# Chemically Tailored Semiconductor Moiré Superlattices of Janus Heterobilayers https://mdr.nims.go.jp/datasets/97d6f943-9257-4eaa-be54-1b781ade8410 ## File - [Small Structures - 2024 - Zhang - Chemically Tailored Semiconductor Moir Superlattices of Janus Heterobilayers.pdf](https://mdr.nims.go.jp/filesets/5ed4f626-cfd1-484e-bff3-3d6ff9a454b9/download) ([Detail](https://mdr.nims.go.jp/filesets/5ed4f626-cfd1-484e-bff3-3d6ff9a454b9.md)) ## Id 97d6f943-9257-4eaa-be54-1b781ade8410 ## Local identifier ## Visibility open_to_public ## State published ## Created at 2025-02-18T00:10:03.980725Z ## Updated at 2025-02-23T13:45:58.031996Z ## Published at 2025-02-23T13:45:58.390662Z ## Doi ## First published url https://doi.org/10.1002/sstr.202300514 ## Date published 2024-03-02 ## Recorded date published 2024-5 ## Resource type journal_article ## Manuscript type vor ## Collection ## Title - title: Chemically Tailored Semiconductor Moiré Superlattices of Janus Heterobilayers title_type: original lang: en ## Description - description: Moiré superlattices based on van der Waals layered materials have attracted significant attention due to their rich quantum phenomena and potential applications in optoelectronics. As a building block for moiré superlattices, Janus monolayers of transition metal dichalcogenides (TMDCs) are promising because of their out-of-plane structural asymmetry and associated built-in electric field, which is predicted to lead to the modulation of optical dipole interactions and high-temperature exciton condensation states. However, the moiré superlattice structure of Janus heterobilayers and their excitonic properties have yet to be investigated experimentally. Here we report the structure analysis and excitonic properties of moiré superlattice of chemically-tailored Janus heterobilayers. The Janus heterobilayer MoSSe/MoSe2 (or WSSe/WSe2) was fabricated by replacement of top layer Se atoms with S atoms in bilayer MoSe2 (or WSe2) by plasma treatment. An average moiré period of approximately 13 nm was formed by lattice mismatch as revealed by scanning transmission electron microscopy (STEM) observations. Cryogenic temperature PL spectra show sharp, near-infrared emissions, which can be assigned to excitons trapped by moiré potentials from comparison with first-principles calculation results. Our work provides a new class moiré material for studying tunable excitonic systems and related quantum phenomena. description_type: abstract lang: und ## Creator - name: Wenjin Zhang role: author - name: Zheng Liu role: author - name: Hiroshi Nakajo role: author - name: Soma Aoki role: author - name: Haonan Wang role: author - name: Yanlin Wang role: author - name: Yanlin Gao role: author - name: Mina Maruyama role: author - name: Takuto Kawakami role: author - name: Yasuyuki Makino role: author - name: Masahiko Kaneda role: author - name: Tongmin Chen role: author - name: Kohei Aso role: author - name: Tomoya Ogawa role: author - name: Takahiko Endo role: author - name: Yusuke Nakanishi role: author - name: Kenji Watanabe role: author orcid: https://orcid.org/0000-0003-3701-8119 organization: National Institute for Materials Science ror: https://ror.org/026v1ze26 - name: Takashi Taniguchi role: author orcid: https://orcid.org/0000-0002-1467-3105 organization: National Institute for Materials Science ror: https://ror.org/026v1ze26 - name: Yoshifumi Oshima role: author - name: Yukiko Yamada‐Takamura role: author - name: Mikito Koshino role: author - name: Susumu Okada role: author - name: Kazunari Matsuda role: author - name: Toshiaki Kato role: author - name: Yasumitsu Miyata role: author ## Contact agent ## Publisher organization: Wiley ## Managing organization ## Keyword - subject: Single-layer graphene schema: not_defined - subject: molecular beam epitaxy schema: not_defined - subject: hexagonal boron nitride schema: not_defined ## Rights - identifier: https://creativecommons.org/licenses/by/4.0/ ## Other identifier(s) ## Data origin - data_origin_type: other ## Embargo ## Journal - title: Small Structures issn: '26884062' volume: '5' issue: '5' article_number: '2300514' ## Conference ## Related item ## Funding - identifier: JP20H00127 funder_name: Japan Society for the Promotion of Science - identifier: JP21H05232 funder_name: Japan Society for the Promotion of Science - identifier: JP21H05233 funder_name: Japan Society for the Promotion of Science - identifier: JP21H05234 funder_name: Japan Society for the Promotion of Science - identifier: JP21H05235 funder_name: Japan Society for the Promotion of Science - identifier: JP21H05236 funder_name: Japan Society for the Promotion of Science - identifier: JP22H00280 funder_name: Japan Society for the Promotion of Science - identifier: JP22H00283 funder_name: Japan Society for the Promotion of Science - identifier: JP22K18986 funder_name: Japan Society for the Promotion of Science - identifier: JP22H04957 funder_name: Japan Society for the Promotion of Science - identifier: JP22H05441 funder_name: Japan Society for the Promotion of Science - identifier: JP22KJ2561 funder_name: Japan Society for the Promotion of Science - identifier: JP23K13635 funder_name: Japan Society for the Promotion of Science - identifier: JP23H02052 funder_name: Japan Society for the Promotion of Science - identifier: JP23H01807 funder_name: Japan Society for the Promotion of Science - identifier: JPMJCR20T3 funder_name: Core Research for Evolutional Science and Technology - identifier: JPMJFR213X funder_name: Core Research for Evolutional Science and Technology - identifier: JPMJPR23H5 funder_name: Precursory Research for Embryonic Science and Technology - identifier: JP19H00664 funder_name: Japan Society for the Promotion of Science - identifier: JP20H00354 funder_name: Japan Society for the Promotion of Science - identifier: JP20H05664 funder_name: Japan Society for the Promotion of Science - identifier: JP20K14415 funder_name: Japan Society for the Promotion of Science - identifier: JP20H01840 funder_name: Japan Society for the Promotion of Science ## Instrument ## Instrument operator ## Instrument managing organization ## Measurement method ## Specimen ## Chemical composition ## Structure for specimen ## Structural feature for specimen ## Specific property for specimen ## Process for specimen treatment ## Computational method ## Energy level/transition state ## Software ## Custom property ## Fileset - id: 5ed4f626-cfd1-484e-bff3-3d6ff9a454b9 filename: Small Structures - 2024 - Zhang - Chemically Tailored Semiconductor Moir Superlattices of Janus Heterobilayers.pdf content_type: application/pdf size: 1389985 md5: eeb47ca8eefe766f008cb2969cbb775b ## Thumbnail fileset_id: 5ed4f626-cfd1-484e-bff3-3d6ff9a454b9 filename: Small Structures - 2024 - Zhang - Chemically Tailored Semiconductor Moir Superlattices of Janus Heterobilayers.pdf