N. Fang, Y. R. Chang, S. Fujii, D. Yamashita, M. Maruyama, Y. Gao, C. F. Fong, D. Kozawa, K. Otsuka, K. Nagashio, et al. Room-temperature quantum emission from interface excitons in mixed-dimensional heterostructures. Nature Communications. 2024. 15. 1
Shuhui Wang, Dmitry I. Levshov, Keigo Otsuka, Bo-Wen Zhang, Yongjia Zheng, Ya Feng, Ming Liu, Esko I. Kauppinen, Rong Xiang, Shohei Chiashi, et al. Evaluating the Efficiency of Boron Nitride Coating in Single-Walled Carbon-Nanotube-Based 1D Heterostructure Films by Optical Spectroscopy. ACS Nano. 2024
Keigo Otsuka, Taiki Sugihara, Taiki Inoue, Weijie Jia, Satoru Matsushita, Takanobu Saito, Minhyeok Lee, Takashi Taniguchi, Kenji Watanabe, Gregory Pitner, et al. Coaxial boron nitride nanotubes as interfacial dielectric layers to lower interface trap density in carbon nanotube transistors. Nano Research. 2023. 16. 11. 12840-12848
Satoru Matsushita, Keigo Otsuka, Taiki Sugihara, Guangyao Zhu, Kasidis Kittipaisalsilpa, Minhyeok Lee, Rong Xiang, Shohei Chiashi, Shigeo Maruyama. Horizontal Arrays of One-Dimensional van der Waals Heterostructures as Transistor Channels. ACS Applied Materials & Interfaces. 2023
M. Kosugi, R. Obata, K. Otsuka, K. Kuroyama, S. Du, S. Maruyama, K. Hirakawa, J. Haruyama. Electrical hysteresis characteristics in photogenerated currents on laser-beam-derived in-plane lateral 1D MoS2-Schottky junctions. AIP Advances. 2022