Researchers at MIT recently announced a new method of making solar cells - "printing" solar cells on paper or textiles. Traditional production methods require high temperatures of several hundred degrees, but this new method uses water vapor to keep the production temperature below 120 degrees. The use of paper and textile materials can not only reduce the production cost of solar cells, but also make the cells bendable and curlable. The fly in the ointment is that the current photoelectric conversion efficiency of this new type of battery is still relatively low. In the next few years, researchers will work hard to improve this problem.
