1. Researchers have developed a raindrop electricity generator that uses a field-effect transistor-style structure to instantly produce a surprisingly high voltage from water drops.
2. It can produce 140V from just one drop of rain, enough to power 140 small LED bulbs.
3. Its instantaneous power density can reach up to 50.1 W/m2, thousands of times higher than similar devices without the use of the FET-like design.
4. The raindrop electricity generator consists of an aluminium electrode and an indium tin oxide electrode layered with a film of PTFE, a material with a ‘quasi-permanent’ electric charge.
5. They hope that the outcome of this research would help to harvest water energy to respond to the global problem of renewable energy shortage.