GTIIT-STU optics seminar
Title: From 0 to 1: Nonvolatile Memory Organic Light-Emitting Transistors and AC-Driven Organic Light-emitting Tetrode
Speaker: Hong Meng
Peking University Shenzhen Graduate School, Peking University
Abstract
Display technology not only requires continuous exploration in material innovation, but more importantly, disruptive innovation in device structure can truly realize the vision of “Freedom to Operate” FTO. With the rapid development of OLED display technology towards large size, ultra-high definition and intelligence, higher requirements are placed on the integration and performance of pixel circuits. This report highlights two disruptive display device designs that have opened up new paths for the future development of display technology. Firstly, we have proposed a ferroelectric memory organic light-emitting transistor (Fe-OLET) that integrates switching, light-emitting, and storage functions. This original device structure design not only significantly simplifies the pixel circuit structure and increases integration density, but also reduces the cost of technology application and display product development through the FTO strategy, making full use of existing OLED material technology. Secondly, we introduce an AC-driven organic light-emitting tetrode with an open electrode structure. This device subverts the design paradigm of traditional closed electrodes, and forms a highly open and flexible device structure through the planar electrode layout. This innovation in the device structure not only improves the designability and adaptability of devices, but also brings new application opportunities and imagination to cutting-edge fields such as human-machine interface, flexible display, and smart devices. The two original display devices presented in this report together provide a new direction for the global innovation and application of display technology.
About the Speaker:
Prof. Hong Meng received his Ph.D from University of California Los Angeles (UCLA) in 2002.He has been working in the field of organic electronics for more than 20 years. His career experiences including working in the Institute of Materials Science and Engineering (IMRE) at Singapore, Lucent Technologies Bell Labs, DuPont Experimental Station. In 2014, he came to Peking University Shenzhen Graduate School, and has led the construction of 6 provincial and municipal laboratories including the International Joint Research Center for Optoelectronic Material and Device Technology (Guangdong Province), the Guangdong OLED Key Materials and Device Engineering Technology Research Center, the Shenzhen Key Laboratory of Organic Optoelectromagnetic Functional Materials, the Shenzhen OLED Materials and Device Process Engineering Research Center, etc. His research areas include organic optoelectronic material design and synthesis, OLED, OEC, OTFT, OLET, OPV, Organic Sensor, Organic Memory, and supercapacitors. He has published more than 270 papers with Google Scholar H-index of 64 and 6 academic books, and obtained over 100 Chinese patents and 20 US patents. He was selected as the “Lifetime Scientific Influence” list of the world’s top 2% scientists and the “Annual Scientific Influence” list of the world’s top 2% scientists released by Elsevier.