Improvement of light outcoupling efficiency of organic light-emitting diodes utilizing microlens array fabricated using poly oxymethylene mold
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Hyun Soo | - |
dc.contributor.author | Jeong, Ki Won | - |
dc.contributor.author | Yi, Geum Ran | - |
dc.contributor.author | Kim, Chang Kyo | - |
dc.date.accessioned | 2021-08-11T16:24:23Z | - |
dc.date.available | 2021-08-11T16:24:23Z | - |
dc.date.issued | 2017 | - |
dc.identifier.issn | 1542-1406 | - |
dc.identifier.issn | 1543-5318 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/8414 | - |
dc.description.abstract | This paper reports a new method for fabrication of microlens arrays using a polyoxymethylene (POM) mold with concave-type cylindrical holes prepared by mechanical-micro milling without photolithography and wet etching processes. Microlens arrays were fabricated by a replica molding process using the concave-type POM mold. A polymethylmethacrylate (PMMA) thin film was deposited onto the POM mold and a concave PMMA template was prepared by blowing a nitrogen gas stream onto the thin PMMA film suspended on the micro POM mold. Microlens arrays were fabricated by pouring ultraviolet (UV)-epoxy onto the concave PMMA template and curing the UV-epoxy under UV light. Two types of microlens arrays, one with a hemispherical structure and one with a truncated-cone-type structure, were fabricated. After attaching the hemispherical microlens array onto organic light-emitting diodes (OLEDs), the external quantum efficiency (EQE) of the OLEDs was enhanced by approximately 56.5%. This work provides a valuable method for easy fabrication of microlens arrays with diameters of several hundred micrometers. | - |
dc.format.extent | 9 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Taylor & Francis | - |
dc.title | Improvement of light outcoupling efficiency of organic light-emitting diodes utilizing microlens array fabricated using poly oxymethylene mold | - |
dc.type | Article | - |
dc.publisher.location | 영국 | - |
dc.identifier.doi | 10.1080/09273948.2017.1338886 | - |
dc.identifier.scopusid | 2-s2.0-85031431649 | - |
dc.identifier.wosid | 000415652100009 | - |
dc.identifier.bibliographicCitation | Molecular Crystals and Liquid Crystals, v.651, no.1, pp 55 - 63 | - |
dc.citation.title | Molecular Crystals and Liquid Crystals | - |
dc.citation.volume | 651 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 55 | - |
dc.citation.endPage | 63 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Crystallography | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Crystallography | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | BLUE PHOSPHORESCENT OLEDS | - |
dc.subject.keywordPlus | FULL-COLOR DISPLAYS | - |
dc.subject.keywordPlus | EXTRACTION-EFFICIENCY | - |
dc.subject.keywordPlus | REFRACTIVE-INDEX | - |
dc.subject.keywordPlus | DEVICES | - |
dc.subject.keywordPlus | PHOTORESIST | - |
dc.subject.keywordPlus | ORIENTATION | - |
dc.subject.keywordPlus | BRIGHTNESS | - |
dc.subject.keywordPlus | MONOLAYER | - |
dc.subject.keywordPlus | REFLOW | - |
dc.subject.keywordAuthor | Light outcoupling efficiency | - |
dc.subject.keywordAuthor | micro milling machine | - |
dc.subject.keywordAuthor | microlens array | - |
dc.subject.keywordAuthor | organic light-emitting diode | - |
dc.subject.keywordAuthor | POM mold | - |
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