Condensed matter physics has been a long-standing topic in cutting-edge physics, and this afternoon, Professor Liu Junming, a scholar of condensed matter and materials physics from the Department of Physics, gave us a talk on his specialty with the title “How to have the horse run fast but not graze,” on the design of transparent metal network electrodes.

Starting from the emblem of Kuang Yaming Honors School, Professor Liu gave a brief introduction to physics with a short story to show that there are often contradictory conditions in physics, such as lithium motion activity and lithium dendrite growth.

“How to let the horse run without grazing” is indeed an urgent issue in physics.

In the production of transparent metal network electrodes, the industry needs metals that are both conductive and transparent. Most metals do not meet this requirement. ITD does meet the requirement, but its price is too high. It is materials science and condensed matter physics that help us find eligible and efficient materials such as silver nanowires and carbon nanotubes.

Physics research often involves many interdisciplinary elements. Inspired by the chapped land in Northwest China, people found a method to optimize light and electron transmission, and that is the simulation model.

The connectivity between physics and other fields also opens up infinite possibilities. In the case of the polarization experiments, good results were obtained with eggs to determine resistivity. But the cost is still relatively high. We are trying to solve the problem by using the chemical methods. Leaf veins, egg white, and nail polish can be used as transparent metal networks with various, with regular or irregular lattices.

Transparent metal network electrodes have a wide range of applications, such as touch panels and smart windows.

Modern physics is the cutting-edge research on interdisciplinary subjects, such as physics, materials science, and chemistry. The physics paradigm has a great inspiration to the students. In problem solving, modern physics learns from nature, and this leads to bionics.

At the end of the lecture, Professor Liu said earnestly, “In the period of rejuvenation of the Chinese nation, no discipline can take a shortcut. In science, we need to lay a solid foundation and make steady progress. We also need to be bold in exploration and innovation.

This lecture was not only a feast of information on the latest development in physics, but also an unforgettable and inspiring class about our future life.