Prof. CAO Yuancheng from Jianghan University and the team of Dr. Zhuang Qiandong, chief researcher of the semiconductor center of Lancaster University, have developed new materials to greatly improve the sensitivity of infrared detection. On April 10, the British website Nature Online published an article entitled "Indium Arsenide Nanowire Infrared Photodetector Based on Flexible Graphite Substrates," which is published in full in the "Nature" issue of Science Report published later this month . According to Cao Yuancheng, indium arsenic nanowires are the main objects of scientists' research as high photoelectric conversion efficiency materials, especially indium-arsenic one-dimensional nanowires based on carbon, which is a hot spot of highly integrated optoelectronic integrated circuits. However, the above materials are prone to defects in crystal structure during their preparation, resulting in inefficient or non-responsive response of light to such materials, especially in the mid-long infrared band. Cao Yuancheng team in the indium arsenide incorporation of antimony elements, the synthesis of a new antimony-doped indium arsenide nanowires, arsenic significantly reduced the structural defects of indium arsenide, while the self-catalytic function of antimony elements, significantly enhance the new Substance responds to infrared photons. Cao Yuancheng said that this nanowire wavelength response to light, reaching 5.1 microns, which covers the entire mid-infrared spectrum, is the longest infrared response to nanowires can be used at room temperature and efficient operation of the medium-wave infrared, long wave infrared Photodetectors, infrared emitters, high-sensitivity phototransistors, etc., are ideal materials for manufacturing a variety of optoelectronic devices. It is understood that the above research is applied to practice, such as missile infrared detection and night vision, can improve the detection sensitivity of 50% on the basis of the current, most of the existing anti-infrared camouflage failure, civilian aspects are more extensive. High speed residential garage door
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