Lei Lu

Lei Lu

Peking University, Professor

Lei Lu is a tenured associate professor and doctoral supervisor at Peking University. He serves as a member of the International Society for Information Display (SID), a Young Scientist in the National Key R&D Program, and an inaugural Young Leader of the Chinese and Korean Display Societies. He holds multiple leadership roles, including Deputy Director of the Guangdong Oxide Integration Technology Engineering Center, Director of the Shenzhen Flexible Electronics Concept Verification Center (among the first batch established), and Vice Chairman of the IEEE Solid-State Devices and Integrated Circuits Shenzhen Chapter.

He earned his Ph.D. in Electronic and Computer Engineering from The Hong Kong University of Science and Technology in 2015 and subsequently served as a Research Assistant Professor there before joining Peking University in 2019. His research focuses on oxide semiconductors, thin-film devices, advanced displays, and flexible electronics, with over 100 published papers and more than 20 authorized Chinese and U.S. patents to his credit. He has contributed to several key publications and standards, including co-authoring The National Heavyweight Publishing Project: Flexible Display Technology and The White Paper on the Development of New Display Industry Technology, as well as participating in the formulation of flexible display industry standards.

In 2023, he won first prize (top ranking) in the 8th China Innovation Challenge. In 2024, he was selected for the China Association for Science and Technology's "Science and Technology Innovation China" Pioneer Technology List and the National Academy of Administration (Central Party School) Science and Innovation Special Program. He has also been featured in special reports by China Central Television, such as "Oriental Horizon—New Quality Productive Forces in China" and "Economic News Broadcast—Go, Science and Innovation Pioneers."

Recent Advancements of High-Mobility Thin-Film Transistors

Abstract：

As new display technologies evolve towards multi-dimensional upgrades such as larger sizes, higher resolution, higher pixel density, flexibility, and low power consumption, higher demands are placed on the large-area uniformity, mobility, on-off ratio, low-temperature processing, flexibility, and stability of thin-film transistors (TFTs). Particularly, next-generation light-emitting devices represented by OLEDs and Micro-LEDs have an urgent need for ultra-high mobility TFTs.

This presentation will begin by reviewing the evolution of TFT technology from amorphous silicon to polycrystalline silicon and oxide semiconductors. It will then introduce the key semiconductor physical mechanisms that constrain the improvement of TFT mobility, analyze the potential for further enhancing the mobility of low-temperature polycrystalline silicon (LTPS) TFTs, and focus on technical approaches for synergistically improving both the mobility and stability of oxide TFTs. Finally, it will explore the development prospects of high-mobility TFT technology in the field of new displays and other semiconductor industries.