{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T16:14:13Z","timestamp":1785428053975,"version":"3.56.0"},"reference-count":27,"publisher":"Optica Publishing Group","issue":"12","license":[{"start":{"date-parts":[[2025,6,2]],"date-time":"2025-06-02T00:00:00Z","timestamp":1748822400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2025,6,2]],"date-time":"2025-06-02T00:00:00Z","timestamp":1748822400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"name":"Wuhan Joint Innovation Laboratory of Advanced Display Industry","award":["2024010902040449"],"award-info":[{"award-number":["2024010902040449"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52475601"],"award-info":[{"award-number":["52475601"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52075394"],"award-info":[{"award-number":["52075394"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Science and Technology Major Project of Hubei Province","award":["2024BAA004"],"award-info":[{"award-number":["2024BAA004"]}]},{"name":"Key Research and Development Program of Hubei Province","award":["2023BAB137"],"award-info":[{"award-number":["2023BAB137"]}]},{"name":"Science and Technology Major Project of Wuhan","award":["2024010702020024"],"award-info":[{"award-number":["2024010702020024"]}]},{"name":"Knowledge Innovation Program of Wuhan Basic Research"},{"name":"National Youth Talent Support Program"},{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2025,6,15]]},"abstract":"<jats:p>AlGaN-based light-emitting diodes (LEDs) operating in the deep-ultraviolet (DUV) spectral range have exhibited a promising future on physical sterilization. However, poor light extraction efficiency (LEE) and low Mg doping efficiency hinder the further pursuit of high-performance AlGaN-based DUV LEDs. Herein, we developed an improvement strategy for a highly efficient 278-nm AlGaN-based DUV LED via performing \u03b4-doping modulation in a thin p-GaN contact layer. The \u03b4-doping modulation can optimize the thin p-GaN ohmic contact layer via improving the Mg doping efficiency, thereby increasing the electrical and optical performances of the DUV LEDs. Consequently, with the assistance of the proposed \u03b4-doping modulation, the peak light output power (LOP) of the DUV LED is improved by 34.1% in comparison to its referred counterpart with conventional-doped thin p-GaN, respectively. Our work is able to supply a new horizon in the development of the highly efficient AlGaN-based DUV emitters.<\/jats:p>","DOI":"10.1364\/ol.561731","type":"journal-article","created":{"date-parts":[[2025,5,15]],"date-time":"2025-05-15T08:00:36Z","timestamp":1747296036000},"page":"3816","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["High-efficiency deep ultraviolet light-emitting diodes via \u03b4-doping modulation of a thin p-GaN contact layer"],"prefix":"10.1364","volume":"50","author":[{"given":"Xu","family":"Liu","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/033vjfk17","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bin","family":"Tang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/033vjfk17","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingjing","family":"Jiang","sequence":"additional","affiliation":[{"name":"Wuhan JingWei Technology Co., Ltd."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhefu","family":"Liao","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/033vjfk17","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiahao","family":"Song","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/033vjfk17","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhenxing","family":"Lv","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/033vjfk17","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ziqi","family":"Zhang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/033vjfk17","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shengli","family":"Qi","sequence":"additional","affiliation":[{"name":"Ningbo ANN Semiconductor Co., Ltd."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9004-049X","authenticated-orcid":true,"given":"Shengjun","family":"Zhou","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/033vjfk17","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Wuhan JingWei Technology Co., Ltd."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2025,6,2]]},"reference":[{"key":"ol-50-12-3816-R1","doi-asserted-by":"publisher","first-page":"233","DOI":"10.1038\/s41566-019-0359-9","volume":"13","author":"Kneissl","year":"2019","journal-title":"Nat. Photonics"},{"key":"ol-50-12-3816-R2","doi-asserted-by":"publisher","first-page":"013105","DOI":"10.1063\/1.4973493","volume":"121","author":"Yun","year":"2017","journal-title":"J. Appl. Phys."},{"key":"ol-50-12-3816-R3","doi-asserted-by":"publisher","first-page":"10284","DOI":"10.1364\/OE.520767","volume":"32","author":"Xing","year":"2024","journal-title":"Opt. Express"},{"key":"ol-50-12-3816-R4","doi-asserted-by":"publisher","first-page":"2300464","DOI":"10.1002\/lpor.202300464","volume":"18","author":"Zhou","year":"2024","journal-title":"Laser Photonics Rev."},{"key":"ol-50-12-3816-R5","doi-asserted-by":"publisher","first-page":"4887","DOI":"10.1039\/D1NR08221C","volume":"14","author":"Zhou","year":"2022","journal-title":"Nanoscale"},{"key":"ol-50-12-3816-R6","doi-asserted-by":"publisher","first-page":"252107","DOI":"10.1063\/5.0242223","volume":"125","author":"Ji","year":"2024","journal-title":"Appl. Phys. Lett."},{"key":"ol-50-12-3816-R7","doi-asserted-by":"publisher","first-page":"012107","DOI":"10.1063\/5.0216179","volume":"125","author":"Lang","year":"2024","journal-title":"Appl. Phys. Lett."},{"key":"ol-50-12-3816-R8","doi-asserted-by":"publisher","first-page":"112026","DOI":"10.1016\/j.optlastec.2024.112026","volume":"181","author":"Chen","year":"2025","journal-title":"Opt. Laser Technol."},{"key":"ol-50-12-3816-R9","doi-asserted-by":"publisher","first-page":"107939","DOI":"10.1016\/j.mssp.2023.107939","volume":"170","author":"Cao","year":"2024","journal-title":"Mater. Sci. Semicond. Process."},{"key":"ol-50-12-3816-R10","doi-asserted-by":"publisher","first-page":"36547","DOI":"10.1364\/OE.503964","volume":"31","author":"Li","year":"2023","journal-title":"Opt. Express"},{"key":"ol-50-12-3816-R11","doi-asserted-by":"publisher","first-page":"44933","DOI":"10.1364\/OE.476103","volume":"30","author":"Pan","year":"2022","journal-title":"Opt. Express"},{"key":"ol-50-12-3816-R12","doi-asserted-by":"publisher","first-page":"2438","DOI":"10.1109\/ted.2025.3556098","volume":"72","author":"Cheng","year":"2025","journal-title":"IEEE Trans. Electron Devices"},{"key":"ol-50-12-3816-R13","doi-asserted-by":"publisher","first-page":"A669","DOI":"10.1364\/OE.27.00A669","volume":"27","author":"Zhou","year":"2019","journal-title":"Opt. Express"},{"key":"ol-50-12-3816-R14","doi-asserted-by":"publisher","first-page":"110","DOI":"10.1038\/s41378-024-00737-x","volume":"10","author":"Liu","year":"2024","journal-title":"Microsyst. Nanoeng."},{"key":"ol-50-12-3816-R15","doi-asserted-by":"publisher","first-page":"4491","DOI":"10.1063\/1.371392","volume":"86","author":"Ho","year":"1999","journal-title":"J. Appl. Phys."},{"key":"ol-50-12-3816-R16","doi-asserted-by":"publisher","first-page":"G17","DOI":"10.1149\/1.1830391","volume":"8","author":"Park","year":"2005","journal-title":"Electrochem. Solid-State Lett."},{"key":"ol-50-12-3816-R17","doi-asserted-by":"publisher","first-page":"71","DOI":"10.1038\/s41377-022-00753-4","volume":"11","author":"Wang","year":"2022","journal-title":"Light: Sci. Appl."},{"key":"ol-50-12-3816-R18","doi-asserted-by":"publisher","first-page":"1700643","DOI":"10.1002\/pssa.201700643","volume":"215","author":"Susilo","year":"2018","journal-title":"Phys. Status Solidi A"},{"key":"ol-50-12-3816-R19","doi-asserted-by":"publisher","first-page":"162102","DOI":"10.1063\/1.4919005","volume":"106","author":"Chen","year":"2015","journal-title":"Appl. Phys. Lett."},{"key":"ol-50-12-3816-R20","doi-asserted-by":"publisher","first-page":"1782","DOI":"10.1364\/OE.445600","volume":"30","author":"Jia","year":"2022","journal-title":"Opt. Express"},{"key":"ol-50-12-3816-R21","doi-asserted-by":"publisher","first-page":"165207","DOI":"10.1103\/PhysRevB.93.165207","volume":"93","author":"Miceli","year":"2016","journal-title":"Phys. Rev. B"},{"key":"ol-50-12-3816-R22","doi-asserted-by":"publisher","first-page":"106632","DOI":"10.1016\/j.spmi.2020.106632","volume":"145","author":"Fan","year":"2020","journal-title":"Superlattices Microstruct."},{"key":"ol-50-12-3816-R23","doi-asserted-by":"publisher","first-page":"156177","DOI":"10.1016\/j.jallcom.2020.156177","volume":"845","author":"Ma","year":"2020","journal-title":"J. Alloys Compd."},{"key":"ol-50-12-3816-R24","doi-asserted-by":"publisher","first-page":"693","DOI":"10.1103\/PhysRevLett.72.693","volume":"72","author":"Zhang","year":"1994","journal-title":"Phys. Rev. Lett."},{"key":"ol-50-12-3816-R25","doi-asserted-by":"publisher","first-page":"431","DOI":"10.1063\/1.1580195","volume":"94","author":"Hashizume","year":"2003","journal-title":"J. Appl. Phys."},{"key":"ol-50-12-3816-R26","doi-asserted-by":"publisher","first-page":"207","DOI":"10.1016\/j.ultramic.2010.11.028","volume":"111","author":"Bennett","year":"2011","journal-title":"Ultramicroscopy"},{"key":"ol-50-12-3816-R27","doi-asserted-by":"publisher","first-page":"115624","DOI":"10.1016\/j.ssc.2024.115624","volume":"390","author":"Huang","year":"2024","journal-title":"Solid State Commun."}],"container-title":["Optics Letters"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/opg.optica.org\/viewmedia.cfm?URI=ol-50-12-3816&seq=0","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,2]],"date-time":"2025-06-02T10:54:33Z","timestamp":1748861673000},"score":1,"resource":{"primary":{"URL":"https:\/\/opg.optica.org\/abstract.cfm?URI=ol-50-12-3816"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,6,2]]},"references-count":27,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2025]]},"published-print":{"date-parts":[[2025]]}},"URL":"https:\/\/doi.org\/10.1364\/ol.561731","relation":{},"ISSN":["0146-9592","1539-4794"],"issn-type":[{"value":"0146-9592","type":"print"},{"value":"1539-4794","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,6,2]]},"assertion":[{"value":"Optica Publishing Group","name":"publisher","label":"This article is maintained by"},{"value":"https:\/\/doi.org\/10.1364\/OL.561731","name":"articlelink","label":"Crossref DOI link to publisher maintained version"},{"value":"letter","name":"content_type","label":"Article type"},{"value":"Screened by Similarity Check","name":"cross_check","label":"Similarity check"},{"value":"Yes","order":0,"name":"peer_reviewed","label":"Peer reviewed","group":{"name":"peer_review","label":"Peer review"}},{"value":"Single blind","order":1,"name":"review_process","label":"Review process","group":{"name":"peer_review","label":"Peer review"}},{"value":"17 March 2025","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"12 May 2025","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2 June 2025","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}},{"value":"\u00a9 2025 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}