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PolyU researchers create 2D all-organic perovskites and demonstrate potential use in 2D electronics

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4 months ago

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HONG KONG, May 6, 2024 /PRNewswire/ — Perovskites are among the most researched topics in materials science. Recently, a research team led by Prof. LOH Kian Ping, Chair Professor of Materials Physics and Chemistry and Global STEM Professor of the Department of Applied Physics of The Hong Kong Polytechnic University (PolyU), Dr Kathy LENG, Assistant Professor of the same department, together with Dr Hwa Seob CHOI, Postdoctoral Research Fellow and the first author of the research paper, has solved an age-old challenge to synthesise all-organic two-dimensional perovskites, extending the field into the exciting realm of 2D materials. This breakthrough opens up a new field of 2D all-organic perovskites, which holds promise for both fundamental science and potential applications. This research titled “Molecularly thin, two-dimensional all-organic perovskites” was recently published in the prestigious journal Science.

Perovskites are named after their structural resemblance to the mineral calcium titanate perovskite, and are well known for their fascinating properties that can be applied in wide-ranging fields such as solar cells, lighting and catalysis. With a fundamental chemical formula of ABX3, perovskites possess the ability to be finely tuned by adjusting the A and B cations as well as the X anion, paving the way for the development of high-performance materials.
While perovskite was first discovered as an inorganic compound, Prof. Loh’s team has focused their attention on the emerging class of all-organic perovskites. In this new family, A, B, and X constituents are organic molecules rather than individual atoms like metals or oxygen. The design principles for creating three-dimensional (3D) perovskites using organic components have only recently been established. Significantly, all-organic perovskites offer distinct advantages over their all-inorganic counterparts, as they are solution-processible and flexible, enabling cost-effective fabrication. Moreover, by manipulating the chemical composition of the crystal, valuable electromagnetic properties such as dielectric properties, which finds applications in electronics and capacitors, can be precisely engineered.
Traditionally, researchers face challenges in the synthesis of all-organic 3D perovskites due to the restricted selection of organic molecules that can fit with the crystal structure. Recognising this limitation, Prof. Loh and his team proposed an innovative approach: synthesising all-organic perovskites in the form of 2D layers instead of 3D crystals. This strategy aimed to overcome the constraints imposed by bulky molecules and facilitate the incorporation of a broader range of organic ions. The anticipated outcome was the emergence of novel and extraordinary properties in these materials.
Validating their prediction, the team developed a new general class of layered organic perovskites. Following the convention for naming perovskites, they called it the “Choi-Loh-v phase” (CL-v) after Dr Choi and Prof. Loh. These perovskites comprise molecularly thin layers held together by forces that hold graphite layers together, the so-called van der Waals forces – hence the “v” in CL-v. Compared with the previously studied hybrid 2D perovskites, the CL-v phase is stabilised by the addition of another B cation into the unit cell and has the general formula A2B2X4.
Using solution-phase chemistry, the research team prepared a CL-v material known as CMD-N-P2, in which the A, B and X sites are occupied by CMD (a chlorinated cyclic organic molecule), ammonium and PF6− ions, respectively. The expected crystal structure was confirmed by high-resolution electron microscopy carried out at cryogenic temperature. These molecularly thin 2D organic perovskites are fundamentally different from traditional 3D minerals, they are single crystalline in two dimensions and can be exfoliated as hexagonal flakes just a few nanometres thick – 20,000 times thinner than a human hair.
The solution-processibility of 2D organic perovskites presents exciting opportunities for their application in 2D electronics. The Poly U team conducted measurements on the dielectric constants of the CL-v phase, yielding values ranging from 4.8 to 5.5. These values surpass those of commonly used materials such as silicon dioxide and hexagonal boron nitride. This discovery establishes a promising avenue for incorporating CL-v phase as a dielectric layer in 2D electronic devices, as these devices often necessitate 2D dielectric layers with high dielectric constants, which are typically scarce. Team member Dr Leng successfully addressed the challenge of integrating 2D organic perovskites with 2D electronics. In their approach, the CL-v phase was employed as the top gate dielectric layer, while the channel material consisted of atomically thin Molybdenum Sulfide. By utilising the CL-v phase, the transistor achieved superior control over the current flow between the source and drain terminals, surpassing the capabilities of conventional silicon oxide dielectric layers.
Prof. Loh’s research not only establishes an entirely new class of all-organic perovskites but also demonstrates how they can be solution-processed in conjunction with advanced fabrication technique to enhance the performance of 2D electronic devices. These developments open up new possibilities for the creation of more efficient and versatile electronic systems.
Media Contact
Ms Annie WongSenior Manager, Public AffairsTel: +852 3400 3853Email: [email protected] 

View original content:https://www.prnewswire.co.uk/news-releases/polyu-researchers-create-2d-all-organic-perovskites-and-demonstrate-potential-use-in-2d-electronics-302136395.html

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Akuvox S567G Smart Indoor Monitor Has Received Google Mobile Service Certification

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11 hours ago

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September 14, 2024

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XIAMEN, China, Sept. 13, 2024 /PRNewswire/ — Akuvox has announced its S567G, an indoor monitor powered by Android™, to have received Google GMS certification. This certification ensures full support for Google Services, allowing users to download and update apps directly from the Google Play Store, including smart home control apps. It also enhances system security, protecting against malware and unauthorized access.

GMS certification involves comprehensive testing and approval by Google or a designated 3PL lab, validating security and compatibility to ensure seamless integration within the Android ecosystem. Receiving GMS certification underscores Akuvox’s leadership in the smart intercom industry. Building on its legacy as the pioneer of Android smart intercoms, Akuvox continues to elevate its Android systems with Google’s rigorous certification, offering clients flexible and sophisticated smart intercom solutions. 
The S567G’s GMS certification ensures flawless operation with key Google apps like Chrome, Gmail, YouTube, Maps, and the Play Store. Edward Shi, Product Manager of the S567G, notes, “The positive feedback we’ve received from clients, even during testing, confirms that this device is transforming daily life. It’s more than just an intercom — it’s a versatile tool, even capable of functioning as a small TV. Our team has worked tirelessly to meet the highest standards, and I’m excited to see how it enhances smart living for our users.”
The S567G’s features extend beyond intercom functionality. With four HD speakers and a 1280 x 800 IPS LCD screen, it offers an exceptional audio-visual experience, redefining the concept of an indoor monitor. Whether for entertainment or smart home control, the S567G stands out as a versatile wall-mounted tablet, bringing innovation to every interaction.
About Akuvox
Akuvox is a global leading provider of smart intercom and smart home products and solutions. It is committed to unleashing the power of technology to improve people’s lives with better communication, greater security, and more convenience. Encompassing artificial intelligence, SIP, Android, cloud, security, and other advanced technologies, Akuvox continuously drives breakthrough changes in the industry and creatively delivers an unrivaled portfolio of smart intercom and smart home products and solutions. It has been deployed and used daily in more than 110 countries and regions, meeting customer needs in various vertical markets that range from residential to commercial, from healthcare to public safety.
Photo – https://mma.prnewswire.com/media/2504901/Akuvox_S567G_Indoor_Monitor_Has_Received_GMS_CertificationAkuvox_proudly_announced.jpg 

View original content:https://www.prnewswire.co.uk/news-releases/akuvox-s567g-smart-indoor-monitor-has-received-google-mobile-service-certification-302248219.html

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SeaBubbles Accelerates Sustainable Maritime Mobility with SmartBubble and Strategic Acquisition

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21 hours ago

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September 13, 2024

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SAINT JORIOZ, France, Sept. 13, 2024 /PRNewswire/ — SeaBubbles, French pioneer in zero-emission hydrofoils, strengthens its commitment to ecological transition with the launch of SmartBubble, new flying boat model combining cutting-edge technology with iconic design. This innovative vessel, designed to carry up to eight people at a speed of 16 knots (30 km/h), takes its passengers on a silent and environmentally friendly flight, ideal for water taxi services and urban transportation.

SmartBubble: Concentration of Technology and Design
Following the success of its first public line on Lake Annecy, where hundreds of passengers experienced the unique sensation of flying aboard The Bubble (4-seater model), SeaBubbles reaches a new milestone with the homologation of the SmartBubble (8-seater model) and its four patents, including retractable foils.
SmartBubble technology is geared towards energy efficiency. The submerged wings (foils) equipped with automatic flaps allow to fly at low speeds, saving 40% of energy required. This unique boat has just been presented afloat for the first time at the Cannes Yachting Festival.
SeaBubbles Strengthens Flight Control Expertise with Neocean Acquisition
SeaBubbles also announces the acquisition of Neocean technology, to accelerate the development of flight control expertise, specifically on “inverted T” foils. Neocean is renowned for developing the Overboat, foiling catamaran with proven stability and maneuverability.
SeaBubbles is a key player in hydrofoil navigation, technology that improves energy efficiency of boats, particularly electric ones. The flight control system is a central element of the flight experience: it is designed to ensure stable flight by dynamically and autonomously managing the mechanical inclination of the flaps on the trailing edges of the foils.
SeaBubbles: Vision for the Future
SeaBubbles’ ambition is to revolutionize urban and suburban maritime transport with more efficient and environmentally friendly boats. Examples such as the Calanques National Park, Norwegian fjords, alpine lakes or the canals of Amsterdam demonstrate a committed initiative towards the preservation of aquatic ecosystems by gradually banning the circulation of thermal boats.
“Foils significantly reduce the drag of our boats, allowing our hydrofoils to move more easily and with less energy than a conventional boat: a considerable gain in cost and energy,” explains Virginie Seurat, CEO of SeaBubbles. “The acquisition of Neocean marks a decisive turning point and prepares us for our industrialization phase. We are ready to redefine the pleasure of boating and offer boats that comply with increasingly stringent environmental standards, while offering unique sailing comfort – zero noise, zero waves, zero emissions.”
AxiCom for SeaBubbles, [email protected] 
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View original content:https://www.prnewswire.co.uk/news-releases/seabubbles-accelerates-sustainable-maritime-mobility-with-smartbubble-and-strategic-acquisition-302247900.html

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Amagi and BuyDRM Partner to Secure Streaming Video on PlayMedia’s FAST Platform GoPlay

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21 hours ago

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September 13, 2024

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NEW YORK, Sept. 13, 2024 /PRNewswire/ — Amagi, the global leader in cloud-based SaaS technology for broadcast and connected TV (CTV), today announced a partnership with BuyDRM, a leading content security services and solutions provider offering cloud-based content security for the streaming video platform GoPlay by PlayMedia. This successful collaboration with BuyDRM’s KeyOS Content Security Platform provides robust safeguards for valuable video content while allowing PlayMedia to focus on delivering high-quality video experiences to its audience without compromising security.

This partnership marks a significant step forward in addressing the evolving challenges of content security in today’s digital landscape. By combining BuyDRM’s expertise in DRM solutions with Amagi’s scalable cloud infrastructure, PlayMedia can ensure comprehensive protection for its content library against piracy and unauthorized access.
BuyDRM’s KeyOS Content Security Platform is an award-winning, studio-approved multi-DRM and watermarking content security platform for video. The KeyOS platform protects the assets of copyright holders and distributors with robust security services and solutions for high-value video content and is trusted by many of the most prominent names in media and entertainment across the globe.
Srinivasan KA, Co-Founder and Chief Revenue Officer at Amagi, said, “Our partnership with BuyDRM aligns perfectly with our endeavor to empower content creators and distributors with innovative technology. Integrating BuyDRM’s KeyOS platform into our cloud-based platform offers our customers like PlayMedia the peace of mind they need to focus on delivering exceptional content.”
“The alliance with Amagi made it possible for our mutual customer, PlayMedia, to utilize our content security offering in a cloud-based environment without sacrificing their security standards and the user experience,” said Christopher Levy, BuyDRM CEO and Co-Founder. “Both companies worked hard to empower PlayMedia with the technology needed to thrive in today’s streaming market.”
Amagi provides a complete suite of channel creation, distribution, and monetization solutions. The company’s clients include some of the world’s biggest names, including A+E Networks UK, ABS-CBN, Astro, Cox Media Group, DAZN, Globo, Lionsgate Studio, NBCUniversal, Tastemade, and VIZIO.
Amagi is exhibiting at IBC2024. Attendees can join Amagi and experience its innovative media cloud platform, which addresses unified broadcast and streaming TV workflows. Click here to book a meeting with Amagi executives.
About Amagi
Amagi is a next-generation media technology company that provides cloud broadcast and targeted advertising solutions to broadcast TV and streaming TV platforms. Amagi enables content owners to launch, distribute, and monetize live, linear channels on Free Ad-supported Streaming TV and video services platforms. Amagi also offers 24×7 cloud-managed services, bringing simplicity, advanced automation, and transparency to all broadcast operations. Overall, Amagi supports 800+ content brands, 800+ playout chains, and 5,000+ channel deliveries on its platform in over 150 countries. Amagi has a presence in New York, Los Angeles, Toronto, Mexico City, London, Paris, Sydney, Seoul, and Singapore, broadcast operations in New Delhi, and innovation centers in Bengaluru, Zagreb, and Łódź.
About BuyDRM
BuyDRM™ is a leading global provider of content security services for the entertainment, education, enterprise, and hospitality industries. BuyDRM’s KeyOS content security platform powers many of the largest brands in media and technology. With decades of market-leading experience implementing commercial content security solutions and media technologies, BuyDRM has amassed substantial success stories for many of today’s largest brands such as ABC (Australian Broadcasting Corporation), Daily Rounds, Deluxe Digital, EPIX, FuboTV, POPS Singapore, Rakuten Viki, Redbox, Roku, Samsung TV+, SBS Australia, Showtime, Sinclair Digital, Soundcloud, Sportradar, TubiTV and ViaPlay.
For more information, please visit www.buydrm.com.
Amagi Contact:
Aashish WashikarDirector – Corporate Communications Email: [email protected]
Photo: https://mma.prnewswire.com/media/2505092/Amagi_BuyDRM.jpg
 

View original content:https://www.prnewswire.co.uk/news-releases/amagi-and-buydrm-partner-to-secure-streaming-video-on-playmedias-fast-platform-goplay-302247802.html

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