Laponite-Modified Biopolymers as a Conformable Substrate for Optoelectronic Devices

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorPontifícia Univ. Católica do Rio de Janeiro (PUC-Rio)-
Autor(es): dc.contributorUniversity of Ribeirão Preto (UNAERP)-
Autor(es): dc.contributorUniv. Federal de Juiz de Fora (UFJF)-
Autor(es): dc.contributorUniv. de Araraquara (UNIARA)-
Autor(es): dc.creatorOnishi, Bruno S. D.-
Autor(es): dc.creatorCarvalho, Rafael S.-
Autor(es): dc.creatorBortoletto-Santos, Ricardo-
Autor(es): dc.creatorSantagneli, Silvia H.-
Autor(es): dc.creatorBarreto, Arthur R. J.-
Autor(es): dc.creatorSantos, Aline M.-
Autor(es): dc.creatorCremona, Marco-
Autor(es): dc.creatorPandoli, Omar G.-
Autor(es): dc.creatorJunior, Mario N. B.-
Autor(es): dc.creatorFaraco, Thales A.-
Autor(es): dc.creatorBarud, Hernane S.-
Autor(es): dc.creatorde Farias, Renan L.-
Autor(es): dc.creatorRibeiro, Sidney J. L.-
Autor(es): dc.creatorLegnani, Cristiano-
Data de aceite: dc.date.accessioned2025-08-21T22:27:53Z-
Data de disponibilização: dc.date.available2025-08-21T22:27:53Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-07-23-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1021/acsomega.4c03463-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/301039-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/301039-
Descrição: dc.descriptionBiopolymers such as carboxymethyl cellulose and hyaluronic acid are alternative substrates for conformable organic light-emitting diodes (OLEDs). However, drawbacks such as mechanical stress susceptibility can hinder the device’s performance under stretched conditions. To overcome these limitations, herein, we developed a nanocomposite based on CMC/HA (carboxymethyl cellulose/hyaluronic acid) and synthetic Laponite, intending to improve the mechanical strength without compromising the film flexibility and transparency (transmittance >80%; 380-700 nm) as substrates for conformable OLEDs. From XRD, FTIR, CP-MAS NMR, and TGA/DTG characterization techniques, it was possible to conclude the presence of Laponite randomly dispersed between the polymer chains. CMC/HA with 5% (w/w) Laponite, CMC/HA 5, presented a higher tensile strength (370.6 MPa) and comparable Young’s modulus (51.0 ± 1.2 MPa) in comparison to the nanocomposites and pristine films, indicating a better candidate for the device’s substrates. To produce the OLED, the multilayer structure ITO/MoO3/NPB/TCTA:Ir(ppy)3/TPBi:Ir(ppy)3/BPhen/LiF was deposited onto the CMC/HA 5 substrate. The OLEDs fabricated using CMC/HA 5 substrates showed higher luminance (12 kcd/m2) and irradiance (0.9 mW/cm2) values when compared with those based on commercial bacterial cellulose. However, the same device presented a lower efficiency (3.2 cd/A) due to a higher current density. Moreover, the OLED fabricated onto the Laponite-modified biopolymer presented reproducible behavior when submitted to continuous bending stress. Thus, CMC/HA 5 demonstrates potential as a transparent conductor substrate for biopolymer-based OLEDs with comparable performance to commercial bacterial cellulose features.-
Descrição: dc.descriptionInstitute of Chemistry São Paulo State University (UNESP), SP-
Descrição: dc.descriptionDepartamento de Física Pontifícia Univ. Católica do Rio de Janeiro (PUC-Rio)-
Descrição: dc.descriptionPostgraduate Program in Environmental Technology University of Ribeirão Preto (UNAERP)-
Descrição: dc.descriptionDepartamento de Química Pontifícia Univ. Católica do Rio de Janeiro (PUC-Rio)-
Descrição: dc.descriptionDepartamento de Engenharia Química e de Materiais Pontifícia Univ. Católica do Rio de Janeiro (PUC-Rio)-
Descrição: dc.descriptionDepartamento de Física Laboratório de Eletrônica Orgânica (LEO) Univ. Federal de Juiz de Fora (UFJF)-
Descrição: dc.descriptionLaboratório de biopolímeros e Biomateriais (BIOPOLMAt) Univ. de Araraquara (UNIARA)-
Descrição: dc.descriptionInstitute of Chemistry São Paulo State University (UNESP), SP-
Formato: dc.format31855-31863-
Idioma: dc.languageen-
Relação: dc.relationACS Omega-
???dc.source???: dc.sourceScopus-
Título: dc.titleLaponite-Modified Biopolymers as a Conformable Substrate for Optoelectronic Devices-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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