The low power generation efficiency in the dark environment such as rainfall is a bottleneck for solar energy applications. Especially in the rainy cities in the south, solar power generation is not constrained. At the National Science and Technology Week and the Beijing Science and Technology Week at home in 2017, the “raindrop power generation†technology demonstrated by the Beijing Institute of Nano Energy and Systems, Chinese Academy of Sciences aimed at this pain point and used the rainfall to generate electricity. At the scene, the researchers set up a simple wooden hut, laid a thin film of raindrops on the roof of the wooden house, and built a closed circuit, using a shower device to simulate raindrops falling on the film. At this point, the LED lamp with the film connected is on. If a solar panel is placed under the raindrop film, it can generate electricity whether it is sunny or rainy. "Raindrop power generation utilizes the world's leading polymer nanofilm rainwater power generation technology. After the nanofilm is made transparent, the light transmittance can reach 90% or more. When it is laid on a solar panel, it can become raindrops when it rains. Sunny solar energy composite energy." May 20, at the scene, the Chinese Academy of Sciences Beijing Institute of Nano Energy and System Director Wang Zhonglin introduced to the public. "The film is divided into two layers. After the rain drops on the film, there will be a contact between the two layers of material and the surface will be able to sense the charge through friction. The rainwater is not pure water and is charged. After contact, a thin film adsorbs positive electricity. Another layer of the film is negatively charged. This creates a voltage that is connected to the closed circuit and generates a current,†said Zhao Xuejiao, a researcher at the scene who introduced the reporter. The amount of electricity generated by raindrops is still under further investigation. According to the paper published by Wang Zhonglin in Nature, through theoretical calculation, another type of water wave power generation device based on frictional power generation technology, a large-area thin film in Shandong Province, can meet current global power supply needs, but from theory to Actually, there is still a long way to go. The stability of raindrop power generation is actually related to the continued rainfall. If the rain continues to fall, the current continues; if the rain is intermittent, then the pulse current is generated and it is difficult to stably continue the life. Therefore, the research team focused on the unsteady conditions of triboelectricity and specifically studied the corresponding circuit—first collecting electricity into a capacitor and then deriving a DC-regulated current, with an energy conversion rate of 85%. According to the assumption of the Institute of Nanotechnology of the Chinese Academy of Sciences, raindrop power generation and water wave power generation may become industrialized in 5 years, allowing some equipment to achieve self-powered. Taking meteorological observatories as an example, weather stations are set up in forest areas or remote areas where there are many rainfalls. Power supply and maintenance are not very convenient. If raindrop power generation is stable, it is a good power supply option. "The key is to increase power and stability, and how to package materials more effectively." Zhao Xuejiao introduced. At present, there is still a gap between the power generated by raindrops and solar energy. If we can further increase the power, the current application scenario of solar energy can be used for raindrop power generation. The combination of two ways will be more efficient. Outdoor Garden Light is typically used to illuminate areas such as gardens, lawns, pathways, and courtyards. They can be pole-mounted, wall-mounted, or ground-mounted and typically use LED or other energy-efficient bulbs to provide efficient lighting. Outdoor Garden Lights can also be equipped with sensors to automatically turn on or off when detecting people or animals, saving energy and increasing safety. Additionally, they can have different designs and colors to meet various outdoor design needs. Outdoor Garden Light,Farmhouse Style Steel Outdoor Lamp,Outdoor Wall Lamp Garden Lighting,Garden Pendant Lamp Zhengdong Lighting Co., Ltd. , https://www.zdlightingfixture.com