Sprinkle of chili compound boosts perovskite solar cell efficiency

A touch of chili peppers can spice up just about any dish – and maybe, it turns out, even solar cells. Researchers have now found that adding a sprinkle of capsaicin to a perovskite precursor can improve the efficiency of solar cells.Continue ReadingCa… Continue reading Sprinkle of chili compound boosts perovskite solar cell efficiency

World’s most energy efficient vehicle rolls on to new heights

Electric vehicles have come a long way in the last decade or so, moving people from A to B with ever-improving efficiency, but none quite match the levels of a student-built railroad car called Eximus IV. The vehicle has taken to the tracks at the annu… Continue reading World’s most energy efficient vehicle rolls on to new heights

DIY Relay Module Saves Time

As any programmer could tell you, there’s significant value in automating a process that is performed often enough. The more times that process is used, the more it makes sense to automate it or at least improve its efficiency. This rule isn’t limited to software though; improvements to hardware design …read more

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Black silicon photodetector hits record-breaking 132% efficiency

An artist's illustration of UV light triggering electron multiplication in nanostructured black silicon

Researchers at Aalto University have developed a photovoltaic device that has an external quantum efficiency of 132 percent. This impossible-sounding feat was achieved using nanostructured black silicon, and could represent a major breakthrough for solar cells and other photodetectors.

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Bulky molecule makes more stable perovskite solar cells

Perovskite is quickly emerging as a frontrunner for more efficient solar cells, but it has one major problem – it’s a bit too fragile. Now, a team of engineers led by Purdue University has found that adding one bulky molecule can stabilize the material… Continue reading Bulky molecule makes more stable perovskite solar cells

Two new solar cells break records, including highest efficiency ever

Solar cells are constantly improving on the road to maximum efficiency. Now, three records have been broken by two different devices, including one that pushes the highest overall solar conversion efficiency towards the 50-percent mark.Continue Reading… Continue reading Two new solar cells break records, including highest efficiency ever

An Open Source Ebike

In the ebike world, there are two paths. The first is a homemade kit bike with motors and controllers from China. The second is a prebuilt bike from a manufacturer like Giant, with motors and controllers from China, which will be half as fast and cost three times as much. …read more

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How Efficient Can An Airplane Be? The Celera 500L Sets To Find Out

One of the current hype trends is the supposedly imminent revolution in air transport. So many companies showing digital renderings and mockups to illustrate their own utopic vision for the future, reaching fevered pitch at events like CES 2020. But aviation has a long history of machinery that turned out …read more

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Where The Work Is Really Done – Casual Profiling

Once a program has been debugged and works properly, it might be time to start optimizing it. A common way of doing this is a method called profiling – watching a program execute and counting the amount of computing time each step in the program takes. This is all well …read more

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Eximus IV claims world's most energy efficient vehicle title

The Eximus IV neither makes steam nor does burnouts, but hey, this sure is a dramatic ...

Once a year, the Delsbo Electric contest in Sweden challenges students to create and improve on the world’s most energy-efficient vehicles. This year’s champ, the Eximus IV, smashed the competition and all previous records with an electric equivalent of 687 MPGe (0.34 l/100km).

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Category: Urban Transport

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