Ecological Biosubstrates Obtained from Onion Pulp (Allium cepa L.) for Flexible Organic Light-Emitting Diodes
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1021/acsami.9b14029 http://hdl.handle.net/11449/201081 |
Resumo: | A new biopolymer obtained from onion pulp (Allium cepa L.) was employed to produce a sustainable substrate for flexible organic light-emitting diodes (FOLEDs). Indium tin oxide (ITO) and SiO2 thin films were deposited by rf-magnetron sputtering onto these biosubstrates to obtain flexible, transparent, and conductive anodes, on top of which FOLEDs were produced. This new biomaterial exhibits an optical transparency of 63% at 550 nm. ITO films were optimized by varying rf power during deposition onto the biopolymers, and their electrical properties are comparable to the those of ITO grown on top of rigid substrates: a carrier concentration of -3.63 × 1021 cm-3 and carrier mobility of 7.72 cm2 V-1 s-1 for the optimized film. Consequently, the sheet resistance and resistivity of this ITO film were 8.92 ω sq-1 and 2.23 × 10-4 ω cm, respectively, hence allowing the production of FOLEDs. The A. cepa L. based FOLED was fabricated using CuPc, β-NPB, and Alq3 as organic layers, and it exhibited a maximum luminance of about 2062 cd m-2 at 16.6 V. The current efficiency reached a maximum value of 2.1 cd A-1 at 85.3 mA cm-2. The obtained results suggest the possibility to use these substrates for innovative biocompatible applications in optoelectronics, such as photodynamic therapy. |
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Ecological Biosubstrates Obtained from Onion Pulp (Allium cepa L.) for Flexible Organic Light-Emitting DiodesAllium cepa L.biopolymerbiosubstrateflexible organic light-emitting diodeFOLEDA new biopolymer obtained from onion pulp (Allium cepa L.) was employed to produce a sustainable substrate for flexible organic light-emitting diodes (FOLEDs). Indium tin oxide (ITO) and SiO2 thin films were deposited by rf-magnetron sputtering onto these biosubstrates to obtain flexible, transparent, and conductive anodes, on top of which FOLEDs were produced. This new biomaterial exhibits an optical transparency of 63% at 550 nm. ITO films were optimized by varying rf power during deposition onto the biopolymers, and their electrical properties are comparable to the those of ITO grown on top of rigid substrates: a carrier concentration of -3.63 × 1021 cm-3 and carrier mobility of 7.72 cm2 V-1 s-1 for the optimized film. Consequently, the sheet resistance and resistivity of this ITO film were 8.92 ω sq-1 and 2.23 × 10-4 ω cm, respectively, hence allowing the production of FOLEDs. The A. cepa L. based FOLED was fabricated using CuPc, β-NPB, and Alq3 as organic layers, and it exhibited a maximum luminance of about 2062 cd m-2 at 16.6 V. The current efficiency reached a maximum value of 2.1 cd A-1 at 85.3 mA cm-2. The obtained results suggest the possibility to use these substrates for innovative biocompatible applications in optoelectronics, such as photodynamic therapy.Grupo de Nanociência e Nanotecnologia (NANO) Departamento de Física Universidade Federal de Juiz de Fora (UFJF)Laboratório de Biopolímeros e Biomateriais (BIOPOLMAT) Departamento de Química Universidade de Araraquara (UNIARA)Instituto de Física de São Carlos Universidade de São Paulo (USP)Instituto de Química Universidade Estatual Paulista Júlio de Mesquita Filho (UNESP)BioSmart NanotechnologyLaboratório de Optoeletrônica Molecular (LOEM) Departamento de Física Pontifícia Universidade Católica Do Rio de Janeiro (PUC-Rio)Departamento de Química Pontifícia Universidade Católica Do Rio de Janeiro (PUC-Rio)Instituto de Química Universidade Estatual Paulista Júlio de Mesquita Filho (UNESP)Universidade Federal de Juiz de Fora (UFJF)Universidade de Araraquara (UNIARA)Universidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)BioSmart NanotechnologyPontifícia Universidade Católica Do Rio de Janeiro (PUC-Rio)Faraco, Thales A.De O. X. Silva, HáliceDa S. Barud, HernaneMaciel, Indhira O.Da Silva, Robson R.Quirino, Welber G.Fragneaud, BenjaminRibeiro, Clóvis A. [UNESP]Dos S. Dias, DiógenesG. Pandoli, OmarCremona, MarcoLegnani, Cristiano2020-12-12T02:23:37Z2020-12-12T02:23:37Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1021/acsami.9b14029ACS Applied Materials and Interfaces.1944-82521944-8244http://hdl.handle.net/11449/20108110.1021/acsami.9b140292-s2.0-8507476089584983108918100820000-0002-7984-5908Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengACS Applied Materials and Interfacesinfo:eu-repo/semantics/openAccess2022-03-03T12:19:01Zoai:repositorio.unesp.br:11449/201081Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-05-23T11:32:59.213100Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Ecological Biosubstrates Obtained from Onion Pulp (Allium cepa L.) for Flexible Organic Light-Emitting Diodes |
title |
Ecological Biosubstrates Obtained from Onion Pulp (Allium cepa L.) for Flexible Organic Light-Emitting Diodes |
spellingShingle |
Ecological Biosubstrates Obtained from Onion Pulp (Allium cepa L.) for Flexible Organic Light-Emitting Diodes Faraco, Thales A. Allium cepa L. biopolymer biosubstrate flexible organic light-emitting diode FOLED |
title_short |
Ecological Biosubstrates Obtained from Onion Pulp (Allium cepa L.) for Flexible Organic Light-Emitting Diodes |
title_full |
Ecological Biosubstrates Obtained from Onion Pulp (Allium cepa L.) for Flexible Organic Light-Emitting Diodes |
title_fullStr |
Ecological Biosubstrates Obtained from Onion Pulp (Allium cepa L.) for Flexible Organic Light-Emitting Diodes |
title_full_unstemmed |
Ecological Biosubstrates Obtained from Onion Pulp (Allium cepa L.) for Flexible Organic Light-Emitting Diodes |
title_sort |
Ecological Biosubstrates Obtained from Onion Pulp (Allium cepa L.) for Flexible Organic Light-Emitting Diodes |
author |
Faraco, Thales A. |
author_facet |
Faraco, Thales A. De O. X. Silva, Hálice Da S. Barud, Hernane Maciel, Indhira O. Da Silva, Robson R. Quirino, Welber G. Fragneaud, Benjamin Ribeiro, Clóvis A. [UNESP] Dos S. Dias, Diógenes G. Pandoli, Omar Cremona, Marco Legnani, Cristiano |
author_role |
author |
author2 |
De O. X. Silva, Hálice Da S. Barud, Hernane Maciel, Indhira O. Da Silva, Robson R. Quirino, Welber G. Fragneaud, Benjamin Ribeiro, Clóvis A. [UNESP] Dos S. Dias, Diógenes G. Pandoli, Omar Cremona, Marco Legnani, Cristiano |
author2_role |
author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Juiz de Fora (UFJF) Universidade de Araraquara (UNIARA) Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) BioSmart Nanotechnology Pontifícia Universidade Católica Do Rio de Janeiro (PUC-Rio) |
dc.contributor.author.fl_str_mv |
Faraco, Thales A. De O. X. Silva, Hálice Da S. Barud, Hernane Maciel, Indhira O. Da Silva, Robson R. Quirino, Welber G. Fragneaud, Benjamin Ribeiro, Clóvis A. [UNESP] Dos S. Dias, Diógenes G. Pandoli, Omar Cremona, Marco Legnani, Cristiano |
dc.subject.por.fl_str_mv |
Allium cepa L. biopolymer biosubstrate flexible organic light-emitting diode FOLED |
topic |
Allium cepa L. biopolymer biosubstrate flexible organic light-emitting diode FOLED |
description |
A new biopolymer obtained from onion pulp (Allium cepa L.) was employed to produce a sustainable substrate for flexible organic light-emitting diodes (FOLEDs). Indium tin oxide (ITO) and SiO2 thin films were deposited by rf-magnetron sputtering onto these biosubstrates to obtain flexible, transparent, and conductive anodes, on top of which FOLEDs were produced. This new biomaterial exhibits an optical transparency of 63% at 550 nm. ITO films were optimized by varying rf power during deposition onto the biopolymers, and their electrical properties are comparable to the those of ITO grown on top of rigid substrates: a carrier concentration of -3.63 × 1021 cm-3 and carrier mobility of 7.72 cm2 V-1 s-1 for the optimized film. Consequently, the sheet resistance and resistivity of this ITO film were 8.92 ω sq-1 and 2.23 × 10-4 ω cm, respectively, hence allowing the production of FOLEDs. The A. cepa L. based FOLED was fabricated using CuPc, β-NPB, and Alq3 as organic layers, and it exhibited a maximum luminance of about 2062 cd m-2 at 16.6 V. The current efficiency reached a maximum value of 2.1 cd A-1 at 85.3 mA cm-2. The obtained results suggest the possibility to use these substrates for innovative biocompatible applications in optoelectronics, such as photodynamic therapy. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 2020-12-12T02:23:37Z 2020-12-12T02:23:37Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1021/acsami.9b14029 ACS Applied Materials and Interfaces. 1944-8252 1944-8244 http://hdl.handle.net/11449/201081 10.1021/acsami.9b14029 2-s2.0-85074760895 8498310891810082 0000-0002-7984-5908 |
url |
http://dx.doi.org/10.1021/acsami.9b14029 http://hdl.handle.net/11449/201081 |
identifier_str_mv |
ACS Applied Materials and Interfaces. 1944-8252 1944-8244 10.1021/acsami.9b14029 2-s2.0-85074760895 8498310891810082 0000-0002-7984-5908 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
ACS Applied Materials and Interfaces |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803045842078138368 |