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NanoManufacturing

Michael De Volder, Engineering Department - IfM
 

Wed 21 May 14:00: Title to be confirmed

http://talks.cam.ac.uk/show/rss/5408 - Wed, 23/04/2025 - 20:07
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Wed 11 Jun 13:00: Title to be confirmed

http://talks.cam.ac.uk/show/rss/5408 - Wed, 23/04/2025 - 16:25
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Wed 23 Apr 17:00: bla bla

http://talks.cam.ac.uk/show/rss/5408 - Wed, 23/04/2025 - 16:01
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Unlocking High-Performance Photocapacitors for Edge Computing in Low-Light Environments

http://feeds.rsc.org/rss/ee - Wed, 23/04/2025 - 15:41
Energy Environ. Sci., 2025, Accepted Manuscript
DOI: 10.1039/D5EE01052G, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Natalie Flores Diaz, Francesca De Rossi, Timo Keller, George Harvey Morritt, Zaida Perez- Bassart, A. Lopez-Rubio, Maria Fabra Rovira, Richard Freitag, Alessio Gagliardi, Francesca Fasulo, Ana Belen Munoz-Garcia, Michele Pavone, Hamed Javanbakht Lomeri, Sandy Sánchez, Michael Grätzel, Francesca Brunetti, Marina Freitag
Driving continuous, low-power artificial intelligence (AI) in the Internet of Things (IoT) requires reliable energy harvesting and storage under indoor or low-light conditions, where batteries face constraints such as finite...
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High‐Throughput Multiplexed Plasmonic Color Encryption of Microgel Architectures via Programmable Dithering‐Mask Flow Microlithography

This study introduces a scalable method for creating microgel structures with multiplexed hidden plasmonic colors via in situ grown AgNPs in porosity modulated hydrogel network. Utilizing advanced maskless flow microlithography and dithering-mask techniques, high-resolution and large-scale production of multiplexed plasmonic color encrypted microstructures are achieved and realized. A deep-learning analysis validates the fidelity between encrypted and decrypted colors, featuring significant potential for secure data storage and anti-counterfeiting.


Abstract

Silver nanoparticles (AgNPs) are known for their unique plasmonic colors and interaction with light, making them ideal for color printing and data encoding. Traditional methods like electron beam lithography (EBL) and focused ion beam (FIB) milling, however, suffer from low throughput and high costs. In this paper, a scalable and cost-efficient method is introduced for producing multiplexed plasmonic colors by in situ photoreducing AgNPs within microgel architectures with controlled porosity. Utilizing a digital micro-mirror device (DMD)-based flow microlithography system combined with a programmable dithering-mask technique, the high-throughput synthesis of shape or barcoded microparticles is facilitated, along with large-scale, high-resolution images embedded with hidden multiplexed plasmonic colors. This approach allows for a hidden multiplexed plasmonic color code library, significant enhancing the encoding capacity of barcode microparticles from 33 to 303 (a 1000-fold increase). Additionally, quantitative agreement is achieved between chemically encrypted and optically decrypted plasmonic colors using a deep learning classifier. Moreover, the method also supports the production of large scale (>5.6 × 5.6 cm2), high-resolution (>300 dpi) microgel arrays encrypted with multiple plasmonic colors in under 30 min. The multiplexed plasmonic coloration strategy in microgel architectures paves a new way for hidden data storage, secure optical labeling, and anti-counterfeiting technologies.

Issue Information

Advanced Materials, Volume 37, Issue 16, April 23, 2025.

Photo‐Induced Bandgap Engineering of Metal Halide Perovskite Quantum Dots In Flow (Adv. Mater. 16/2025)

Metal Halide Perovskite Quantum Dots

In article number 2419668, Milad Abolhasani and co-workers present a photo-induced anion exchange reaction (PIAER) approach for efficient bandgap tuning of lead halide perovskite (LHP) nanocrystals (NCs). Leveraging a photo-flow microreactor, the study elucidates the PIAER mechanism in LHP NCs. Furthermore, by introducing a thiol-based additive, the study demonstrates the first successful PIAER conversion of CsPbBr3 NCs into high-performing CsPbI3 NCs. The cover design was created in collaboration with SciFig Studio.


Co‐Enriched High Entropy Oxides for Efficient Continuous Electrochemical Methane Conversion: Catalytic Performance and Sustainability Insights (Adv. Mater. 16/2025)

Electrochemical Methane Conversion

In article number 2418767, Jun Hyuk Moon, Bor-Yih Yu, and co-workers demonstrate a Co-enriched high-entropy oxide (HEO) electrocatalyst for efficient electrochemical methane conversion. By tailoring the elemental composition, the Co-rich HEO achieves high catalytic activity and selectivity, enabling continuous ethanol production under ambient conditions. The unique electronic structure of Co sites enhances methane activation, facilitating sustained conversion in a continuous flow electrolyzer. This study highlights the potential of high-entropy oxide catalysts for scalable and sustainable methane utilization.


Bio‐Inspired, Miniaturized Magnetic Heart Valve System for Superior Performance Cardiovascular Simulator (Adv. Mater. 16/2025)

Programmable Bio-Inspired Magnetic Heart Valve System

Soft magnetic valve (SMV) system introduces a miniaturized, biomimetic magnetic heart valve inspired by the human aortic valve, designed for precise cardiovascular simulations. The valve, composed of a silicone elastomer embedded with neodymium magnetic micro-particles, responds dynamically to controlled magnetic fields generated by electromagnets. This programmable system replicates diverse blood pressure waveforms by regulating fluid flow and pressure with high accuracy. With a compact and versatile design, the artificial valve system offers potential applications in clinical trials, biomimetic robotics, and advanced biomedical research. More details can be found in article number 2419504 by Jeongmin Yoo, Gooyoon Chung, and Yoonseok Park.


Ultrafast and Universal Synthetic Route for Nanostructured Transition Metal Oxides Directly Grown on Substrates (Adv. Mater. 16/2025)

Nanostructured Transition Metal Oxides

In article number 2418407, Hyun Ho Kim and co-workers present a universal and ultrafast method for synthesizing nanostructured transition metal oxides (NTMOs) through the induced solidification of microdroplets, enabling rapid production within a minute. Since NTMOs can be directly grown on substrates in ambient air without requiring high-purity carrier gases, this approach facilitates industrial-friendly mass production.


Wed 23 Apr 17:00: bla bla

http://talks.cam.ac.uk/show/rss/5408 - Wed, 23/04/2025 - 13:04
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Fri 09 May 14:00: Title to be confirmed

http://talks.cam.ac.uk/show/rss/5408 - Wed, 23/04/2025 - 11:58
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