According to a report recently organized by the American Physicists Organization Network, a research team at the Massachusetts Institute of Technology (MIT) has found a way to create photonic crystals that can withstand high temperatures of 1200 degrees Celsius using metallic tungsten or tantalum. This material can be widely used in smart phones, infrared chemical detectors and sensors, deep space exploration spacecraft and other power supply devices. Related papers are published in the latest issue of the National Academy of Sciences. Photonic crystal refers to a special lattice that can respond to light, and can affect the regular optical structure of photon motion, similar to the influence of semiconductor crystals on the electronic behavior. The lattice size is equivalent to the wavelength of the light wave and is a crystal structure in which the refractive index dielectric materials are periodically arranged in space. Seranovich, a scientist at the MIT Institute of Military Nanotechnology, said that this new type of high-temperature, two-dimensional photonic crystal can be manufactured into a computer chip almost entirely using standard microfabrication technology and existing equipment. Compared with the earlier methods of manufacturing high-temperature photonic crystals, the materials produced by the new method have the characteristics of “higher performance, simple operation, and durability†and are suitable for low-cost mass production. NASA is also very interested in this material because it has the potential to provide continuous power for deep exploration of space. Such tasks are usually performed using a small amount of radioactive energy, using radioisotope thermal power (RTG). For example, the “Curious†detector that is scheduled to arrive on Mars this summer is using the RTG system, which can be continuously operated for many years, unlike solar power stations, which will generate power shortages in the winter. This kind of high temperature resistant photonic crystal has broad application prospects and can be used for solar thermal conversion or solar photochemical conversion devices, radioisotope power supply equipment, nitrogen-hydrogen compound generators, or auxiliary facilities for waste heat recovery in industrial power plants. However, there are many obstacles to the manufacture of such materials. High temperatures can cause crystals to evaporate, diffuse, corrode, crack, melt, or rapidly chemical reactions. In order to overcome these challenges, MIT's research team is working on the structure of high-purity tungsten specifically and precisely geometrically to avoid material damage when heated. The material can also replace the battery and provide power for portable electronic devices. It uses butane as a fuel to run the thermal photo-generated motor to generate energy. The operation time is 10 times longer than the battery. (Hua Ling Editor: Peng Jinmei) Wire Mesh,welded Wire Mesh,Window Insect Screens Mesh Yongwei Metal Product Co., Ltd , http://www.hswire-mesh.com