Austrian scientists have recently developed ultra-light solar elements that have the capability to provide self-sufficient energy generation in challenging and unpredictable environments such as space or remote regions of the Earth. This breakthrough technology is based on quasi-2D perovskite, boasting an unparalleled output capacity of up to 44 watts per gram along with a high level of stability. These solar elements stand out for their impressive lightness, flexibility, and exceptional energy transformation efficiency of 20.1%. With a thickness of less than 2.5 microns (which is 20 times thinner than a human hair), these elements can power a wide range of electronic devices with just the presence of light.
The new technology incorporates transparent aluminum oxide film and optimized materials for the solar elements, significantly enhancing their stability during operation. This innovation allows the solar elements to function effectively in environments that demand a balance between low gas and moisture permeability, high flexibility, and transparency. Practical trials have already showcased the success of this technology, with 24 solar elements installed on a commercial quadrocopter, constituting only 1/400 of the drone’s total weight. These panels enabled the drone to execute continuous flight cycles and charging without the need for wires, underscoring the efficiency and stability of the technology.
These advancements pave the way for a wide range of applications in solar-powered aviation, including search and rescue operations, large-scale mapping, space-based solar energy generation, and exploration of the solar system. The potential of these ultra-light solar elements opens up new horizons for harnessing solar energy in challenging environments and revolutionizing various industries reliant on sustainable power sources.