Development of novel system combining scanning tunneling microscope-based cathodoluminescence and electroluminescence nanospectroscopies

Kentaro Watanabe, Yoshiaki Nakamura, Shigeyuki Kuboya, Ryuji Katayama, Kentaro Onabe, Masakazu Ichikawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Article number08LB18
JournalJapanese journal of applied physics
Volume50
Issue number8 PART 4
DOIs
Publication statusPublished - 2011 Aug 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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