Scientists developed solar cells with reference to the invention of photosynthesis efficiency

MIT scientists have recently invented a reference leaf photosynthesis with the role of self-repair of solar cells. At the same time, the battery can be as light as the molecules they gathered closely together, resulting in twice the normal battery storage of electricity.acer aspire 531 battery

It is reported that photosynthesis can convert solar energy to electricity and then the electrical energy into chemical energy for the active, and ultimately be converted into stable chemical energy of the process that will generate electricity for the use of photosynthesis to provide the foundation. Since photosynthesis can be relatively efficiently convert solar energy into electrical energy, but also in the process of transformation consumes only water, not the slightest contamination of the environment, so in the increasing scarcity of other natural energy sources, environmental pollution is serious today, use photosynthesis to solve human demand for energy has become a hot topic of scientific research. The place is the chloroplast photosynthesis. Higher plant chloroplast diameter 4 ~ 10μm, the thickness of between 1 ~ 2μm. In the chloroplast, there are several to dozens of basic grains, each of the structure of grana stacking by cystic made the film in the cystic structure, with photosynthetic pigments. Photosynthesis consists of two main steps: first, the need of light involved, the cystic structure in the chloroplasts of light on the reaction; the second is no light involved, and enzyme in the chloroplast stroma in the dark reaction. Light reaction is divided into two steps: primary reaction, the conversion of light energy into electrical energy, the decomposition of water and release oxygen; electron transport and photosynthetic phosphorylation, active electrical energy into chemical energy. Dark reaction is based on the C5 compounds in plants (1,5 – bisphosphate ribulose) and CO2 as raw material, using light reaction of the active chemical energy, the formation of stored energy of glucose. Although the photosynthesis of sunlight on the leaves plays a vital role, but will also use strong ultraviolet rough destructive oxygen molecules and other molecules to damaged leaves, then leaves on the need to constantly create new photosynthetic reaction center to replace damaged molecules.acer aspire 532H battery

Solar cells through the photoelectric effect or photochemical effects of light energy directly into electrical energy, the sun light in the semiconductor pn junction to form a new hole – electron pairs in the pn junction electric field, the hole flow from the n area p zone, the flow of electrons from p-n area, connected to the circuit after the formation of current. This is the photovoltaic solar cell works. Solar cell is a kind of photovoltaic effect and because the solar energy directly into electrical energy device, a semiconductor photodiode, when the sun light to the photodiode, the photodiode will be the sun’s light energy into electrical energy, resulting in current. When the number of batteries together in series or parallel can be a relatively large solar power output of the square. Solar cell is a promising new type of power supply, with a permanent, clean and flexible three major advantages. Solar battery life, as long as there is sun, solar battery to be an investment in long-term use; and thermal power, nuclear power, compared , solar cells will not cause environmental pollution; solar cells can be both medium and small and large to medium-sized million-kilowatt power station, only a small use of solar battery, which is unmatched by other power.acer aspire 751H battery

Massachusetts Institute of Technology chemical engineer Michael? Strano (Michael Strano) said they were from the leaves in photosynthesis and the principle of self-repair have been inspired by the research no longer focused on how to improve the durability of the solar energy, decided to start trying to design a self-replace the damaged part of the system.

It is understood that the scientists use a purple bacterial photosynthetic reaction center to be tested, they add some in the structure of protein and fat, in order to generate electricity but also creative joined carbon nanotubes. Scientists only allow small molecules to pass through to these materials, they will have these materials into a dialysis bag filled with water. Meanwhile, scientists also added to these materials, a surface active agent, the chemical properties of materials due to their own collection of spontaneously into a ball, and they will produce the greatest amount of current in accordance with the style automatically. Winding on the scaffold protein in the fat in the photosynthetic reaction center with the help of the formation of small disk, the small disk will automatically arranged along the nanotube, then the current produced from the photosynthetic center of the small disk from The hole in the cross. When the team this heap of surfactant material filter, they captured a trace generated by the solar currents. While these composite materials will eventually fail, but they also can easily be “resurrection.” Researchers work to make more efficient hybrid materials, longer duration, replaced four times every week of work – is about to open these materials are mixed together, and then again in the photosynthetic reaction center in the new material into This solar cell can achieve self-repair work.acer aspire ZA3 battery

The researchers said that although such solar cells can not be used with the now widely comparable silicon solar cells, silicon solar cells but need to go through several decades of research and development to improve power generation efficiency, while the same investment if invested in the New solar cell, not only will be completed in a short time and efficient power generation, but also can work in low light conditions. Scientists taking a step forward that they are going to try to extract from the plant material to be applied to the solar cells, the hope that the solar cells would become a real green battery.

According to the experts nanocomposites Jamie? Glenlyn (Jaime Grunlan) said the technology is the nature of the “work” artificial, this study is a pioneering study of the scientific community.acer aspire ZG5 battery