Development of Novel System Combining Scanning Tunneling Microscope-Based Cathodoluminescence and Electroluminescence Nanospectroscopies

作者：Watanabe Kentaro^*; Nakamura Yoshiaki; Kuboya Shigeyuki; Katayama Ryuji; Onabe Kentaro; Ichikawa Masakazu

来源：Japanese Journal of Applied Physics, 2011, 50(8): 08LB18.

DOI：10.1143/JJAP.50.08LB18

Novel system equipped with conductive optical fiber probe scanning tunneling microscope (STM) and bipolar sample holder is a powerful tool to characterize light-emitting devices by several STM-based techniques at the same sample position, which can realize photoluminescence (PL), cathodoluminescence (CL), electroluminescence (EL), and electron beam induced current (EBIC) measurements with higher spatial resolutions than conventional techniques. In this study, we developed a STM-CL/EL system which combines STM-CL technique for high CL excitation power and high spatial resolution and STM-EL technique for local EL collection. We demonstrated spatially resolved STM-CL/EL spectroscopy of GaAs/AlGaAs heterostructure (110) cross-sections.

• 出版日期2011-8