Surface modified solution-derived lanthanum-doped zinc oxide film for nematic liquid crystal system with free residual DC voltage
DC Field | Value | Language |
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dc.contributor.author | Lee, Ju Hwan | - |
dc.contributor.author | Kim, Eun-Mi | - |
dc.contributor.author | Heo, Gi-Seok | - |
dc.contributor.author | Jeong, Hae-Chang | - |
dc.contributor.author | Kim, Dong Hyun | - |
dc.contributor.author | Lee, Dong Wook | - |
dc.contributor.author | Han, Jeong-Min | - |
dc.contributor.author | Kim, Tae Wan | - |
dc.contributor.author | Seo, Dae-Shik | - |
dc.date.available | 2020-07-10T04:22:31Z | - |
dc.date.created | 2020-07-06 | - |
dc.date.issued | 2018-07-01 | - |
dc.identifier.issn | 0254-0584 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/3464 | - |
dc.description.abstract | The liquid crystal (LC) alignment characteristics of the solution-derived lanthanum-doped zinc oxide (La:ZnO) film with ion-beam (IB) irradiation were investigated as a function of curing temperature. The best LC alignment state with uniform and homogeneous alignment was achieved at a curing temperature of 300 degrees C. To observe the effect of the IB irradiation on the La:ZnO film, physical and chemical surface analyses were conducted. Atomic-force microscopy revealed that surface roughness was increased, and the leptokurtic surface was changed to a platykurtic surface after the IB irradiation. X-ray photoelectron spectroscopy showed the breakage of the metal-oxide bonds, which induced an increase of oxygen vacancies. This caused van der Waals force, which strongly anchored LC molecules to the La:ZnO film. These results indicated that uniform and homogeneous LC alignment with the solution-derived La:ZnO films was induced by physical and chemical surface modification due to the IB irradiation. Moreover, residual DC was characterized by a capacitance-voltage hysteresis curve and nearly zero hysteresis was achieved. Therefore, IB irradiation is a useful method to achieve uniform and homogenous LC alignment, and using it with the solution-derived La:ZnO film exhibited potential for high-quality LC applications. (C) 2018 Elsevier B.V. All rights reserved. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | ALIGNMENT | - |
dc.subject | LAYERS | - |
dc.title | Surface modified solution-derived lanthanum-doped zinc oxide film for nematic liquid crystal system with free residual DC voltage | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Tae Wan | - |
dc.identifier.doi | 10.1016/j.matchemphys.2018.04.023 | - |
dc.identifier.scopusid | 2-s2.0-85047415613 | - |
dc.identifier.wosid | 000433648600047 | - |
dc.identifier.bibliographicCitation | MATERIALS CHEMISTRY AND PHYSICS, v.213, pp.383 - 388 | - |
dc.relation.isPartOf | MATERIALS CHEMISTRY AND PHYSICS | - |
dc.citation.title | MATERIALS CHEMISTRY AND PHYSICS | - |
dc.citation.volume | 213 | - |
dc.citation.startPage | 383 | - |
dc.citation.endPage | 388 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | ALIGNMENT | - |
dc.subject.keywordPlus | LAYERS | - |
dc.subject.keywordAuthor | Ion-beam irradiation | - |
dc.subject.keywordAuthor | Solution processing | - |
dc.subject.keywordAuthor | Lanthanum-doped zinc oxide | - |
dc.subject.keywordAuthor | Surface modification | - |
dc.subject.keywordAuthor | Capacitance-voltage hysteresis | - |
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