Recently, a record-breaking plastic polymer solar cell has been successfully manufactured. The developers are researchers from the University of California, Los Angeles. The conversion rate of the new polymer battery reached 10.6%, higher than the 8.6% created in July this year.
Polymer solar cells are flexible and light, and may be cheap in the future, but their performance lags behind conventional batteries. As the leader of the research team, Yang Yang, a professor of materials science and engineering from the University of California, Los Angeles, said the team ’s goal is to make polymer solar cells that can compete with thin-film batteries. The entire research experiment was funded by Sumitomo Chemical.
The new plastic solar cell contains two layers, which act on light in different wavelength bands, one layer of polymer acts on visible light, and the other layer acts on infrared light. "The solar spectrum is very broad, from near infrared to infrared to ultraviolet, a single solar cell component cannot do all this." Yang Yang said.
Yang Yang said that he hopes that the cell efficiency will reach 15%. Of course, 15% efficiency is a laboratory test. The resulting module is likely to be 10% efficiency. Yang Yang believes that this is enough to compete with thin-film silicon solar cells.
The present invention provides a multifunctional pull faucet, comprising: a faucet body, a drawing part is provided at the water outlet port thereof, and the drawing part is connected to a main channel, wherein at least three are provided in the faucet body A branch channel, and the three branch channels are all connected to the main channel. A multifunctional pull faucet provided by the present invention, wherein the hot water channel, the cold water channel and the water purification channel (pure water channel) are all connected to the main channel , And the main channel is connected with the drawing part on the main body of the faucet, so that the drawing part can obtain the water quality (hot water, cold water, purified water or pure water) required by different users, thereby improving the user experience, and , By integrating the hot water channel, cold water channel and pure water channel (pure water channel) into the main channel, the internal structure of the faucet is simplified, and the production cost of the faucet is reduced.
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