Join

Program Scientific Program
POS5-1100

Large-Scale Indium Selenides Transistors for High-Performance Flexible Electronics

When and Where

Nov 30, -0001   00:00 - 00:00

Presenter(s)

Heeseol Jeon (Korea Research Institute of Chemical Technology)

Co-Author(s)

Jaeyun Lee (Pohang University of Science and Technology), Ki Seok An (Korea Research Institute of Chemical Technology), Yong Young Noh (Pohang University of Science and Technology)

Abstract

Ultrathin indium selenides (InSe and κ-In2Se3) are attractive two-dimensional (2D) semiconductors for flexible electronics, offering high intrinsic carrier mobility and unique polymorphic properties. Unlike conventional 2D transition metal dichalcogenides (TMDs) that require high-temperature growth, these materials can be deposited by thermal evaporationa scalable, low-temperature process well-suited to flexible substrates.
Here, we report the successful fabrication of indium selenide thin-film transistors and logic circuits on flexible substrates using thermally deposited, wafer-scale (4-inch) films. Through optimized deposition and interface engineering, we achieved high device yield across the wafer, along with strong electrical performance (high mobility, on/off ratio) and stable operation under repeated mechanical bending. We also demonstrate flexible logic circuits, including inverters, showing this platform’s potential for scalable, high-performance flexible electronics.
 
Supported by
Korea Tourism Organization BUSAN TOURISM ORGANIZATION
Sponsored by
Korea Research Institute of Chemical Technology Advanced Materials Division Sejin CI DONGJIN SEMICHEM HAEDONG SCIENCE FOUNDATION COSMAX EcoProBM Young Eng. Sci. Doosan SAMSUNG SDI S-OIL 한국도레이과학진흥재단