{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/129670"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/129670","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Cubic III-Nitrides for photonics: Physics, materials, and devices","abstract":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01","abstract_html":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01","abstract_has_math":false,"creators":["Lee, Jaekwon"],"institution":"University of Illinois Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Bayram, Can","Dallesasse, John Michael","Goddard, Lynford L","Kim, Kyekyoon","Leburton, Jean-Pierre","Ploessl, Andreas Eberhard","Solgaard, Olav"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2025,"date_issued":"2025-03-18","date_published":"2025-03-18","updated_at":"2026-07-22T22:25:05Z","subjects":["Cubic Nitride","Light-emitting diodes","green gap"],"languages":["en","eng"],"rights":["Copyright 2025 Jaekwon Lee"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/129670","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Bayram, Can","Dallesasse, John Michael","Goddard, Lynford L","Kim, Kyekyoon","Leburton, Jean-Pierre","Ploessl, Andreas Eberhard","Solgaard, Olav"]},{"key":"dc:creator","label":"Author","values":["Lee, Jaekwon"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2025-03-18","2025-05"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical & Computer Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Cubic Nitride","Light-emitting diodes","green gap"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2025 Jaekwon Lee"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/129670"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01","The student, Jaekwon Lee, accepted the attached license on 2025-03-14 at 13:40.","The student, Jaekwon Lee, submitted this Dissertation for approval on 2025-03-14 at 14:08.","This Dissertation was approved for publication on 2025-03-18 at 14:57.","DSpace SAF Submission Ingestion Package generated from Vireo submission #21678 on 2025-10-19 at 19:52:30","Light-emitting diodes (LEDs), especially InGaN-based LED devices, have achieved remarkable success in solid-state lighting, contributing to 25 % of energy savings already. However, expected population growth and increasing demand for lighting necessitate a more efficient approach, which can only be realized by solving the issue of the green gap (i.e., the inefficiency of the state-of-the-art green LEDs). Cubic nitride LEDs are proposed as a promising solution to the green gap, due to well-documented advantages in the literature. However, there are theoretical and experimental issues in the current approach that need to be innovated in order to translate these material advantages into functional devices and address the green gap with the cubic nitride approach. In this thesis, the realization of cubic nitride LEDs will be tackled in both theoretical and experimental aspects. First, three crucial design rules specific to cubic nitride LEDs are suggested, enabling highly efficient theoretical stack design. Second, high-quality, phase-pure cubic GaN is demonstrated and characterized as a template for further material growth. Next, purely cubic active layers are synthesized and characterized, showing high enough internal quantum efficiency with green emission to make a functional device. Finally, the LED and micro-LED fabrication based on cubic GaN template are shown, and the characterization of these novel devices is discussed."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Cubic III-Nitrides for photonics: Physics, materials, and devices"]}]}],"canonical_facts":{"dc:contributor":["Bayram, Can","Dallesasse, John Michael","Goddard, Lynford L","Kim, Kyekyoon","Leburton, Jean-Pierre","Ploessl, Andreas Eberhard","Solgaard, Olav"],"dc:creator":["Lee, Jaekwon"],"dc:date":["2025-03-18","2025-05"],"dc:description":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01","The student, Jaekwon Lee, accepted the attached license on 2025-03-14 at 13:40.","The student, Jaekwon Lee, submitted this Dissertation for approval on 2025-03-14 at 14:08.","This Dissertation was approved for publication on 2025-03-18 at 14:57.","DSpace SAF Submission Ingestion Package generated from Vireo submission #21678 on 2025-10-19 at 19:52:30","Light-emitting diodes (LEDs), especially InGaN-based LED devices, have achieved remarkable success in solid-state lighting, contributing to 25 % of energy savings already. However, expected population growth and increasing demand for lighting necessitate a more efficient approach, which can only be realized by solving the issue of the green gap (i.e., the inefficiency of the state-of-the-art green LEDs). Cubic nitride LEDs are proposed as a promising solution to the green gap, due to well-documented advantages in the literature. However, there are theoretical and experimental issues in the current approach that need to be innovated in order to translate these material advantages into functional devices and address the green gap with the cubic nitride approach. In this thesis, the realization of cubic nitride LEDs will be tackled in both theoretical and experimental aspects. First, three crucial design rules specific to cubic nitride LEDs are suggested, enabling highly efficient theoretical stack design. Second, high-quality, phase-pure cubic GaN is demonstrated and characterized as a template for further material growth. Next, purely cubic active layers are synthesized and characterized, showing high enough internal quantum efficiency with green emission to make a functional device. Finally, the LED and micro-LED fabrication based on cubic GaN template are shown, and the characterization of these novel devices is discussed."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/129670"],"dc:language":["en","eng"],"dc:rights":["Copyright 2025 Jaekwon Lee"],"dc:subject":["Cubic Nitride","Light-emitting diodes","green gap"],"dc:title":["Cubic III-Nitrides for photonics: Physics, materials, and devices"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Electrical & Computer Engr"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:05Z"}