Motic Scientific’s Post

Pulsed laser deposition or in short #PLD is one of the deposition techniques to synthesize compact to porous structure of every single element or binary target. However, one can extend the synthesis by placing the substrate on the target-side in contrast to the conventional deposition at the front of #plasma plume. if you would like to know how the morphology of the structure will be in the target-side deposition and possibility to exploit for potential #applications, check out our recent report in #chemsuschem #wiley https://lnkd.in/gBdHQs23. thanks to #MSCA fund by #European #Commissions through #Marie Sklodowska-Curie #Actions, Carlo S. Casari, Alessandro Maffini Massimiliano Righi Gianlorenzo Bussetti David Dellasega @ and other #colleagues, and #POLIMI

Folks, Can you imagine that a material with polarization rotation higher than that in chiral liquid crystals? Furthermore, the strong polarization originates from randomly shaped non-chiral platelets of MXenes, MoS2 and graphene oxide. It becomes possible when a stack of platelets acquires strong linear birefringence. We made the light to pass through a layer of nanoplatelets parallel to their surface. Then refractive index becomes different for photons oscillating in the directions perpendicular and parallel to nanoplatelets. A layer of aligned nanowires on top adds linear dichroism. The optimized combination of both optical effects placed in sequence results in record polarization rotation both in transmission and emission. Unlike liquid crystals, the layered composite from nanoplatelets can withstand the temperature exceeding 250 deg C. This would not be possible without essential contribution of my brilliant collaborators Richard Vaia, Dhriti Nepal and Andrè de Moura.

Utilizing Lorentz transmission electron microscopy (LTEM) for the very first time to observe the magnetic domain walls within rapidly solidified magnetostrictive and non-magnetostrictive amorphous submicronic wires https://lnkd.in/dQUGGjpU

Excited to share our latest research, recently published in Advanced Optical Materials (first author)! We've been exploring the potential of manganese (Mn2+) doping in 2D hybrid perovskite nanoplatelets (NPLs) with varying layer thicknesses. Our findings show that Mn2+ doping not only enhances photoluminescence quantum yield but also improves energy transfer efficiency, with the modulation of layer thickness from n = 1 to 3. Additionally, we've determined the exciton binding energy for Mn-doped NPLs, with significant implications for high-performance white light-emitting diodes. #perovskites #doping #photophysics #nanomaterials #reserachinvention #manganese #advancedopticalmaterials #nanopletelets #WLED

Types of Microscopes 1. Simple Microscope 2. Compound Microscope 3. Phase Contrast Microscope 4. Fluorescence Microscope 5. Electron Microscope 6. Scanning Electron Microscope (SEM) 7. Transmission Electron Microscope (TEM) 8. Dark Field Microscope 9. Dissecting Microscope (Stereo Microscope) 10. Digital Microscope 11. Scanning Probe Microscope (SPM) 12. Atomic Force Microscope (ATM) 13. Inverted Microscope 14. Acoustic Microscope 15. X-Ray Microscope 16. Polarizing Microscope 17. Metallurgical Microscope 18. Pocket Microscope 19. USB Microscope 20. Confocal Microscope 21. Laser Scanning Microscope 22. Differential Interference Contrast Microscope (DIC) 23. Near-field Scanning Optical Microscope (NSOM) 24. Raman Microscope 25. Super-resolution Microscope 26. Cryo-electron Microscope 27. Time-lapse Microscope There is a wide range of microscopy techniques and instruments used in various fields of science and research. ---- #Microscope #forensicscience #forensicfield #investigation #knowledge #notes #criminology #Criminalistics #crimescene

What is a scanning electron microscope? 🔍 📙 Definition SEM is an advanced electron microscope that is used to observe the specimens by irradiating the fine beam of high-energy electrons on the specimens. The variety of signals that are emitted from the surface of the specimen reveals information about the specimen. Information such as external morphology, chemical composition, and crystalline structure of the specimens can be obtained from this technology. The data that is collected from the surface of the specimen is generated as the 2dimensional image which describes the spatial variations in the surface properties of the specimen. 

Our latest work on "High Q Hybrid Mie-Plasmonic Resonances in van der Waals Nanoantennas on Gold Substrate" has finally appeared online https://lnkd.in/dv6U9VMH. We use well-known transition metal dichalcogenides (TMDs) in their quasi-bulk form (up to 150 nm thickness) to create nanophotonic structures. TMDs stick to any surface via van der Waals forces, allowing straightforward fabrication of hybrid structures with high-refractive-index dielectrics (TMDs) and metals. The result is quite striking with 30-fold improvement of Q-factors of optical modes in TMD/gold nanoantennas and formation of hybridised Mie-plasmonic resonances in the visible and near-infrared. We are able to visualise the effect of such hybridisation in scattering type SNOM (s-SNOM) experiments.

A solution-casting approach was employed to synthesize polymer composites by incorporating tantalum pentoxide (Ta2O5) and graphene oxide (GO) into a PVDF-HFP (polyvinylidene fluoride-co-hexafluoropropylene) matrix. We conducted a thorough examination of the structure, morphology, and dielectric characteristics of these composites using X-ray diffraction, scanning electron microscopy, and impedance analysis. The current research showed that the composites reinforced with Ta2O5 in the GO-PVDF-HFP material had a consistent and noticeable look inside the PVDF-HFP matrix, suggesting effective integration. More detailed information, please visit: https://lnkd.in/gs_92pTj #energy #materials #research #grapheneoxide

Compact High Voltage Power Supply for Cutting-edge Electron Microscope #PowerSupplies #ElectronMicroscope

When considering bandpass filters, understanding their required specifications is essential for optimizing performance in various optical applications https://lnkd.in/eBXSHAuT: ► Cut-On and Cut-Off Wavelength: These specifications delineate the edges of the transmitting region, guiding filter design and functionality with precise wavelength control. ► Center Wavelength (CWL): This critical parameter defines peak transmission or attenuation, playing a fundamental role in specifying the filter's spectral response. ► Transmission, Reflection, and Blocking Bands: Essential for filter characterization, understanding these bands ensures optimal selection meeting specific spectral requirements in various applications. ► Angles of Incidence (AOI): Considering the angle of light approaching the filter surface is crucial, as it influences filter behavior and spectral characteristics, particularly affecting transmission bands at higher angles. #lifescience #imaging #optics #bandpass #biomedical #filters