Deng Xiaoping said: "science and technology are primary productive forces." Indeed, "social development by science and technology, scientific and technological progress by innovation." LED lighting field of development, the same need to seek a breakthrough, keep moving forward, can not rest on its laurels. August has come, recalled in recent days, domestic and foreign new technology breakthroughs in the good news is frequent.
First, ultra-fast LED light-emitting equipment
Duke University researchers have recently developed a can be opened in 1 second 90 billion times the LED light-emitting equipment, can be used as the basis of optical computing technology.
You can not be separated from the smart phone every day, every day to charge, but may not be a lot of people know that a small battery inside up to billions of transistors, can be used in the opening and closing of billions Sub-electronic to power supply. In the recent, the United States Duke University researchers developed a can be opened in 1 second 90 billion times the LED light-emitting equipment, can be used as the basis of optical computing technology. Then, as long as the researchers continue to work hard to develop a fast opening and closing of the light source, so that micro-chip can use photons to replace electrons to deal with and transfer data, the computer's speed can be greatly improved. According to reports, although the laser to meet this requirement, but because of the high energy consumption and the size of the launch device is too large, not suitable for work in the computer. Now, Duke University developed this rapid light-emitting equipment, indicates that the researchers from the light source for the use of light to produce a step closer. Although the revolution has not yet succeeded, but from the success but a step closer, it is also gratifying.
Second, phosphene luminescent materials
Scientists at the Australian National University have recently discovered luminescence properties in the study of thin-layer thin films, which are expected to open up a ray of light for ultra-thin and ultra-light solar (PV) batteries and light-emitting diode (LED) applications.
The name of the "phospholene" (phosphorene) is probably a bit unfamiliar with the name of the graphene. Compared with graphene, phosphene is a more silicon (Silicon) semiconductor, as we all know, silicon is the basis of electronic technology. The team of scientists created this time is the same way that the discovery of graphene won the Nobel Prize in physics, that is, the use of tape repeated in the black crystalline form of phosphorus stripped out of the thinner crystal layer. According to the researchers, because the surface state of phosphine can be minimized, it is different from the surface of the surface and can not be used for thin state of silicon. The performance of phosphene in thin layer is better than that in silicon. In addition to creating a thinner semiconductor than silicon, phosphene also has a light-emitting characteristics and different thickness of the stack, to achieve a more flexible manufacturing. Since phosphene is both light and thin, it creates opportunities for manufacturing many interesting devices, such as LEDs or solar cells, which show a very promising light-emitting feature.
Three, can be made of white laser
American scientists for the first time developed a white laser can be made. Researchers say white lasers are brighter and more energy efficient than light-emitting diodes (LEDs), and will play an important role in lighting and wireless communications.
Grilled a Grill: has been widely used in a number of areas of laser, has been a short board: only a single wavelength of light. In order to solve this problem, a white laser can appear. Arizona State University's research team has recently developed a novel nano-sheet. The size of this slender semiconductor is only one-fifth of the size of the hair, the thickness of only one thousandth of the hair, it has three parallel parts, each part can send red, blue, green, one of the color of the laser The When the three primary colors "meet", there is a white laser. The latest research results, so that the replacement of LED laser light to become the mainstream of a step forward. The study is another important application, or will include the field of visible light (LiFi), looking to the future, indoor lighting systems or can also be used for communications. The current prevalence of "WiFi" is the use of radio waves, LiFi speed can reach 10 times the WiFi. However, strong in the strong in their own hands, a mountain there is a high mountain, allegedly, white laser WiFi speed, may be based on LED LiFi 10 to 100 times. Unfortunately, to apply this white laser to a realistic lighting or display system, there are still a lot of obstacles waiting to be addressed. Or the phrase, "revolution ..."
Four, adjustable color graphene LED
Tsinghua University has recently made a color castable graphene LED, this new LED breakthrough in the existing display device color synthesis, is expected to display, lighting and communications technology have a revolutionary impact.
Grilled a Grasp: the above said so much to force the foreign scientific and technological researchers, domestic scientists can not fuel-efficient lights. It is understood that light-emitting diodes (LEDs) of the luminous color and wavelength are determined by the luminescent material, once the preparation is complete, the two properties were identified. At present, with an LED to change the color of light the idea is difficult to achieve. Recently, Tsinghua University research team from two different forms of graphene produced a new type of luminescent materials, the first time in the graphene-based materials, light-emitting system proved that only one LED can be adjusted to different colors of light. The research group developed a palette of polystyrene LEDs that cover all the colors of the entire visible spectrum except dark blue and violet. According to another report, this new LED breakthrough in the existing display device color synthesis, but also on the display, lighting and communications technology have a revolutionary impact. As the color of light changes with specific chemicals, such devices may also be used to prepare special sensors. No wonder the experts have given a high rating: "This work is expected in the field of light-emitting devices to expand new research direction", "this work is exciting and influential."
Fifth, the world's strongest laser equipment
Scientists at Osaka University in Japan say that the "Quick Ignition Laser (LFEX)", which is capable of producing a 2-kilovolt-ray laser beam, is currently capable of emitting the world's most powerful laser beam.
Grilled a Grilled: "Star Wars 7 · Force of awakening" is about to come back, familiar with this series of science fiction movie film friends, it is estimated to be exposed to age. In any case, you "Star Wars fans" who must be among the "Death Star weapons" impressed. The "Fast Ignition Laser (LFEX)", which has been used by Osaka University researchers in Japan, is capable of generating a 2 trillion-kilowatt laser beam, which is said to be a laser beam that is very much like a "dead star weapon" in science fiction movies. Researchers from the low-energy equipment to create high-energy output, only 1 picosecond (one hundred thousandth of a second) to launch the laser beam. In order to amplify the laser beam power, the energy will be applied to 100 meters long LFEX equipment on the glass panel, the progressive amplification. It is understood that 5 million watts of laser beam can shoot down 1.6 km away from the UAV. Prior to this world only the United States University of Texas made 1 trillion kilowatts of laser, Japan's Osaka University, the latest laser equipment to produce 2 trillion kilowatts of laser, the research team also said that the future of laser equipment will produce 10 trillion Tile laser. LFEX laser equipment is also the current scientific research value, has not yet put into practical application.