| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Emergent Materials under Extremes and Decisive In Situ Characterizations
|
| Presentation Title |
Evolution of Structure, Electrical, and Optical Properties in Ti-doped In2O3 Nanocrystals under Pressure |
| Author(s) |
Xuqiang Liu, Yandong Wang , Wenge Yang |
| On-Site Speaker (Planned) |
Xuqiang Liu |
| Abstract Scope |
Metal-doped In2O3 oxides have been widely used in transparent conductive devices with their excellent electrical and optical properties. Improving conductivity would promote huge industrial market for advanced applications. Here we report our systematical investigations of the Ti-doped In2O3 on the crystalline structure, electric conductivity and optical band gap under high pressure and the excellent promotion on the properties after pressure treatment. The Ti-doped In2O3 nanocrystals undergoes a structural phase transition (b-TIO to c-TIO) beyond 17.5 GPa, and the high pressure c-TIO phase can be quenched to ambient conditions. The pressure treated c-TIO shows two orders of magnitude enhancement in electric conductivity without much degradation on the optical transparency. These findings not only help us to understand the pressure effects on the crystalline structure, electrical and optical properties of metal-doped Ti-doped In2O3 oxides under extreme conditions but also provide a practical route to synthesize new transparent conductive materials with better performance. |