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AUSTIN, Texas--(BUSINESS WIRE)--May 23, 2023--

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Scientists have achieved a new world record for a next-generation solar cell, which holds the promise for novel applications like building-integrated and window solar panels. The breakthrough follows two years of research from the Hong Kong Polytechnic University into organic solar cells (OSCs), which until now have been too inefficient and costly to be used widely in practical applications. The research team invented a new technique to boost the stability of OSCs, achieving a power-conversion efficiency of 19.3 per cent. “The new finding will make OSC research an exciting field, and this will likely create tremendous opportunities in applications like portable electronics and building-integrated photovoltaics,” said Li Gang, a professor of energy conversion technology at Hong Kong Polytechnic University. “This is a very encouraging result for the long-standing research on OSCs that I have conducted over the past two decades. We have already achieved better OSC efficiency and this will subsequently help accelerate the applications of solar energy.” Professor Li and his team believe an efficiency rate above 20 per cent is now achievable using their new technique. The research is detailed in a study, titled ‘19.3% Binary Organic Solar Cell and Low Non-Radiative Recombination Enabled by Non-Monotonic Intermediate State Transition’, published in the scientific journal Nature Communications. The 19.3 per cent efficiency record is still a long way off other solar cell technologies, with researchers passing the 30 per cent barrier last year with a tandem design that used the so-called “miracle material” perovskite. OSCs are more lightweight and flexible than traditional silicon-based solar panels, as they consist of thin layers of organic semiconducting materials. The materials used are more environmentally friendly and 1,000-times thinner than silicon solar cells, meaning they have the potential to be vastly cheaper. They are also semi-transparent, allowing them to be used not just within building materials, but also on windows. Dozens of startups are already working on novel applications for harvesting solar energy, such as London-based Filia, which integrates solar technology into blackout blinds. California-based Ubiquitous Energy raised more than $30 million last year to push forward its vision of turning skyscrapers into “vertical solar farms” through the development of windows capable of converting sunlight into electricity. The firm aims to begin production at some point next year following further research and development. Read More Electric car range set to double with first production of breakthrough battery Solar panel efficiency to increase 50% with first production of ‘miracle’ tandem cells Solar panel efficiency to increase 50% with first ‘miracle’ tandem cells Elon Musk’s private jet lands in China for billionaire’s first visit in three years WhatsApp set to add major features including a new username system

The UK, US and other governments have released plans they hope will stop artificial intelligence being hijacked by rogue actors. The major agreement – hailed as the first of its kind – represents an attempt to codify rules that will keep AI safe and ensure that systems are built to be secure by design. In a 20-page document unveiled Sunday, the 18 countries agreed that companies designing and using AI need to develop and deploy it in a way that keeps customers and the wider public safe from misuse. The agreement is non-binding and carries mostly general recommendations such as monitoring AI systems for abuse, protecting data from tampering and vetting software suppliers. Still, the director of the U.S. Cybersecurity and Infrastructure Security Agency, Jen Easterly, said it was important that so many countries put their names to the idea that AI systems needed to put safety first. “This is the first time that we have seen an affirmation that these capabilities should not just be about cool features and how quickly we can get them to market or how we can compete to drive down costs,” Easterly told Reuters, saying the guidelines represent “an agreement that the most important thing that needs to be done at the design phase is security.” The agreement is the latest in a series of initiatives - few of which carry teeth - by governments around the world to shape the development of AI, whose weight is increasingly being felt in industry and society at large. In addition to the United States and Britain, the 18 countries that signed on to the new guidelines include Germany, Italy, the Czech Republic, Estonia, Poland, Australia, Chile, Israel, Nigeria and Singapore. The framework deals with questions of how to keep AI technology from being hijacked by hackers and includes recommendations such as only releasing models after appropriate security testing. It does not tackle thorny questions around the appropriate uses of AI, or how the data that feeds these models is gathered. The rise of AI has fed a host of concerns, including the fear that it could be used to disrupt the democratic process, turbocharge fraud, or lead to dramatic job loss, among other harms. Europe is ahead of the United States on regulations around AI, with lawmakers there drafting AI rules. France, Germany and Italy also recently reached an agreement on how artificia lintelligence should be regulated that supports “mandatory self-regulation through codes of conduct” for so-called foundation models of AI, which are designed to produce a broad range of outputs. The Biden administration has been pressing lawmakers for AI regulation, but a polarized U.S. Congress has made little headway in passing effective regulation. The White House sought to reduce AI risks to consumers, workers, and minority groups while bolstering national security with a new executive order in October. Additional reporting by Reuters Read More Putin targets AI as latest battleground with West AI breakthrough could help us build solar panels out of ‘miracle material’ OpenAI co-founder Sam Altman ousted as CEO YouTube reveals bizarre AI music experiments AI-generated faces are starting to look more real than actual ones Children are making indecent images using AI image generators, experts warn

AUSTIN, Texas--(BUSINESS WIRE)--Aug 29, 2023--