Keep a cool head despite Dow’s drop, says expert

Fear is spreading among investors after a day that saw the Dow Jones drop as much as 1,500 points dramatically below 25,000.

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Guanidinium stabilizes perovskite solar cells at 19 percent efficiency

With the power-conversion efficiency of silicon solar cells plateauing around 25%, perovskites are now ideally placed to become the market’s next generation of photovoltaics. In particular, organic-inorganic lead halide perovskites offer manufacturing versatility that can potentially translate into much higher efficiency: studies have already shown photovoltaic performances above 20% across different solar cell architectures built with simple and low-cost processes.

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