Perovskite solar cells made of peppermint oil and walnut aroma food additives, preventing lead leakage

Pohang, South Korea (SPX) Feb 27, 2020

Solar energy that reaches the Earth is about 125 million gigawatt (Gw). When this solar energy generated for a year is converted into oil, it is 100 trillion ton which is ten thousand times more than the amount of oil energy the world uses in a year. So, it is no surprising when one of the coffee commercial ads said, "The sunlight reaching the Earth for 30 seconds is enough for the entire world