Lifeboat Foundation

A collaborative effort between the University of Cordoba and the Max Planck Institute for Solid State Research (Germany) is making progress on the design of a solar battery made from an abundant, non-toxic and easily synthesized material composed of 2D carbon nitride. The work is published in the journal Advanced Energy Materials.

Solar energy is booming. The improvement of solar technology’s capacity to capture as much light as possible, convert it into energy and make it available to meet energy needs is key in the ecological transition towards a more sustainable use of energy sources.

In the process between the collection of light by the solar cell and the on-demand use of energy by household appliances, for example, storage plays a crucial role since the availability of solar energy has an inherent intermittency.

China has long been touted as a revolutionary when it comes to wind power. Earlier this year, it was reported that the country had begun construction of a wind farm using what were then hailed as the largest turbines ever seen, each with a capacity of 16 megawatts. Now, a new milestone has been reached, with the successful switch-on of a turbine with a rotor diameter over twice the length of a football field.

China Three Gorges Corporation announced that the 16-megawatt MySE 16–260 turbine had been successfully installed at the company’s offshore wind farm near Fujian Province on July 19. The behemoth is 152 meters (500 feet) tall, and each single blade is 123 meters (403 feet) and weighs 54 tons. This means that the sweep of the blades as they rotate covers an area of 50,000 square meters (nearly 540,000 square feet).

It’s the first time such a large turbine has been hooked up to a commercial grid.

NASA’s Juno spacecraft will get closer than ever before to Jupiter’s fiery moon, Io, this weekend.

On Sunday (July 30), the solar-powered mission will come within 13,700 miles (22,000 km) of Io’s volcanic surface. This Jovian satellite is just slightly larger than Earth’s moon, making it the fourth largest moon in our solar system.

A new solar-powered high-altitude drone has successfully navigated a stratospheric test, opening the door to a new set of possibilities for unmanned vehicles, not least in modern warfare.

The PHASA-35 solar and battery-powered unmanned aerial system reached an altitude of 66,000 feet during a 24-hour test flight launched from New Mexico in June, British defense giant BAE Systems said in mid-July.

The stratospheric test, which comes after the system’s maiden flight back in 2020, “marks a significant milestone” in the development program started in 2018, BAE said in a press release.

Using the full capabilities of the Quantinuum H1-1 quantum computer, researchers from the Department of Energy’s Oak Ridge National Laboratory not only demonstrated best practices for scientific computing on current quantum systems but also produced an intriguing scientific result.

By modeling singlet fission —in which absorption of a single photon of light by a molecule produces two excited states —the team confirmed that the linear H₄ molecule’s energetic levels match the fission process’s requirements. The linear H₄ molecule is, simply, a molecule made of four hydrogen atoms arranged in a linear fashion.

A molecule’s energetic levels are the energies of each quantum state involved in a phenomenon, such as singlet fission, and how they relate and compare with one another. The fact that the linear molecule’s energetic levels are conducive to singlet fission could prove to be useful knowledge in the overall effort to develop more efficient solar panels.

With the aim of allowing astronauts to live off the land as much as possible when they return to the Moon, NASA has awarded Blue Origin a US$35-million Tipping Point contract to develop the company’s Blue Alchemist process to make solar cells out of lunar soil.

The biggest bottleneck to establishing a permanent human presence on the Moon and beyond is the staggering cost of sending equipment and supplies from Earth. NASA and other space agencies believe that the best way to overcome this is to use local resources as much as possible to manufacture what’s needed.

Under development since 2021, Blue Alchemist is an example of this. The basic concept is to develop a complete process that takes the lunar soil, more formally known as the regolith, at one end and spits out complete solar cells and other products at the other.

“O poplar tree, O poplar tree, how carbon-dense are thy branches …”

Trees are a major tool in our fight against climate change by sucking up carbon dioxide, but one company is taking them a step further: genetically engineering trees to sequester even more carbon. U.S. climate technology startup Living Carbon is developing genetically engineered seedlings of a hybrid poplar that it says can accumulate up to 53% more biomass than control plants and thereby absorb 27% more carbon.

Plants use sunlight to turn water and carbon dioxide into oxygen and sugar, a process known as photosynthesis. Living Carbon says its trees, a hybrid of the common aspen (Populus tremula) and white poplar (P. alba), can do it better with genetic changes to boost its photosynthetic performance.

A new approach to developing semiconductor materials at tiny scales could help boost applications that rely on converting light to energy. A Los Alamos-led research team incorporated magnetic dopants into specially engineered colloidal quantum dots—nanoscale-size semiconductor crystals—and was able to achieve effects that may power solar cell technology, photo detectors and applications that depend on light to drive chemical reactions.

“In quantum dots comprising a lead-selenide core and a cadmium-selenide shell, manganese ions act as tiny magnets whose magnetic spins strongly interact with both the core and the shell of the quantum dot,” said Victor Klimov, leader of the Los Alamos nanotechnology team and the project’s principal investigator. “In the course of these interactions, energy can be transferred to and from the manganese ion by flipping its spin—a process commonly termed spin exchange.”

In spin-exchange carrier multiplication, a single absorbed photon generates not one but two electron-hole pairs, also known as excitons, which occur as a result of spin-flip relaxation of an excited manganese ion.

It turns out there’s a lot of scrap wood produced by the US Army. According to the US Army Corps of Engineers, more than 80 percent of solid waste produced at the Department of Defense (DoD) forward operating bases consists of scrap wood, cardboard, and paper. This equates to almost 13 pounds of waste per soldier per day that could be reused if handled properly, reducing garbage and supplying useful materials for construction.

DARPA’s new Waste Upcycling for Defense (WUD) program aims to produce a process for turning scrap wood, cardboard, and paper into lightweight, strong, and sustainable materials for reuse in a variety of DoD environments.