Tootfinder

Enhanced intraband absorption in two-step photon upconversion solar cells with a double-tunnel-junction structure
Koichiro Matsuzawa, Shigeo Asahi, Takashi Kita
https://arxiv.org/abs/2509.04195

Enhanced intraband absorption in two-step photon upconversion solar cells with a double-tunnel-junction structure
Two-step photon upconversion solar cells (TPU-SCs) belong to the class of solar cells that in principle can exceed the Shockley--Queisser limit for single-junction solar cells. A TPU-SC basically consists of a wide-gap and a narrow-gap semiconductor layer, where intraband absorption of infrared (IR) photons by electrons accumulated at the conduction-band-edge discontinuity leads to an increase in the output current and voltage. This IR-induced upconversion process enables a better utilization o…

OnePlus ends its five-year partnership with camera company Hasselblad and plans to develop its own imaging engine called DetailMax Engine for upcoming phones (Dominic Preston/The Verge)
https://www.theverge.com/news/772369/oneplus-and-hasselblad-are-parting-ways

OnePlus and Hasselblad are parting ways
But Oppo and Hasselblad seemingly aren’t.

When asked about the upcoming Mexican Independence Day events, Chicago's mayor Brandon Johnson on Friday encouraged residents to come together and celebrate.
"I'm not intimidated and no one should be," he said.

Whelp, just spent the last few hours reviewing candidates for our boys' school board, and voting, and then did the same to prepare for the upcoming local elections... which, of course, shows how little one can really glean about a candiate's character from 2 minute videos... will have to investigate further: they mostly talk a good game, but it's hard to know how consequential they have been in past roles and are likely to be now. I fear few folks will make the time to do their d…

Anybody want to spend a few minutes drawing up a sign / logo for "Andrew's Back Room Semiconductor FA Lab" that I can use (with credit) in an upcoming blog or something?
The sketchier the better, I'd love to see what people come up with. "Literal sharpie on a piece of cardboard" is the level of effort I'm looking for.

An interview with Michele Mulroney, the new president of WGA West, about helping bring Jimmy Kimmel back, plans for upcoming contract negotiations, and more (Wendy Lee/Los Angeles Times)
https://www.latimes.com/entertainment-arts/busin…

The Writers Guild helped bring Kimmel back. Here's what its new president plans next
Michele Mulroney was elected WGA West president, a key role during next year's negotiations with major studios.

Vaccines save lives – not just our own (#LongCovid), but also those of the people around us. It's our solidary civic duty to protect high-risk patients from being infected by us. #CovidIsNotOver
So, if you're currently in Germany, please take part in the upcoming Long Night …

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Temat lunatyzmu stale występował i nigdy nie był kwestionowany w XVI wieku; częsty jeszcze w wieku XVII, powoli zanika; w roku 1707 Le François wysuwa tezę: „Estne aliquod lunae in corpora humana imperium?” („Czy księżyc ma jakąś władzę nad ciałem ludzkim?”); po długiej dyskusji Fakultet daje odpowiedź negatywną.” Wszakże w wieku XVIII rzadko cytowano
księżyc pośród przyczyn dodatkowych czy choćby ubocznych obłędu. Pod koniec stulecia motyw jednak pojawia się zno…