Academician Chu Junhao: The future sensor needs to achieve low cost, high intelligent application

Chu Junhao, an academician of the Chinese Academy of Sciences, the first batch of experts and members of the review committee of China Sciences Think Tank, a member of the review committee, an expert in semiconductor physics and device, a researcher at the Shanghai Institute of Technical Physics of the Chinese Academy of Sciences, and the dean of Donghua University School of Science.

Chu Junhao has been engaged in the research of infrared electronic materials and devices for a long time, and has made systematic influential research results in the aspects of narrow forbidden band semiconductor physics and iron electrical film material and device physics. The development of non -refrigeration infrared detectors was successfully developed and the BST iron -electrical film was successfully developed and thermal imaging was achieved. In recent years, research has been mainly engaged in the research of new materials and new structures, high -performance new optoelectronic materials and devices.

Sensor help intelligent development

Human beings use sensory organs to acquire information to know the world, and machines can complete the record of things through sensors. The sensor is equivalent to the sensory organs of the machine. Through multiple requirements such as completing the information transmission, processing, storage, display, recording, and control of information to help automation. Many sensors can be found in our daily life, such as smart toilet lids, which include heat sensors, light sensors, fire risk alarm, human sensing lights, touch screens, automatic induction doors, etc.

Chu Junhao said that any temperature object will emit heat radiation, which is infrared. Although the naked eye is not visible, it can be seen through infrared sensors. The best response in semiconductor materials is 碲 cadmium mercury semiconductor material. He led the team for the first time discovered the absorption spectrum between cadmium mercury belts and obtained the most complete international data, which is equivalent to setting a standard for the research and development of infrared detection materials. Chu Junhao said that the infrared sensor has three major functions: first, you can see the spatial distribution of the target, and it can be observed in the dark environment. Second, you can get the thermal image of the target and see the temperature distribution of the object. Third, you can see the spectrum of the target, which is the spectrum of light reflected on the surface of the object.

Chu Junhao said that it is now in the fourth industrial revolution. The general trend is intelligent, and sensors are very important core technologies of intelligence. With a good sensor, you can hold the core technology, and then analyze the information of the sensor through the Internet technology, and then achieve multi -functional integration, wireless communication, flexibility, and miniaturization. He believes that there are three pillars in Internet technology, one is dynamic perception, which can get information in real time and rely on sensors. The second is intelligent analysis, which can perform model analysis and big data analysis. The third is automatic response to form an intelligent system.

Chu Junhao said that dynamic perception mainly relies on sensors and chips. For example, our observation and empty detection of grounds rely on dynamic sensors to obtain information in real time. After dynamic perception, how to analyze intelligent. He said, "We are in big data in the fluctuation world, with mechanical waves, electromagnetic waves, gravitational waves. They have the characteristics of frequency, intensity, position, polarization, etc. The analysis of big data is very important. This requires smart analysis. And smart analysis. Mainly rely on model analysis and big data analysis and smart chips. "The third is to automatically respond. Nowadays, we have the basic information platform. There are 5G technology of the Internet, the Internet of Things, integrated circuits, chip technology, and communication, which can greatly improve the automatic response. He also said that in the future, high -performance sensors need to achieve lower costs, faster speeds, higher integration, and more intelligent applications.

Disciplinary cross -promotion forward development

Chu Junhao said that popular science is not a pediatric department, but a profound science. The ultimate goal of science popularization is to improve the scientific literacy of the whole people. It is necessary to organically combine scientific research and science popularization, so that non -professional personnel can understand, but also make professionals feel new, so that people from all walks of life can learn about the latest science in time. Progress and development direction to cultivate social soil for scientific research. He believes that popular science workers can be divided into three categories. The first category is full -time popular science talents; the second category is scientists; the third category is part -time popular science volunteers.

Chu Junhao believes, "Only during the cross -disciplinary process can we promote the continuous development of science." This requires breaking the public's inherent impression of popular science -professionals are popular science communicators, and the public is the beneficiary of science popularization. Essence In fact, scientists are also the beneficiaries of science popularization, and high -end popularization is the cradle of scientific development. The entire society must vigorously cultivate popular science talents; in the future, universities can open more popular science majors; society can also guide scientists and professionals to actively engage in popular science work; the government can introduce incentive policies for science popularization talents to better promote the work of popular science talents in the new era And the science popularization cause in a better and faster direction.

For young people, Chu Junhao said: "The younger generation needs to read, cultivate their soft power, and cultivate their own scientific quality." He hopes that young people can grow vigorously in the sun and rain in the sun. It can be as tenacious as Cao. Scientific research is a difficult and fascinating road. With all hardships, it will have a sense of accomplishment and happiness due to a bumper harvest. (Source: China Science and Technology Think Tank Official WeChat Public Account Text/Wang Huilan)

Academician Chu Junhao and students together

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Introduction to Academician Chu Junhao

Chu Junhao, an academician of the Chinese Academy of Sciences, the first batch of experts and members of the review committee of China Sciences Think Tank, a member of the review committee, an expert in semiconductor physics and device, a researcher at the Shanghai Institute of Technical Physics of the Chinese Academy of Sciences, and the dean of Donghua University School of Science.

Research on infrared electronics and devices for a long time, has made systematic influence results in the aspects of narrow forbidden band semiconductor physics and iron electrical film material and device physics. In recent years, research has been mainly engaged in the research of new materials and new structures, high -performance new optoelectronic materials and devices. It was found that the narrow -band semiconductor cadmium cadmium mercury belt was moved to the absorption spectrum and developed the theory of structural and transition of cadmium mercury with cadmium mercury. Cited and believe that it is most consistent with the experimental results; it solves important basic issues involved in the development of cadmium mercury film materials and coke iconic array devices. Carry out research on the physical and non -refrigerated infrared detectors of iron -electrical film materials, and developed non -refrigeration infrared detectors of PZT and BST iron -electrical film and achieve heat imaging. He has won the National Natural Science Award, the Chinese Academy of Sciences Natural Science Award, the Science and Technology Progress Award of the Chinese Academy of Sciences, and the Shanghai Science and Technology Progress Award. He has won the National Key Laboratory Plan for Advanced Personal Award and the National Plan of the National 973 Program. It is an academic leader of the National Natural Science Foundation of Natural Sciences. Published more than 600 academic papers, three monographs in Chinese and English, compiled 10, and patented more than 70 items.

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