Solution-processed organic solar modules with 10% power conversion efficiency

A new formulation for manufacturing organic solar panels exhibits an impressive, certified power conversion efficiency to help bring this technology closer to commercialization. Organic solar cells are a promising alternative to conventional PV solar panels, offering lighter-weight materials, flexibility, transparency, and low-cost manufacturing. They use organic molecules such as conductive polymers or small molecules to […]

How much will Africa’s growing power grid rely on renewable energy?

solar thermal power plant in Morocco

Africa’s electricity capacity is expected to double by 2030 — and with the rapidly dropping cost of renewable energy technologies, the continent might seem poised to go green. But a new analysis suggests that fossil fuels will still dominate Africa’s energy mix over the next decade. The scientists used a machine learning approach that analyzes […]

Seawater as an electrical cable !? Wireless power transfers in the ocean

IMAGE: Underwater drone (top left), power supply station (bottom left), drone parked on the power supply station installed on the ocean floor for battery charging (right) view more  Credit: COPYRIGHT (C) TOYOHASHI UNIVERSITY OF TECHNOLOGY. ALL RIGHTS RESERVED. Overview: Associate professor Masaya Tamura, Kousuke Murai (who has completed the first term of his master’s program), and […]

Power boost thanks to gold lamellae

IMAGE: Ultra-thin gold lamellae drastically amplify the incoming terahertz pulses (red) in the underlying graphene layer, enabling efficient frequency multiplication. view more  Credit: HZDR/Werkstatt X On the electromagnetic spectrum, terahertz light is located between infrared radiation and microwaves. It holds enormous potential for tomorrow’s technologies: Among other things, it might succeed 5G by enabling extremely fast […]

Researchers explore population size, density in rise of centralized power in antiquity — ScienceDaily

Early populations shifted from quasi-egalitarian hunter-gatherer societies to communities governed by a centralized authority in the middle to late Holocene, but how the transition occurred still puzzles anthropologists. A University of Maine-led group of researchers contend that population size and density served as crucial drivers. Anthropology professor Paul “Jim” Roscoe led the development of Power […]

Alpha animals must bow to the majority when they abuse their power

Vulturine guineafowl occur in the savannahs of Kenya. The birds live in groups, with a strict dominance hierarchy. Credit: © Danai Papageorgiou Many animal groups decide where to go by a process similar to voting, allowing not only alphas to decide where the group goes next but giving equal say to all group members. But, […]

Solar power stations in space could be the answer to our energy needs

It sounds like science fiction: giant solar power stations floating in space that beam down enormous amounts of energy to Earth. And for a long time, the concept – first developed by the Russian scientist, Konstantin Tsiolkovsky, in the 1920s – was mainly an inspiration for writers. A century later, however, scientists are making huge strides […]

New green materials could power smart devices using ambient light — ScienceDaily

We are increasingly using more smart devices like smartphones, smart speakers, and wearable health and wellness sensors in our homes, offices, and public buildings. However, the batteries they use can deplete quickly and contain toxic and rare environmentally damaging chemicals, so researchers are looking for better ways to power the devices. One way to power […]

Scientists design novel transparent solar cells using thin silicon films, with efficient power generation — ScienceDaily

Today, the imminent climate change crisis demands a shift from conventionally used fossil fuels to efficient sources of green energy. This has led to researchers looking into the concept of “personalized energy,” which would make on-site energy generation possible. For example, solar cells could possibly be integrated into windows, vehicles, cellphone screens, and other everyday […]