amounts and the supporting thin film structures (substrate) impose detection and data processing limitations? We need to extend our characterization technique platform. In our latest paper in American Chemical Society (ACS) Chemistry of Materials, we demonstrate how these fundamental film characteristics are revealed for ALD/MLD grown iron-terephthalate (Fe-BDC) thin films through an extensive material characterization using advanced techniques such as synchrotron grazing-incidence X-ray diffraction (GIXRD), resonant inelastic X-ray scattering (RIXS), and crystal structure predictions. The Fe-BDC is one the most studied metal-organic framework (MOF) -type materials (over 1000 related studies) due its diverse material properties and thus appealing potential for photocatalysis, biomedicine, and beyond. Interestingly, the bulk synthesized Fe-BDCs have several known crystal structures, yet none of them match with the ALD/MLD grown in-situ crystalline Fe-BDC thin films. Here we propose a completely new crystal structure for the Fe-BDC thin films (monoclinic C2/c) deduced from computational simulations and synchrotron GIXRD. Other highlights in the work involve e.g. new compositional aspects related to unexpected reaction mechanisms. Thank you all the co-authors for this comprehensive work and fruitful collaboration. Special praises goes to Kim Eklund (crystal structure predictions), Víctor Rubio Giménez (synchrotron GIXRD), Sami Vasala (RIXS), and Johan Lindén (Mössbauer). PS. Join to listen my talk on this very topic in the ALD/ALE 2024 conference on Wednesday 7th of August at 8:00 am (Emerging Materials; hall 3E) in Helsinki, Messukeskus. #ChemistryOfMaterials #aldep #ALDMLD #ALDALE2024 Link below:

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There is great potential in using one-dimensional (1D) and two-dimensional (2D) carbon-based materials as interfacial layers in perovskite solar cells (PSCs). These interfacial layers, functioning as electron transport layers (ETLs) or hole transport layers (HTLs), offer potential solutions to key challenges faced by PSCs. This advancement is crucial for the development of reliable and efficient perovskite photovoltaic systems, paving the way for practical solar energy applications. https://lnkd.in/dg5Vx-XN

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Single-Step Synthesis of Sub-10 nm Magnetic Nanoparticles with High Saturation Magnetization and Broad pH Stability. Read the full article here: https://lnkd.in/dhnz_6be

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A research team at the Helmholtz Institute Erlangen-Nürnberg for Renewable Energy, Jülich Institute for Energy, has successfully developed a breakthrough method for recycling perovskite solar cells. Using a layer-by-layer solvent extraction approach, they have managed to recover nearly every layer of a planar methylammonium lead iodide (MAPbI3) perovskite solar cell. 🔹 Incredible Efficiency: Recovery Rate: Up to 99.97% of materials recovered! Cost Savings: Potential reduction in material costs by up to 63.7% in the lab and 61.4% in industrial manufacturing. 🔹 Key Insights: Quality Preservation: Recycled materials retained high quality, enabling the production of new solar cells without significant loss in efficiency. Selective Dissolution: Layers in solution-processed solar cells can be separated easily, facilitating the recycling process. 🔹 Challenges and Successes: Spiro-OMeTAD Recycling: Despite difficulties due to residual additives, the team found that complete removal of impurities wasn't necessary to maintain cell efficiency. Test Results: Solar cells made with recycled materials showed efficiency comparable to those made with fresh materials. 🔹 Next Steps: The researchers are now focused on scaling up their process, aiming to improve efficiencies and demonstrate the method's applicability for larger solar modules. 🔗 Discover the full story and the potential impact of this groundbreaking research on the future of solar energy: https://lnkd.in/d5Ek5Rc2 #RenewableEnergy #SolarPower #Innovation #Sustainability #GreenTech #EnergyTransition #CleanEnergy

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Our article "Performance improvement of blue light micro-light emitting diodes (< 20μm) by neutral beam etching process" is now available online. https://lnkd.in/gkVDJrFm

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Electron transfer (ET) is a process in which an electron is transferred from one atom or molecule to another. ET is fundamental to electrochemical reactions with applications in many fields. Nanoscale ET, which involves the transfer of electrons in the range of 1-100 nanometers in solids is fundamental to the design of multifunctional materials. However, this process is not yet clearly understood. https://lnkd.in/gWAWDTmn #nanotechnology #materialsscience #advancedmaterials #engineering #electronics #innovation #scienceandtechnology

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