TPU geologists and chemists propose novel naturally-occurring mineral-based material for optoelectronic applications.
In a groundbreaking discovery, a team of researchers, in collaboration with their international counterparts, has unearthed a remarkable photoresponse phenomenon in a two-dimensional semiconductor, arsenic trisulfide (As2S3), sourced from a Russian quarry mineral. This material exhibits a remarkable photoresponse effect even at low light intensities, which opens up prospects for the development of energy-efficient optoelectronic devices.
TPU geologists and chemists propose novel naturally-occurring mineral-based material for optoelectronic applications.
In a groundbreaking discovery, a team of researchers, in collaboration with their international counterparts, has unearthed a remarkable photoresponse phenomenon in a two-dimensional semiconductor, arsenic trisulfide (As2S3), sourced from a Russian quarry mineral. This material exhibits a remarkable photoresponse effect even at low light intensities, which opens up prospects for the development of energy-efficient optoelectronic devices.
Telegram has become more interventionist over time, and has steadily increased its efforts to shut down these accounts. But this has also meant that the company has also engaged with lawmakers more generally, although it maintains that it doesn’t do so willingly. For instance, in September 2021, Telegram reportedly blocked a chat bot in support of (Putin critic) Alexei Navalny during Russia’s most recent parliamentary elections. Pavel Durov was quoted at the time saying that the company was obliged to follow a “legitimate” law of the land. He added that as Apple and Google both follow the law, to violate it would give both platforms a reason to boot the messenger from its stores. "We as Ukrainians believe that the truth is on our side, whether it's truth that you're proclaiming about the war and everything else, why would you want to hide it?," he said. The fake Zelenskiy account reached 20,000 followers on Telegram before it was shut down, a remedial action that experts say is all too rare. The Russian invasion of Ukraine has been a driving force in markets for the past few weeks. The Securities and Exchange Board of India (Sebi) had carried out a similar exercise in 2017 in a matter related to circulation of messages through WhatsApp.
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