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21 papers
Broadband Solar Selective Absorber with Dallenbach-type Bilayer Structure Achieved Using Carbon Nanotube Membranes with Tailored Optical Spectra
Hengkai Wu, Taishi Nishihara, Mioko Hizukuri +3
Spectrally selective absorbers that maximize solar absorption and minimize thermal radiation loss are crucial for efficient solar thermal energy harvesting. However, limitations im…
Exciton thermal radiation from structure-sorted carbon nanotube membranes
Akiteru Takahashi, Kaichi Teranishi, Shonosuke Takaichi +2
Owing to their small binding energies, excitons in bulk semiconductors typically exhibit a sharp optical peak at low temperatures only. This limitation can be overcome by single-wa…
Moiré exciton dynamics and moiré exciton-phonon interaction in a WSe/MoSe heterobilayer
Keisuke Shinokita, Yuhei Miyauchi, Kenji Watanabe +2
Moiré patterns with angular mismatch in van der Waals heterostructures composed of atomically thin semiconducting materials are a fascinating platform to engineer the optically gen…
Exciton diffusion in a hBN-encapsulated monolayer MoSe2
T. Hotta, S. Higuchi, A. Ueda +7
Excitons, quasi particles composed of an electron and a hole, play an important role in optical responses in low-dimensional nanostructures. In this work, we have investigated exci…
Observation of drastic electronic structure change in one-dimensional moiré crystals
Sihan Zhao, Pilkyung Moon, Yuhei Miyauchi +3
We report the first experimental observation of strong coupling effect in one-dimensional moiré crystals. We study one-dimensional double-wall carbon nanotubes (DWCNTs) in which va…
Anisotropic Optical Properties of Layered Germanium Sulfide
Dezhi Tan, Hong En Lim, Feijiu Wang +7
Two-dimensional (2D) layered materials, transition metal dichalcogenides and black phosphorus, have attracted much interest from the viewpoints of fundamental physics and device ap…