HONG KONG: A new research study recently published in the journal Nature Physics has revealed that scientists are working to make solar power cheaper and more efficient through the use of novel construction materials.
Scientists from the University of Utah have discovered that hybrid solar cells constructed from perovskite have been able to demonstrate better conversion efficiency after just five years of experimentation. This compares favorably to other top-performing materials, which took a full decade to reach the same goal.
Prior to this new research study, hybrid perovskite solar cells were considered potentially inefficient on the molecular level. However, the new research sheds some important light on this issue; moreover, the scientists involved in the study discovered that they could run a series of tests on hybrid perovskite samples quickly through the judicious application of magnetic fields.
Researchers discovered that, through the applicbation of these magnetic fields, it was easier to understand how semiconductor compounds and electrons interact. Heavy atoms of iodine and lead were found to have the most dramatic effect during these experiments, the scientists said.
At the same time, researchers discovered a mechanism called delta-g which delineates how these magnetic fields influence the spin of paired electrons in the experiments. The spin configuration was found to change in concert with the recombination or the splitting of these pairs; this directly effects the photoluminescence and the electrical conductivity of the perovskite.
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