학술논문
Surface Oxidisation Layer Identification of Indium Nitride Nanoparticles via s-SNOM
Document Type
Conference
Source
2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2023 48th International Conference on. :1-2 Sep, 2023
Subject
Language
ISSN
2162-2035
Abstract
InN materials have been widely used in optoelectronic devices, namely red LEDs. However, the surface oxidization introduced during growth and by air exposure can change their bandgap and mobility drastically, affecting device performance. In this study, we employed a surface-sensitive technique, scattering-type scanning near-field optical microscopy (s-SNOM) to investigate the oxidization level of InN nanoparticles and demonstrate how tapping amplitude and demodulation order affect the near-field response.