Anomalous Phonon Softening with Inherent Strain in Wrinkled Monolayer WSe <sub>2</sub> (Adv. Mater. 35/2025)
Novel Strain Indicator In article number 2419414, Mun Seok Jeong and co-workers identify a new strain indicator in monolayer WSe2 using tip-enhanced Raman spectroscopy. The strain sensitivity of the newly revealed Raman-inactive out-of-plane A2″(Γ) mode was clearly demonstrated through both experimental and theoretical approaches. Specifically, density functional theory (DFT)-based analysis elucidating the origin of selection rule relaxation (attributed to strain-induced polarizability changes) provides robust support for establishing this mode as a novel phonon-based strain indicator.
Authors
- Yo Seob Won (ORCID: https://orcid.org/0000-0002-0473-8833)
- Jaekak Yoo (ORCID: https://orcid.org/0000-0002-8080-8362)
- Byeong Geun Jeong (ORCID: https://orcid.org/0000-0003-0662-1820)
- Ki Kang Kim (ORCID: https://orcid.org/0000-0003-1008-6744)
- Dong‐Joon Yi (ORCID: https://orcid.org/0000-0001-5798-3931)
- Hyeong Chan Suh
- Mun Seok Jeong (ORCID: https://orcid.org/0000-0002-7019-8089)
- Chanwoo Lee (ORCID: https://orcid.org/0000-0001-7630-2927)
- Dong Hyeon Kim (ORCID: https://orcid.org/0000-0002-5953-8433)
- Seung Mi Lee (ORCID: https://orcid.org/0000-0002-5956-5853)
- Dongki Lee (ORCID: https://orcid.org/0000-0002-4294-091X)
- Eui Kwan Koh
- Sung Hyuk Kim
Institutions
- Korea Research Institute of Standards and Science (KR)
- Institute of Nanotechnology (GB)
- Korea Basic Science Institute (KR)
- Korea Advanced Nano Fab Center (KR)
- Hanyang University (KR)
- Sungkyunkwan University (KR)
Publication Details
- Journal
- Advanced Materials
- Published
- 2025-09-01
- DOI
- https://doi.org/10.1002/adma.70383
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00