Green energy - — Organic solar battery solar street lamps in chongqing

From the use of ancient natural fire to simulated flight, until the use of coal, oil, the development of human civilization is essentially the development of energy utilization ability. So far, the contemporary civilization and economic development is largely based on the fossil energy development and utilization of

the development of human civilization is, in essence, the development of the energy utilization ability, from the ancient natural use of the wood fire drill, and then to the use of coal and oil. So far, the modern human civilization and the development of economy is largely based on the development and utilization of fossil energy. In the 21st century, because of the earth to the attention of non-renewable fossil energy reserves and the development and utilization of fossil energy caused by the increasingly serious environmental pollution, people will turn to explore the emphasis on green and sustainable energy, such as solar, wind and water. hellip。 ； Only solve the problem of solar energy effective utilization of science, human can realize sustainable development. ； Institute of chemistry of nankai university professor Chen yongsheng asserts that the sun is the mother of all things, is also the source of energy. Source:. If every hour to reach the earth's solar energy can be use 1/2 million, it can satisfy all of the current human society's energy needs. ； Is also for this reason, professor Chen yongsheng and his team put their scientific research task condensed into one word: ndash; Seek energy from the sun; ！ 1. Organic solar cells is expected to be commercialized in the human use of solar energy technology, solar battery is used. Photovoltaic effect; Converts light energy into electrical energy device is widely used at present, is also one of the most promising technology. For a long time, people have created more based on inorganic materials such as crystalline silicon solar cells. However, this kind of battery production has complex process, high cost, large energy consumption, heavy pollution and other shortcomings. Can find a low cost, high efficiency, high plasticity, and environmental protection of new organic material, and its development into a new type of solar cell, is becoming the important aims for scientists around the world. ； With earth abundant carbon materials as the basic raw material, through technical means to obtain high efficiency and low cost of green energy, to solve the energy problem has the important significance of the current human face. ； Said Chen yongsheng, organic electronics and began in the 1970 s ( Polymers). Functional materials research provides opportunities to achieve this goal. Compared with the inorganic semiconductor material represented by silicon, organic semiconductor materials with low cost and diversity, function is adjustable, flexible printing preparation, etc. At present, based on organic light-emitting diode ( OLED) Display has been commercialized, and widely used in mobile phones and TV monitors. However, based on the organic polymer materials as the photosensitive active layer of organic solar cells have many advantages, such as material structure diversity, large area and low cost printing preparation, flexible, translucency and even full transparency, with inorganic solar cells technology does not have many excellent properties. It besides is a common power generation equipment, in the field of energy-saving building integration and wearable equipment also has great potential for application, aroused great interest of academia and industry. ； Especially in recent years, rapid progress has been made in research on organic solar cells, the photoelectric conversion efficiency is constantly updated. At present, the scientific community is generally believed that the level of organic solar cells has reached commercial; Li Mingming eve; 。 ； Said Chen yongsheng. 2. Break through the bottleneck, strive to improve the photoelectric conversion efficiency bottleneck restricting the development of organic solar cells is the photoelectric conversion efficiency is low. To improve the photoelectric conversion efficiency is the primary goal of the organic solar cell research, also is the key to its industrialization. As a result, the preparation of high efficiency, low cost, high reproducibility and solution for processing active material is the foundation of the photoelectric conversion efficiency.