1. Creation of (a) clean, (b) high-density, (c) aligned (d) semiconducting nanotube arrays (e) in a wafer scale: Nanotube Wafers
1.1. Preferential growth of semiconducting nanotubes
[1] K. Otsuka et al., "Digital Isotope Coding to Trace Growth Process of Individual Single-Walled Carbon Nanotubes," ACS Nano, 12, 3994 (2018).
[2] K. Otsuka et al., "Universal Map of Gas-Dependent Kinetic Selectivity in Carbon Nanotube Growth," ACS Nano 16, 5627 (2022).
1.2 . Improvement of nanotube density and uniformity
[3] B. Koyano et al., "Regrowth and catalytic etching of individual single-walled carbon nanotubes studied by isotope labeling and growth interruption," Carbon, 155, 635 (2019).
[4] Ishimaru et al., "Carbon Dioxide Triggers Carbon Nanotube Nucleation: Isotope Labeling Study on the Growth Process of Individual Nanotubes,", ECS J. Solid State Sc., online (2022).
1.3. Selective removal of metallic nanotubes
[5] K. Otsuka et al., "Selective removal of metallic single-walled carbon nanotube in full length by organic film-assisted electrical breakdown," Nanoscale, 6, 8831-8835 (2014).
[6] K. Otsuka et al., "On-Chip Sorting of Long Semiconducting Carbon Nanotubes for Multiple Transistors along an Identical Array," ACS Nano, 11, 11497 (2017).
2. Carbon nanotubes as quantum light emitters
[1] D. Yamashita et al., "Waveguide coupled cavity-enhanced light emission from individual carbon nanotubes," APL Photonics, 6, 031302 (2021).
[2] D. Kozawa et al., "Formation of Organic Color Centers in Air-Suspended Carbon Nanotubes Using Vapor-Phase Reaction," arXiv:2103.00689 (2021).
[3] Z. Li et al., "Quantum Emission Assisted by Energy Landscape Modification in Pentacene-Decorated Carbon Nanotubes," ACS Photonics, 8, 2367 (2021).
3. Manipulation of single isolated nanomaterials
[1] K. Otsuka et al., "Deterministic transfer of optical-quality carbon nanotubes for atomically defined technology," arXiv:2012.01741 (2020).