Manato Tateno, Ryotaro Nakazawa, Masahiro Ohara, Hisao Ishii. The Electronic Structure and Tunneling Process of Carbon Nanotubes Observed Using High-sensitivity Ultraviolet Photoelectron Spectroscopy and Field Emission Spectroscopy. e-Journal of Surface Science and Nanotechnology. 2024
Ryotaro Nakazawa, Atsushi Matsuzaki, Kohei Shimizu, Ikuko Nakamura, Emi Kawashima, Seiji Makita, Kiyohisa Tanaka, Satoshi Yasuno, Haruki Sato, Hiroyuki Yoshida, et al. Reliable measurement of the density of states including occupied in-gap states of an amorphous In-Ga-Zn-O thin film via photoemission spectroscopies: Direct observation of light-induced in-gap states. Journal of Applied Physics. 2024
Kohei Shimizu, Hiroshi Tokairin, Ryotaro Nakazawa, Ikuko Nakamura, Satoshi Yasuno, Keitaro Ikegami, Yuki Yamaguchi, Yuya Tanaka, Hisao Ishii. Study of the effect of density of states distribution on carrier injection at organic/electrode interface through high-sensitivity photoemission spectroscopy and injection simulation. Applied Physics Express. 2022
Ryotaro Nakazawa, Atsushi Matsuzaki, Kohei Shimizu, Emi Kawashima, Mojtaba Abdi-Jalebi, Samuel D. Stranks, Yuya Tanaka, Hiroshi Tokairin, Hisao Ishii. In-gap states of an amorphous In-Ga-Zn-O thin film studied via high-sensitivity ultraviolet photoemission spectroscopy using low-energy photons. Applied Physics Express. 2021
講演・口頭発表等 (8件)：
Density of States of In-gap States of Organic Semiconductors Determined by Photoemission Total and Partial Yield Spectroscopies using Low-energy Photons: Observation of the Initial Density of States, Exciton Fusions, and Negative-Polarons
(ThinFilm2024 2024)
In-gap States of Inorganic and Organic Electronic Materials Studied by High Sensitivity UV Photoemission Spectroscopy
(MRM2023/IUMRS-ICA2023 2023)
Direct Observation of Weak In-gap States of Cu2O and CuO Thin Films Studied via Constant Final State Yield Spectroscopy
(MRM2023/IUMRS-ICA2023 2023)
Observation of Gap States and Excited States in Polar Organic Semiconductor Films Using Photoelectron Yield Measurement with Deep UV Light
(The 14th Japan-China Joint Symposium on Conduction and Photoconduction in Organic Solids and Related Phenomena 2023)
Field Emission from Carbon Nanotube Deposited with an Organic Buffer Layer Studied by Using Simultaneous Field Emission and UV-Photoelectron Spectroscopies
(The 14th International Vacuum Electron Sources Conference(IVESC 2023) 2023)
