Scientists Decide How To Prove Out Perovskite Panels For Space Power

Radiation reaching the Earth tends to mostly be photons, or light from the sun, which solar cells absorb and use to generate electricity. In space, however, radiation comes from all directions in the form of protons, electrons, neutrons, alpha particles, and gamma rays. This creates an inhospitable environment for operation of many electronic devices, including solar cells.

Other researchers involved are with the University of Oklahoma, the Jet Propulsion Laboratory, California Institute of Technology, The Aerospace Corporation, the University of Colorado-Boulder, NASA Glenn Research Center, the University of North Texas, and the U.S. Air Force Research Laboratory. The contributors are experts in the area of radiation testing of solar cells. Their input resulted in a consensus on how to approach the testing of perovskite solar cells for space applications.

Other researchers have reported that perovskites can tolerate intense radiation with unprecedented durability, but the newpaper offers guidelines on exactly how to test them on Earth for the actual complicated radiation spectrum in various space orbits. The simulations modeled shooting protons with various energies at a perovskite solar cell and determined how the proton beams would interact. High-energy protons went right through the thin perovskite cells in the simulation. The low-energy protons are adequately absorbed and cause damage to the structure of the perovskite, allowing the researchers to then measure how that radiation damage corresponds to the ability of the solar cell to produce electricity.

Source: Tech Daily Report (techdailyreport.net)

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