The United States to develop a new type of solar battery can charge a few weeks

The lack of low-cost high-capacity storage system is a major obstacle to solar power generation. Today's standard solar cells have only a few delicate times to store electricity, so it is foreseeable that future solar panels will have to rely on electricity networks to work. This also explains why many green energy technology experts see solar power and hybrid systems as the mother of disruptive technology. In a recent scientific journal, a study by chemists from the University of California, Los Angeles, showed that a completely renewable solar and hybrid system solution could double the generation and storage of electricity with new solar cells Goal, and this new type of solar cell can charge up to several weeks under one-time charging conditions. It is understood that this new solar cell is not a traditional silicon raw materials, replaced by a new biomimetic plastic material, by imitating the principle of plant photosynthesis to work. Sarah Tolbert, a professor of chemistry at UCLA and a senior fellow in a new solar cell project, said, "Biomimicry does a good job on solar power and the energy efficiency of photosynthesis in plants is amazing." The new technology has two basic elements, the polymer donor and the nanoscale fullerene (spherical shell carbon) acceptor. The former absorbs sunlight and transfers electrons to the latter, which in turn generates electricity. The picture shows the polymer donor and fullerene (spherical shell carbon molecules) receptor structure distribution It is reported that this new type of plastic material is called organic solar cells. Its working principle is like a long, thin, polymer donor "spaghetti," with some fullerenes "meatballs" mixed with noodles. But this structure is very difficult to get the current from the battery, after all, some electronics sometimes jump to "pasta" and disappear. So UCLA researchers used a new structure, a handful of uncooked spaghetti and meatballs accurately placed together, a number of fullerenes (spherical shell carbon molecules) "meatballs "Is placed in" spaghetti ", while others are placed outside spaghetti. The fullerene "meatball" within the structure takes electrons from the polymer donor and throws the electrons to the outer fullerene "meatballs," thus ensuring long-term, long-term storage capacity. In this new system, scientists are able to realize the self-assembly of their internal structures through the close proximity of micro-processes. "During photosynthesis, plants exposed to the sun utilize the ordered nanostructures within the cell to quickly separate charges," said Tolbert, "stripping electrons from their positively charged molecules to achieve positive and negative charges Completely separated, and this is the secret of effective photosynthesis. "