{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T09:47:32Z","timestamp":1791884852127,"version":"4.3.4"},"reference-count":53,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T00:00:00Z","timestamp":1791849600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T00:00:00Z","timestamp":1791849600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100002341","name":"Research Council of Finland","doi-asserted-by":"publisher","award":["357130"],"award-info":[{"award-number":["357130"]}],"id":[{"id":"10.13039\/501100002341","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Light\u2010driven phase transitions and transformations provide a route for post\u2010synthesis control of structure, charge order, ferroic polarization, chemistry, and local transport in 2D materials. Optical excitation can activate carrier dynamics, phonon coupling, heating, strain redistribution, vacancy formation, surface reactions, and substrate\u2010mediated effects during one experiment. Mechanistic assignment consequently requires separate identification of the process initiating conversion and the mechanism preserving the modified material. We organize representative experiments into seven practical classes based on the dominant experimentally supported mechanism and outline experimental criteria for distinguishing competing contributions. A quantitative workflow combines independent material verification, controlled perturbations, temporal measurements, and material\u2010specific descriptors of conversion and stabilization. Far\u2010field laser processing remains valuable for patterning and device fabrication, although diffraction\u2010limited illumination averages over nanoscale heterogeneity. Tip\u2010enhanced femtosecond excitation in scattering\u2010type scanning near\u2010field optical microscopy provides a complementary route by localizing excitation and linking nanoscale writing with local optical, structural, and chemical verification. Localized excitation can support reproducible ambient nanoscale phase control when excitation, phase identity, and retention are verified within one region.<\/jats:p>","DOI":"10.1002\/smll.76269","type":"journal-article","created":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T09:10:06Z","timestamp":1791882606000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Light\u2010Driven Phase Engineering in 2D Materials From Mechanistic Assignment to Ambient Near\u2010Field Control"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9308-130X","authenticated-orcid":false,"given":"Gour Mohan","family":"Das","sequence":"first","affiliation":[{"name":"Nanoscience Center, Department of Chemistry University of Jyv\u00e4skyl\u00e4  Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6880-2283","authenticated-orcid":false,"given":"Mika","family":"Pettersson","sequence":"additional","affiliation":[{"name":"Nanoscience Center, Department of Chemistry University of Jyv\u00e4skyl\u00e4  Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,10,13]]},"reference":[{"key":"e_1_2_15_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41578\u2010021\u201000304\u20100"},{"key":"e_1_2_15_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.202528026"},{"key":"e_1_2_15_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/smm2.1013"},{"key":"e_1_2_15_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202512683"},{"key":"e_1_2_15_6_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.2c00171"},{"key":"e_1_2_15_7_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.3c00132"},{"key":"e_1_2_15_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201804682"},{"key":"e_1_2_15_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202523698"},{"key":"e_1_2_15_10_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010025\u201067064\u20101"},{"key":"e_1_2_15_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/apxr.202500093"},{"key":"e_1_2_15_12_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsphotonics.4c02327"},{"key":"e_1_2_15_13_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jpclett.1c03704"},{"key":"e_1_2_15_14_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010023\u201044440\u20103"},{"key":"e_1_2_15_15_1","doi-asserted-by":"publisher","DOI":"10.1038\/nmat4080"},{"key":"e_1_2_15_16_1","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.110.L081108"},{"key":"e_1_2_15_17_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jpcc.3c08058"},{"key":"e_1_2_15_18_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202402907"},{"key":"e_1_2_15_19_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202110152"},{"key":"e_1_2_15_20_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.nanolett.5c03772"},{"key":"e_1_2_15_21_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.aab3175"},{"key":"e_1_2_15_22_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsnano.0c02649"},{"key":"e_1_2_15_23_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsnano.5b04623"},{"key":"e_1_2_15_24_1","doi-asserted-by":"publisher","DOI":"10.34133\/2020\/6581250"},{"key":"e_1_2_15_25_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.3c00931"},{"key":"e_1_2_15_26_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.4974072"},{"key":"e_1_2_15_27_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201805417"},{"key":"e_1_2_15_28_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsnano.0c03558"},{"key":"e_1_2_15_29_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.nanolett.5b01196"},{"key":"e_1_2_15_30_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598\u2010017\u201015350\u20104"},{"key":"e_1_2_15_31_1","doi-asserted-by":"publisher","DOI":"10.1039\/C4NR05207B"},{"key":"e_1_2_15_32_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsnano.5c00538"},{"key":"e_1_2_15_33_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12274\u2010020\u20102872\u2010z"},{"key":"e_1_2_15_34_1","doi-asserted-by":"publisher","DOI":"10.1126\/sciadv.aav4449"},{"key":"e_1_2_15_35_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010023\u201041291\u2010w"},{"key":"e_1_2_15_36_1","doi-asserted-by":"publisher","DOI":"10.1039\/C8NR06115G"},{"key":"e_1_2_15_37_1","doi-asserted-by":"publisher","DOI":"10.1038\/nmat4042"},{"key":"e_1_2_15_38_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41567\u2010021\u201001267\u20103"},{"key":"e_1_2_15_39_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41586\u2010018\u20100809\u20104"},{"key":"e_1_2_15_40_1","doi-asserted-by":"publisher","DOI":"10.1002\/smll.202205224"},{"key":"e_1_2_15_41_1","doi-asserted-by":"publisher","DOI":"10.1126\/sciadv.1500168"},{"key":"e_1_2_15_42_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.nanolett.9b00613"},{"key":"e_1_2_15_43_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.nanolett.9b01599"},{"key":"e_1_2_15_44_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsanm.0c01104"},{"key":"e_1_2_15_45_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41578\u2010018\u20100024\u20109"},{"key":"e_1_2_15_46_1","doi-asserted-by":"publisher","DOI":"10.34133\/2019\/4641739"},{"key":"e_1_2_15_47_1","doi-asserted-by":"publisher","DOI":"10.1063\/5.0223490"},{"key":"e_1_2_15_48_1","doi-asserted-by":"publisher","DOI":"10.1039\/B606706A"},{"key":"e_1_2_15_49_1","doi-asserted-by":"publisher","DOI":"10.1002\/lpor.200810044"},{"key":"e_1_2_15_50_1","doi-asserted-by":"publisher","DOI":"10.1002\/smsc.202500184"},{"key":"e_1_2_15_51_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41578\u2010024\u201000761\u20103"},{"key":"e_1_2_15_52_1","doi-asserted-by":"publisher","DOI":"10.1039\/C3CS60258C"},{"key":"e_1_2_15_53_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201804774"},{"key":"e_1_2_15_54_1","doi-asserted-by":"publisher","DOI":"10.1021\/nl301159v"}],"container-title":["Small"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/smll.76269","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/smll.76269","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/smll.76269","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T09:10:07Z","timestamp":1791882607000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/smll.76269"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,10,13]]},"references-count":53,"alternative-id":["10.1002\/smll.76269"],"URL":"https:\/\/doi.org\/10.1002\/smll.76269","archive":["Portico"],"relation":{},"ISSN":["1613-6810","1613-6829"],"issn-type":[{"value":"1613-6810","type":"print"},{"value":"1613-6829","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,10,13]]},"assertion":[{"value":"2026-07-27","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-10-08","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-10-13","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e76269"}}