Publications (58)
Probing Charge Dynamics in Amorphous Oxide Semiconductors by Time-of-flight Microwave Impedance Microscopy
Jia Yu, Yuchen Zhou, Xiao Wang +3
The unique electronic properties of amorphous indium gallium zinc oxide (a-IGZO) thin films are closely associated with the complex charge dynamics of the materials. Conventional s…
Opto-electronic properties of alpha-In2Se3: single-layer to bulk
Yujin Cho, Sean M. Anderson, Bernardo S. Mendoza +8
In this work, we report linear and non-linear spectroscopic measurements of chemically-grown layered (from one to 37 quintuple layers) and bulk alpha-In2Se3 samples over a photon e…
Direct Imaging of Nanoscale Conductance Evolution in Ion-Gel-Gated Oxide Transistors
Yuan Ren, Hongtao Yuan, Xiaoyu Wu +5
Electrostatic modification of functional materials by electrolytic gating has demonstrated a remarkably wide range of density modulation, a condition crucial for developing novel e…
Thermal Oxidation of WSe2 Nano-sheets Adhered on SiO2/Si Substrates
Yingnan Liu, Cheng Tan, Harry Chou +11
Due to the drastically different intralayer versus interlayer bonding strengths, the mechanical, thermal, and electrical properties of two-dimensional (2D) materials are highly ani…
Microwave Conductivity of Ferroelectric Domains and Domain Walls in Hexagonal Rare-earth Ferrite
Xiaoyu Wu, Kai Du, Lu Zheng +3
We report the nanoscale electrical imaging results in hexagonal single crystals using conductive atomic force microscopy (C-AFM) and scanning microwave impe…
Direct Imaging of Sketched Conductive Nanostructures at the LaAlO3/SrTiO3 Interface
Zhanzhi Jiang, Xiaoyu Wu, Hyungwoo Lee +6
Nanoscale control of the quasi-two-dimensional electron gas at the LaAlO3/SrTiO3 (LAO/STO) interface by a conductive probe tip has triggered the development of a number of electron…