Tagged * Solar Energy News™

How photoelectrodes change in contact with water

Every green leaf is able to convert solar energy into chemical energy, storing it in chemical compounds. However, an important sub-process of photosynthesis can already be technically imitated — solar hydrogen production: Sunlight generates a current in a so-called photoelectrode that can be used to split water molecules. This produces hydrogen, a versatile fuel that…

Ultrathin solar cells promise improved satellite performance

As low Earth orbit becomes more cluttered, it becomes increasingly necessary to use middle Earth orbits, and radiation-tolerant cell designs will be needed. Making photovoltaics thinner should increase their longevity because the charge carriers have less far to go during their shortened lifetimes. Scientists propose a radiation-tolerant photovoltaic cell design that features an ultrathin layer…

Tandem solar cells with perovskite: Nanostructures help in many ways

By the end of 2021, scientists had presented perovskite silicon tandem solar cells with an efficiency close to 30 percent. This value was a world record for eight months, a long time for this hotly contested field of research. Scientists now describe how they achieved this record value with nanooptical structuring and reflective coatings. Read…

More reasons to go solar when gearing up for a greener drive

With electric vehicles sales soaring worldwide, potential buyers are not just weighing up the price tag, but also the logistics and expense of charging the planet-friendly cars. A new study shows households with solar panels and batteries will be the big winners. Read Full Article Here For more great articles: Solar Energy News — ScienceDaily

Casting shadows on solar cells connected in series

Even small objects, such as dust and leaves, can block sunlight from reaching solar cells, and understanding how the loss of incoming radiation affects power output is essential for optimizing photovoltaic technology. Researchers explore how different shade conditions impact performance of single solar cells and two-cell systems connected in series and parallel. They found that…

Passive cooling system could benefit off-grid locations

A new passive cooling system relies on evaporation and radiation and requires no electricity. The device can provide up to about 19 degrees Fahrenheit (9.3 degrees Celsius) of cooling from the ambient temperature, to help keep food fresh longer or supplement air conditioning. Read Full Article Here For more great articles: Solar Energy News —…

New photodetector design inspired by plant photosynthesis

Researchers have developed a new type of high-efficiency photodetector inspired by the photosynthetic complexes plants use to turn sunlight into energy. Photodetectors are used in cameras, optical communication systems and many other applications to turn photons into electrical signals. The new detector design uses unique quasiparticles known as polaritons to achieve long-range energy transport in…

Researchers use infrared light to wirelessly transmit power over 30 meters

Researchers describe a new wireless laser charging system that overcomes some of the challenges that have hindered previous attempts to develop safe and convenient on-the-go charging systems. With further development, the system could charge mobile devices like phones and laptops at 30 m distances. Read Full Article Here For more great articles: Solar Energy News…

Preventing dye aggregation with molten salts to improve solar cell performance

Dye-sensitized solar cells (DSSCs) are a promising next-generation solar power technology, but they suffer from dye aggregation on electrodes, which reduces charge carriers and the conversion efficiency. Fortunately, scientists have now found a simple way to prevent the aggregation by modifying the electrode’s surface with ionic liquids. Stable and eco-friendly, these versatile compounds demonstrate excellent…

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