{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,5]],"date-time":"2026-11-05T06:38:24Z","timestamp":1793860704873,"version":"4.6.1"},"reference-count":42,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2025,7,16]],"date-time":"2025-07-16T00:00:00Z","timestamp":1752624000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation of China","award":["12264057"],"award-info":[{"award-number":["12264057"]}]},{"name":"National Natural Science Foundation of China","award":["52262042"],"award-info":[{"award-number":["52262042"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>This paper investigates strain-, twist-, and electric-field-tuned optical absorption in bilayer MoS2, emphasizing spin-orbit coupling (SOC). A continuum model reveals competing mechanisms: geometric perturbations (strain\/twist) and Stark effects govern one-\/two-photon absorption, with critical thresholds (~9% strain, ~2.13\u00b0 twist) switching spin-independent to spin-polarized regimes. Strain gradients and twist enhance nonlinear responses through symmetry-breaking effects while electric fields dynamically modulate absorption via band alignment tuning. By linking parameter configurations to absorption characteristics, this work provides a framework for designing tunable spin-resolved optoelectronic devices and advancing light\u2013matter control in 2D materials.<\/jats:p>","DOI":"10.3390\/nano15141100","type":"journal-article","created":{"date-parts":[[2025,7,16]],"date-time":"2025-07-16T08:24:17Z","timestamp":1752654257000},"page":"1100","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Spin-Orbit-Coupling-Governed Optical Absorption in Bilayer MoS2 via Strain, Twist, and Electric Field Engineering"],"prefix":"10.3390","volume":"15","author":[{"given":"Lianmeng","family":"Yu","sequence":"first","affiliation":[{"name":"School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China"},{"name":"School of Mathematics and Information Technology, Lijiang Normal University, Lijiang 674100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yingliang","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weibin","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peizhi","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Energy and Environmental Science, Yunnan Normal University, Kunming 650500, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9806-8905","authenticated-orcid":false,"given":"Xiaobo","family":"Feng","sequence":"additional","affiliation":[{"name":"School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,7,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"571","DOI":"10.1038\/nature06037","article-title":"Electronic spin transport and spin precession in single graphene layers at room temperature","volume":"448","author":"Tombros","year":"2007","journal-title":"Nature"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"109","DOI":"10.1103\/RevModPhys.81.109","article-title":"The electronic properties of graphene","volume":"81","author":"Neto","year":"2009","journal-title":"Rev. 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