According to solardily news, Lead-based perovskites already gained much attention as promising materials for low-cost and high-efficiency solar cells. However, the intrinsic instability and the toxicity of lead (Pb) have raised serious concerns of the viability of Pb-based perovskites, hindering large-scale commercialization of solar cells and similar devices based on these materials.
As an alternative solution, Pb-free perovskites were recently proposed to counter the toxicity of lead based perovskites, yet it is of little use due to lower efficiencies.
A recent study, led by Professor Tae-Hyuk Kwon in the School of Natural Science at UNIST has taken a major step toward the development of a new generation of solar cells, using lead-free perovskites.
With its promising electronic properties, the new perovskite material has been demonstrated to function as a charge regenerator with dye sensitized solar cells, thus enhancing both the overall efficiency and stability. Among the various alternatives to lead, the research team used the vacancy ordered double perovskite (Cs2SnI6). ——————–***——————–
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Date: Jan 22, 2019 @ 10:17
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