{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,18]],"date-time":"2026-03-18T14:24:13Z","timestamp":1773843853978,"version":"3.50.1"},"reference-count":40,"publisher":"Wiley","issue":"27","license":[{"start":{"date-parts":[[2024,3,27]],"date-time":"2024-03-27T00:00:00Z","timestamp":1711497600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2024,3,27]],"date-time":"2024-03-27T00:00:00Z","timestamp":1711497600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100004329","name":"Javna Agencija za Raziskovalno Dejavnost RS","doi-asserted-by":"publisher","award":["N2\u20100107"],"award-info":[{"award-number":["N2\u20100107"]}],"id":[{"id":"10.13039\/501100004329","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004329","name":"Javna Agencija za Raziskovalno Dejavnost RS","doi-asserted-by":"publisher","award":["N2\u20100213"],"award-info":[{"award-number":["N2\u20100213"]}],"id":[{"id":"10.13039\/501100004329","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004329","name":"Javna Agencija za Raziskovalno Dejavnost RS","doi-asserted-by":"publisher","award":["Z2\u20104467"],"award-info":[{"award-number":["Z2\u20104467"]}],"id":[{"id":"10.13039\/501100004329","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"published-print":{"date-parts":[[2024,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Materials with tunable negative electromagnetic performance, i.e., where dielectric permittivity becomes negative, have long been pursued in materials research due to their peculiar electromagnetic (EM) characteristics. Here, this promising feature is reported in materials on the case of plasma\u2010synthesized nitrogen\u2010doped graphene sheets with tunable permittivity over a wide (1\u201340\u00a0GHz) frequency range. Selectively incorporated nitrogen atoms in a graphene scaffold tailor the electronic structure in a way that provides an ultra\u2010low energy (0.5\u20132\u00a0eV) 2D surface plasmon excitation, leading to subunitary and negative dielectric constant values in the Ka\u2010band, from 30 up to 40\u00a0GHz. By allowing the tailoring of structures at atomic scale, this novel plasma\u2010based approach creates a new paradigm for designing 2D nanomaterials like nanocarbons with controllable and tunable permittivity, opening a path to the next generation of 2D metamaterials.<\/jats:p>","DOI":"10.1002\/smll.202303421","type":"journal-article","created":{"date-parts":[[2024,3,27]],"date-time":"2024-03-27T07:53:41Z","timestamp":1711526021000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Plasma\u2010Driven Tuning of Dielectric Permittivity in Graphene"],"prefix":"10.1002","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9444-0159","authenticated-orcid":false,"given":"Elena","family":"Tatarova","sequence":"first","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear Instituto Superior T\u00e9cnico Universidade de Lisboa  Lisboa 1049 Portugal"}]},{"given":"Ana","family":"Dias","sequence":"additional","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear Instituto Superior T\u00e9cnico Universidade de Lisboa  Lisboa 1049 Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6537-3217","authenticated-orcid":false,"given":"Plamen","family":"Dankov","sequence":"additional","affiliation":[{"name":"Faculty of Physics Sofia University  Sofia 1164 Bulgaria"}]},{"given":"Jivko","family":"Kissovski","sequence":"additional","affiliation":[{"name":"Faculty of Physics Sofia University  Sofia 1164 Bulgaria"}]},{"given":"Ana Maria","family":"Botelho do Rego","sequence":"additional","affiliation":[{"name":"BSIRG iBB\u2013Institute for Bioengineering and Biosciences Department of Chemical Engineering (DEQ) and Associate Laboratory i4HB\u2013Institute for Health and Bioeconomy Instituto Superior T\u00e9cnico Universidade de Lisboa  Lisbon 1049\u2010001 Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5534-5805","authenticated-orcid":false,"given":"Neli","family":"Bundaleska","sequence":"additional","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear Instituto Superior T\u00e9cnico Universidade de Lisboa  Lisboa 1049 Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1242-2772","authenticated-orcid":false,"given":"Edgar","family":"Felizardo","sequence":"additional","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear Instituto Superior T\u00e9cnico Universidade de Lisboa  Lisboa 1049 Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2571-7863","authenticated-orcid":false,"given":"Miroslav","family":"Abrashev","sequence":"additional","affiliation":[{"name":"Faculty of Physics Sofia University  Sofia 1164 Bulgaria"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6784-6540","authenticated-orcid":false,"given":"Ana Maria","family":"Ferraria","sequence":"additional","affiliation":[{"name":"BSIRG iBB\u2013Institute for Bioengineering and Biosciences Department of Chemical Engineering (DEQ) and Associate Laboratory i4HB\u2013Institute for Health and Bioeconomy Instituto Superior T\u00e9cnico Universidade de Lisboa  Lisbon 1049\u2010001 Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3931-5635","authenticated-orcid":false,"given":"Thomas","family":"Strunskus","sequence":"additional","affiliation":[{"name":"Institute for Materials Science Christian Albrechts Universitaet zu Kiel  24118 Kiel Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1581-9970","authenticated-orcid":false,"given":"Vasyl","family":"Shvalya","sequence":"additional","affiliation":[{"name":"Department of Gaseous Electronics (F6) Jo\u017eef Stefan Institute  Ljubljana 1000 Slovenia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5241-5481","authenticated-orcid":false,"given":"Neelakandan M.","family":"Santhosh","sequence":"additional","affiliation":[{"name":"Department of Gaseous Electronics (F6) Jo\u017eef Stefan Institute  Ljubljana 1000 Slovenia"}]},{"given":"Ivan Valeriev","family":"Ivanov","sequence":"additional","affiliation":[{"name":"Faculty of Physics Sofia University  Sofia 1164 Bulgaria"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3066-4644","authenticated-orcid":false,"given":"Martin","family":"Ko\u0161i\u010dek","sequence":"additional","affiliation":[{"name":"Department of Gaseous Electronics (F6) Jo\u017eef Stefan Institute  Ljubljana 1000 Slovenia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8822-4089","authenticated-orcid":false,"given":"Janez","family":"Zava\u0161nik","sequence":"additional","affiliation":[{"name":"Department of Gaseous Electronics (F6) Jo\u017eef Stefan Institute  Ljubljana 1000 Slovenia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2677-574X","authenticated-orcid":false,"given":"Luis Lemos","family":"Alves","sequence":"additional","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear Instituto Superior T\u00e9cnico Universidade de Lisboa  Lisboa 1049 Portugal"}]},{"given":"Bruno","family":"Gon\u00e7alves","sequence":"additional","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear Instituto Superior T\u00e9cnico Universidade de Lisboa  Lisboa 1049 Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1957-0789","authenticated-orcid":false,"given":"Uro\u0161","family":"Cvelbar","sequence":"additional","affiliation":[{"name":"Department of Gaseous Electronics (F6) Jo\u017eef Stefan Institute  Ljubljana 1000 Slovenia"}]}],"member":"311","published-online":{"date-parts":[[2024,3,27]]},"reference":[{"key":"e_1_2_7_1_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1096796"},{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.4018\/978-1-5225-4180-6"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-022-33652-8"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.2528\/PIERL12070311"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.3390\/s121115841"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.matlet.2018.12.087"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1364\/OE.21.009144"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1369-7021(09)70314-1"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1051\/epjam\/2021005"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.scriptamat.2020.08.027"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.compositesa.2020.106132"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/mame.201900709"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1051\/epjam\/2020019"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jpcc.9b06753"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1039\/C6TC01163B"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsami.7b01017"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2018.08.114"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.compositesa.2019.105753"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.4963140"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.3390\/ma9100825"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1088\/2053-1583\/3\/1\/015010"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1021\/nl303611v"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.mser.2013.09.001"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1021\/ph400147y"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1038\/nphoton.2012.262"},{"key":"e_1_2_7_26_1","unstructured":"D. D.Mircea Dragoman A.Cismaru A.Stefanescu A.Dinescu 2013 European Microwave. Conf.IEEE Nuremberg Germany 2013 pp.530."},{"key":"e_1_2_7_27_1","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.87.075447"},{"key":"e_1_2_7_28_1","unstructured":"E.Tatarova J.Henriques L.Alves B.Gon\u00e7alves US 1254575B2 2022."},{"key":"e_1_2_7_29_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-017-10810-3"},{"key":"e_1_2_7_30_1","doi-asserted-by":"publisher","DOI":"10.1039\/C9CP05509F"},{"key":"e_1_2_7_31_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apmt.2024.102056"},{"key":"e_1_2_7_32_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-020-69844-9"},{"key":"e_1_2_7_33_1","volume-title":"High Resolution XPS of Organic Polymers: The Scienta ESCA300 Database","author":"Beamson G.","year":"1992"},{"key":"e_1_2_7_34_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cattod.2010.07.004"},{"key":"e_1_2_7_35_1","doi-asserted-by":"publisher","DOI":"10.1039\/C4CP01106F"},{"key":"e_1_2_7_36_1","doi-asserted-by":"publisher","DOI":"10.1109\/TMAG.2006.878652"},{"key":"e_1_2_7_37_1","volume-title":"Electromagnetic Materials and Devices","author":"Radonic V.","year":"2018"},{"key":"e_1_2_7_38_1","unstructured":"Ansys HFSS | 3D High Frequency Simulation Software https:\/\/www.ansys.com\/products\/electronics\/ansys\u2010hfss(accessed: November 2022)."},{"key":"e_1_2_7_39_1","unstructured":"P. K.Sharma N.Gupta P. I.Dankov Proc. of CONECCT 2020 \u20136th IEEE Int. Conf. on Electronics Computing and Communication Technologies IEEE Nuremberg Germany2020."},{"key":"e_1_2_7_40_1","doi-asserted-by":"publisher","DOI":"10.1021\/la025868c"}],"container-title":["Small"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/smll.202303421","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/smll.202303421","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/smll.202303421","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T08:43:34Z","timestamp":1772959414000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/smll.202303421"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,3,27]]},"references-count":40,"journal-issue":{"issue":"27","published-print":{"date-parts":[[2024,7]]}},"alternative-id":["10.1002\/smll.202303421"],"URL":"https:\/\/doi.org\/10.1002\/smll.202303421","archive":["Portico"],"relation":{},"ISSN":["1613-6810","1613-6829"],"issn-type":[{"value":"1613-6810","type":"print"},{"value":"1613-6829","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,3,27]]},"assertion":[{"value":"2023-04-23","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-03-27","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"2303421"}}