Saudi Arabia’s KAUST Makes Breakthrough to Boost Solar Cell Efficiency and Durability

Saudi Arabia’s KAUST Makes Breakthrough to Boost Solar Cell Efficiency and Durability
TT

Saudi Arabia’s KAUST Makes Breakthrough to Boost Solar Cell Efficiency and Durability

Saudi Arabia’s KAUST Makes Breakthrough to Boost Solar Cell Efficiency and Durability

Researchers at Saudi Arabia’s King Abdullah University of Science and Technology (KAUST) have made a significant breakthrough in solar energy technology by developing a novel method to boost the performance and stability of perovskite silicon tandem solar cells.

The research team, led by Professor Stefaan De Wolf at the KAUST Photovoltaics Laboratory, discovered a way to significantly improve the efficiency and durability of these solar cells by introducing a chemical cation called tetrahydrotriazinium into the perovskite material, reported the Saudi Press Agency on Tuesday.

De Wolf said that these cells have undergone testing under conditions that replicate the intense light and heat of the Arabian Peninsula, which indicates that they can function effectively in environments with extreme climatic conditions where they might be required to operate.

Published in the journal Science, a leading peer-reviewed academic journal that covers a wide range of scientific disciplines, the method demonstrated that tetrahydrotriazinium strengthens the perovskite crystal structure by increasing hydrogen bond formation.

According to the journal, this enhancement substantially boosts power conversion efficiency and resistance to degradation caused by factors like intense sunlight and heat.

De Wolf emphasized the team's commitment to further enhancing the technology's performance and reducing costs through ongoing research. While the potential for commercialization is substantial, partnerships are essential to scale production and bring this innovative technology to market, he said.

This groundbreaking research represents a major step forward in developing affordable and sustainable solar energy solutions.



TikTok Faces US Ban Deadline as Users Brace for Fallout

A social media influencer films a video for his new Xiaohongshu, also known as RedNote, after leaving TikTok, in Times Square in New York City, US, January 16, 2025. REUTERS/Brendan McDermid/File Photo
A social media influencer films a video for his new Xiaohongshu, also known as RedNote, after leaving TikTok, in Times Square in New York City, US, January 16, 2025. REUTERS/Brendan McDermid/File Photo
TT

TikTok Faces US Ban Deadline as Users Brace for Fallout

A social media influencer films a video for his new Xiaohongshu, also known as RedNote, after leaving TikTok, in Times Square in New York City, US, January 16, 2025. REUTERS/Brendan McDermid/File Photo
A social media influencer films a video for his new Xiaohongshu, also known as RedNote, after leaving TikTok, in Times Square in New York City, US, January 16, 2025. REUTERS/Brendan McDermid/File Photo

TikTok buzzed with nervous anticipation across the US on Saturday as a looming federal ban threatened to sever access to the Chinese-owned app that has captivated nearly half of all Americans, powered small businesses and shaped online culture.

The company said late Friday that it will go dark in the United States on Sunday unless President Joe Biden's administration provides assurances to companies like Apple and Google that they will not face enforcement actions when a ban takes effect.

The ban would be enacted under a law signed by President Joe Biden in April and mark the first US shutdown of a major social media app -- with TikTok boasting about 170 million domestic users and an estimated $20 billion in 2025 revenue.

The platform has until Sunday to cut ties with its China-based parent ByteDance or shut down its US operation to resolve concerns it posed a threat to national security.

Supreme Court justices upheld the ban on Friday in a unanimous decision and a White House statement suggested Biden would not take any action to save TikTok before the deadline.

Without a decision by Biden to formally invoke a 90-day delay in the deadline, companies providing services to TikTok or hosting the app could face legal liability. It is not clear if TikTok's business partners, including Apple, Alphabet's Google and Oracle, will continue doing business with it before Trump is inaugurated on Monday, according to Reuters.

Uncertainty over the app's future had sent users - mostly made up of younger people - scrambling to alternatives including China-based RedNote. Rivals Meta and Snap had also seen their shares rise this month ahead of the ban, as investors bet on an influx of users and ad dollars.

Marketing firms reliant on TikTok have rushed to prepare contingency plans this week in what one executive described as a "hair on fire" moment after months of conventional wisdom saying that a solution would materialize to keep the app running.

There have been signs that TikTok could make a comeback under incoming US President Donald Trump, who wants to pursue a "political resolution" of the issue and had last month urged the Supreme Court to pause implementation of the ban.

Trump said on Friday the decision on the future of the TikTok app will be up to him, but he did not provide any detail about what steps he would take. Media reports have said that he was considering an executive order that would suspend the enforcement of the TikTok sale-or-ban law for 60 to 90 days.

TikTok CEO Shou Zi Chew plans to attend the US presidential inauguration on Jan. 20 and sit among high-profile guests invited by Trump, a source told Reuters.

Suitors including former Los Angeles Dodgers owner Frank McCourt have expressed interest in the fast-growing business that analysts estimate could be worth as much as $50 billion. Media reports say Beijing has also held talks about selling TikTok's US operations to billionaire and Trump ally Elon Musk, though the company has denied that.

Privately held ByteDance is about 60% owned by institutional investors such as BlackRock and General Atlantic, while its founders and employees own 20% each. It has more than 7,000 employees in the US.