Quondensate’s Post

In case you missed it: #QuMat seminar with Giulio Cerullo Ultrafast dynamics of 2D semiconductors and their hetero-structures Now on youtube! - https://lnkd.in/dn7xvJec Host: Zeila Zanolli Layered materials are solids consisting of crystalline sheets with strong in-plane covalent bonds and weak van der Waals out-of-plane interactions. These materials can be easily exfoliated to a single layer, obtaining two-dimensional (2D) materials with radically novel physico-chemical characteristics compared to their bulk counterparts. The field of 2D materials began with graphene and quickly expanded to include semiconducting transition metal dichalcogenides (TMDs). 2D materials exhibit very strong light-matter interaction and exceptionally intense nonlinear optical response, enabling a variety of novel applications in optoelectronics and photonics. Furthermore, stacking 2D materials into heterostructures (HS) offers unlimited possibilities to design new materials tailored for applications. In such HS the electronic structure of the individual layers is well retained because of the weak interlayer van der Waals coupling. Nevertheless, new physical properties and functionalities arise beyond those of their constituent blocks, depending on the type, the stacking sequence and the twist angle of the layers. This talk will review our recent studies on the ultrafast non-equilibrium optical response of TMDs and their HS. Using high time resolution ultrafast transient absorption (TA) spectroscopy, we monitor the ultrafast onset of exciton formation in TMDs [1] and the dynamics of strongly coupled phonons [2, 3]. Using helicity resolved TA spectroscopy we time-resolve intravalley spin-flip processes [4]. In HS of TMDs we measure ultrafast interlayer hole transfer [5], interlayer exciton formation [6] and use two-dimensional electronic spectroscopy to dissect interlayer electron and hole transfer processes [7]. [1] C. Trovatello et al., Nature Commun. 11, 5277 (2020). [2] C. Trovatello et al., ACS Nano 14, 5700-5710 (2020). [3] C. Sayers et al., Nano Lett. 23, 9235–9242 (2023). [4] Z. Wang et al., Nano Lett. 18, 6882-6891 (2018). [5] Z. Wang et al., Nano Lett. 21, 2165–2173 (2021). [6] V. Policht et al., Nature Commun. 14, 7273 (2023). [7] V. Policht et al., Nano Lett. 21, 4738–4743 (2021). Please visit https://lnkd.in/e4ne5z9R for the full list of QuMat seminars. #quantum, #quantummaterials

📱 An increasing number of material classes and complex geometries are found in integrated structures for semiconductor devices, elevating the importance of considering thermomechanical integrity to ensure optimal performance, reliability, and yield. 💻 In our recent webinar, Dr. Kris Vanstreels, researcher at imec, discusses several nanoindentation based approaches that can be used to study the thermomechanical integrity of thin films and nano-interconnects for semiconductor applications. Watch: https://lnkd.in/gHZCDVKY ⬇️ In the clip below, Dr. Vanstreels explains and demonstrates the use of nanoDMA to rapidly determine delamination area. More on nanoDMA III: https://lnkd.in/gjUr-QcW #semiconductor #materialscience #semiconductors

Let us draw your attention to a recent publication on 𝗨𝗦𝗣 𝗹𝗮𝘀𝗲𝗿 𝗽𝗿𝗼𝗰𝗲𝘀𝘀𝗶𝗻𝗴 by the University of Applied Sciences Aschaffenburg, featuring the 𝗫𝗔𝗥𝗜𝗢𝗡 𝗢𝗽𝘁𝗶𝗰𝗮𝗹 𝗠𝗶𝗰𝗿𝗼𝗽𝗵𝗼𝗻𝗲 𝗘𝘁𝗮𝟰𝟱𝟬 𝗨𝗹𝘁𝗿𝗮. This research demonstrates the capabilities of our technology in monitoring micro-layer ablation on semiconductor components. Here are some key points: - Ultra-short-pulsed laser ablation of thin multilayer materials can be monitored using XARION’s Eta450 Ultra Optical Microphone. - Monitoring the material transition between polymer and copper during laser ablation is facilitated by observing a broad acoustic frequency spectrum between 100 kHz and 2 MHz in air, coupled with detecting a sudden change in acoustic energy. - A direct correlation was found between increased detected acoustic energy and a higher ablation rate.   We extend our appreciation to the team at TH Aschaffenburg University of Applied Sciences for their remarkable research, and we're honored to contribute to the advancement of real-time laser processing quality control. Stay tuned for further developments!   #XARION #THAschaffenburg #USPLaserProcessing #OpticalMicrophone #SemiconductorIndustry #Research #Innovation

We want to announce about upcoming  21st International Conference on Metal Organic Vapor Phase Epitaxy (#ICMOVPE_XXI), held on May 12-17, 2024, in Las Vegas, Nevada. 🌎 The conference, the pre-eminent event in the field, will present the latest advances in science, technology, and applications of MOVPE and related growth techniques. 👇 By attending, you'll have the opportunity to network with leading researchers and professionals, gain insights from the cutting-edge research presented, and contribute to advancing the field. 👨🔬 Wlodek Strupinski, Walery Kołkowski and Iwona Pasternak, renowned for their innovative approach, will delve into the rapid growth of the global #VCSEL market, propelled by its diverse applications in photonics. They will focus on advancements in epitaxial growth techniques, particularly VCSEL structures grown on germanium substrates.Their method aims to #enhance_crystal_quality, boost quantum efficiency, and minimize environmental impact. 🌱 They will also underscore the importance of scaling to larger wafer diameters and integrating with CMOS technology to meet the surging demand and technical requirements. Their novel solution promises to #elevate_production_yield, reduce defects, and benefit industries such as automotive, smartphones, and 3D sensing. 🚊 💪 Vigo Photonics, a standout in the industry, manufactures exceptionally high-quality III-V #epitaxial_structures for use in sophisticated electronics such as lasers, photodetectors, transistors and other devices. Their unique proposition lies in the broad range of high-quality epi-wafers they offer, which can be produced in large volumes and small batches, catering to the diverse needs of the industry.

Plasmonic tunnel junctions are incredibly fascinating and make it possible to reveal new phenomena. See our latest findings on an unexpected upconversion process in 2D semiconductors: https://lnkd.in/e4X_rS-P

Our new perspective in American Chemical Society ACS Nano. This article was written as part of the 2023 ACS Nano Lectureship award and reflects my views expressed in the lecture. Led by postdocs Seunguk Song and Dr. Mahfujur Rahaman. Penn Engineering Electrical and Systems Engineering at Penn #nanotechology #electronics #semiconductors #2Dmaterials #photonics #optoelectronics #nanomaterials Can 2D Semiconductors Be Game-Changers for Nanoelectronics and Photonics ? https://lnkd.in/eQuumMam

Probing Mechanical Properties 📐 Listen and Learn about Stacked Ultra-Thin Films and Nanostructures.

🔬 [𝗟𝗶𝘃𝗲 𝗪𝗲𝗯𝗶𝗻𝗮𝗿 : 𝗖𝗵𝗮𝗿𝗮𝗰𝘁𝗲𝗿𝗶𝘇𝗶𝗻𝗴 𝘀𝗲𝗺𝗶𝗰𝗼𝗻𝗱𝘂𝗰𝘁𝗼𝗿 𝗺𝗮𝘁𝗲𝗿𝗶𝗮𝗹𝘀 𝗯𝘆 𝗼𝗽𝘁𝗶𝗰𝗮𝗹 𝗺𝗶𝗰𝗿𝗼𝘀𝗽𝗲𝗰𝘁𝗿𝗼𝘀𝗰𝗼𝗽𝗶𝗲𝘀]🧬 Join Thibault Brulé and Agnès Tempez for their webinar! The growing of semiconductor materials industrialization requires technologies to characterize their properties. Optical microspectroscopic platforms like Raman microscopes offer both physical and chemical information in one system. Thus, process qualification, wafer uniformity assessment, or defects inspection of wafers can be achieved with Raman microscopy. These can also be applied to new materials characterization. In this webinar, Thibault and Agnès will highlight how Photoluminescence and Raman microscopies can address semiconductor challenges. We will also show how the combination of micro-spectroscopies with AFM (Atomic Force Microscopy) can provide nano resolution and deeper understanding of these structures.   📅 𝗗𝗮𝘁𝗲: 𝗢𝗰𝘁𝗼𝗯𝗲𝗿 𝟭𝟳𝘁𝗵 🕒 𝗧𝗶𝗺𝗲: 2PM BST, 3PM CEST, 6AM PDT, 9AM EDT 𝗪𝗵𝗼 𝘀𝗵𝗼𝘂𝗹𝗱 𝗮𝘁𝘁𝗲𝗻𝗱: - Scientists working on semiconductor materials developments, - Scientists looking for new methods of material characterization for semiconductors, - Semiconductors, Photovoltaics, and 2D materials Raman users.   𝗞𝗲𝘆 𝗹𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗼𝗯𝗷𝗲𝗰𝘁𝗶𝘃𝗲𝘀: - Understand the different challenges that Raman microscopy solves, - Understand the capital-gain of Raman microscopy for semiconductor industry, - Why Raman microscopy is an ideal technique for semiconductor materials characterization   🔗 𝗥𝗲𝗴𝗶𝘀𝘁𝗲𝗿 𝗡𝗼𝘄: https://lnkd.in/efq_j2td   #webinar #semiconductor #AFM #raman #photoluminescence #2Dmaterials #photovolatics

Following up on our last post about our exiting Sc and Y precursors, Agnitron's recent article on CS demonstrates the critical role of technology innovation in shaping processes for novel materials and their associated devices. The growing field of power electronics is a driver for innovation in nitride-based semiconductors. At Dock, we are actively collaborating with Stephano Leone and his team at the Fraunhofer IAF, who are featured in the article for being the only group to demonstrate the MOCVD growth of (Al,Sc)N. In their latest publication on the MOCVD growth of (Al,Sc)N, they showed for the first time the ferroelectricity of MOCVD grown wurzite (Al,Sc)N.This opens up the field for novel GaN-based ferroelectric devices using the dominant deposition method for group III nitrides. #Powerelectronics #GaN #MOCVD #CompoundSemiconductor #CSmagazine #CS #Semiconductor #ASGARD #MIDGARD https://lnkd.in/e_wUpN9k https://lnkd.in/e39RsYQS

Less than three weeks to: 𝐂𝐡𝐚𝐫𝐚𝐜𝐭𝐞𝐫𝐢𝐬𝐢𝐧𝐠 𝐬𝐞𝐦𝐢𝐜𝐨𝐧𝐝𝐮𝐜𝐭𝐨𝐫 𝐦𝐚𝐭𝐞𝐫𝐢𝐚𝐥𝐬 𝐛𝐲 𝐨𝐩𝐭𝐢𝐜𝐚𝐥 𝐦𝐢𝐜𝐫𝐨𝐬𝐩𝐞𝐜𝐭𝐫𝐨𝐬𝐜𝐨𝐩𝐢𝐞𝐬 📅17th October 2024 | 𝑈𝑛𝑑𝑒𝑟𝑠𝑡𝑎𝑛𝑑 𝑡ℎ𝑒 𝑑𝑖𝑓𝑓𝑒𝑟𝑒𝑛𝑡 𝑐ℎ𝑎𝑙𝑙𝑒𝑛𝑔𝑒𝑠 𝑡ℎ𝑎𝑡 𝑅𝑎𝑚𝑎𝑛 𝑚𝑖𝑐𝑟𝑜𝑠𝑐𝑜𝑝𝑦 𝑠𝑜𝑙𝑣𝑒𝑠, 𝑡ℎ𝑒 𝑐𝑎𝑝𝑖𝑡𝑎𝑙-𝑔𝑎𝑖𝑛 𝑜𝑓 𝑅𝑎𝑚𝑎𝑛 𝑚𝑖𝑐𝑟𝑜𝑠𝑐𝑜𝑝𝑦 𝑓𝑜𝑟 𝑡ℎ𝑒 𝑠𝑒𝑚𝑖𝑐𝑜𝑛𝑑𝑢𝑐𝑡𝑜𝑟 𝑖𝑛𝑑𝑢𝑠𝑡𝑟𝑦, 𝑎𝑛𝑑 𝑤ℎ𝑦 𝑅𝑎𝑚𝑎𝑛 𝑚𝑖𝑐𝑟𝑜𝑠𝑐𝑜𝑝𝑦 𝑖𝑠 𝑎𝑛 𝑖𝑑𝑒𝑎𝑙 𝑡𝑒𝑐ℎ𝑛𝑖𝑞𝑢𝑒 𝑓𝑜𝑟 𝑠𝑒𝑚𝑖𝑐𝑜𝑛𝑑𝑢𝑐𝑡𝑜𝑟 𝑚𝑎𝑡𝑒𝑟𝑖𝑎𝑙𝑠 𝑐ℎ𝑎𝑟𝑎𝑐𝑡𝑒𝑟𝑖𝑠𝑎𝑡𝑖𝑜𝑛. Calling all #scientists working on #semiconductor materials developments and those looking for new methods of #materialcharacterisation for semiconductors, as well as semiconductors, #photovoltaics, and #2Dmaterials #Raman users. The growing industrialisation of semiconductor materials requires technologies to characterise their properties. Optical #microspectroscopic platforms like Raman microscopes offer both physical and #chemical information in one system enabling #process qualification, #wafer uniformity assessment, or defects inspection of wafers. This can also be applied to new materials characterisation. This webinar will highlight how #Photoluminescence and Raman microscopies can address semiconductor challenges, showing how the combination of #microspectroscopies with #AFM (Atomic Force Microscopy) can provide nano resolution and deeper understanding of these structures. Register here: https://lnkd.in/ew-MjW5M #HORIBA