Beijing, March 17 (IANS): Chinese scientists have found that photovoltaic cells can retain the majority of their power conversion efficiency in close space, providing perspectives on the future use of cells in space.
Perovskite solar cells (PSCs) are known for their potential for achieving higher efficiency and low production costs over conventional silicon solar cells.
These cells also have great potential for developing new generation energy application technology for space applications, but no small study has been conducted to test the stability of PSC's in the extreme space environment, Xinhua News Agency reported.
In the study, researchers from China's Beijing University sent the devices attached with PSC's into close proximity to a high-altitude balloon.
The balloon rose to almost space at a height of 35 km, an area above the Earth's atmosphere, where there are only traces of moisture and ozone.
The region, considered to have the "zero mass of the air mass," contains no atmospheric attenuation of solar radiation, and therefore several high energy particles and radiation, such as neutrons, electrons and gamma rays, come from the galactic cosmic rays and sunlight.
According to the results, a type of PSC & # 39; used in the study retained more than 95 percent of its original power conversion efficiency during the test, the researchers reported in the journal Science China Physics, Mechanics and Astronomy.
They said the study is expected to play a crucial role in PSC's future stability research.