{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Wang B"],"funding":["DOE | Office of Energy Efficiency & Renewable Energy | Building Technologies Office (BTO)","DOE | Office of Energy Efficiency & Renewable Energy | Building Technologies Office"],"pagination":["703"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12820031"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["17(1)"],"pubmed_abstract":["Reliability is particularly challenging for organic light-emitting diodes (OLEDs) used in solid-state lighting applications, because OLED lifetime is inversely proportional to luminance, and most lighting applications demand high luminance. Here we introduce a strategy to overcome this tradeoff by constructing OLEDs on a substrate with sub-mm, high aspect ratio surface texture. By creating more active OLED area per unit lighting panel area, the device current density required to generate a given panel luminance decreases. We validate this approach for fluorescent and phosphorescent OLEDs, demonstrating good thickness uniformity on corrugated substrates with area enhancement factors up to 1.4x using a standard thermal evaporator. Relative to planar controls at the same panel current density, the high aspect ratio devices achieve a 2.7-fold increase in operating lifetime and up to a 40% increase in external light extraction efficiency, indicating that this approach offers a powerful pathway to improve the efficiency and lifetime of OLED lighting."],"journal":["Nature communications"],"pubmed_title":["High aspect ratio organic light-emitting diodes."],"pmcid":["PMC12820031"],"funding_grant_id":["DE-EE0009694"],"pubmed_authors":["Kim T","Comfort D","Huang C","Mashack R","Shtein M","Wang B","Kotadiya NB","Kondakova M","Arneson CE","Giebink NC"],"additional_accession":[]},"is_claimable":false,"name":"High aspect ratio organic light-emitting diodes.","description":"Reliability is particularly challenging for organic light-emitting diodes (OLEDs) used in solid-state lighting applications, because OLED lifetime is inversely proportional to luminance, and most lighting applications demand high luminance. Here we introduce a strategy to overcome this tradeoff by constructing OLEDs on a substrate with sub-mm, high aspect ratio surface texture. By creating more active OLED area per unit lighting panel area, the device current density required to generate a given panel luminance decreases. We validate this approach for fluorescent and phosphorescent OLEDs, demonstrating good thickness uniformity on corrugated substrates with area enhancement factors up to 1.4x using a standard thermal evaporator. Relative to planar controls at the same panel current density, the high aspect ratio devices achieve a 2.7-fold increase in operating lifetime and up to a 40% increase in external light extraction efficiency, indicating that this approach offers a powerful pathway to improve the efficiency and lifetime of OLED lighting.","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Dec","modification":"2026-06-14T05:05:11.921Z","creation":"2026-06-14T03:08:50.284Z"},"accession":"S-EPMC12820031","cross_references":{"pubmed":["41390523"],"doi":["10.1038/s41467-025-67312-4"]}}