Robust large area molecular junctions based on transparent and flexible electrodes

García-Serrano, Aitor ; Cea, Pilar (Universidad de Zaragoza) ; Osorio, Henrry M. ; Pérez-Murano, Francesc ; Rius, Gemma ; Low, Paul J. ; Martin, Santiago (Universidad de Zaragoza)

Resumen: Electrografting of an oligophenylene ethynylene monolayer (OPEH) onto a Mylar®-supported PEDOT : PSS and graphene substrate prior to wet-transfer of a graphene top-electrode has been used to create flexible and transparent large-area Mylar–PEDOT : PSS|OPEH|Graphene molecular junctions. The electrical conductance of the Mylar–PEDOT : PSS|OPEH|Graphene structure was determined by conductive probe atomic force microscopy (c-AFM), sampling various regions across the surfaces of multiple devices. All registered I–V curves (sampling size ∼150 tests) give a sigmoidal response, consistent with through molecule conductance and ruling out the presence of direct electrode contacts or short-circuits. The demonstration of the combined use of Mylar-supported PEDOT : PSS and graphene as alternative electrode materials to conventional metal thin film electrodes in large-area molecular junctions opens avenues to enable flexible and transparent molecular (opto)electronic devices.

Idioma: Inglés

DOI: 10.1039/d3tc02237d

Año: 2023

Publicado en: JOURNAL OF MATERIALS CHEMISTRY C 12, 4 (2023), 1325-1333
ISSN: 2050-7526

Factor impacto JCR: 5.7 (2023)

Categ. JCR: PHYSICS, APPLIED rank: 35 / 179 = 0.196 (2023) - Q1 - T1
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 111 / 438 = 0.253 (2023) - Q2 - T1

Factor impacto CITESCORE: 10.8 - Materials Chemistry (Q1) - Chemistry (all) (Q1)

Factor impacto SCIMAGO: 1.358 - Materials Chemistry (Q1) - Chemistry (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/AEI/AEI PID2022-14143300B-I00
Financiación: info:eu-repo/grantAgreement/ES/AEI/RYC-2016-21412
Financiación: info:eu-repo/grantAgreement/ES/DGA/E31-23R
Financiación: info:eu-repo/grantAgreement/ES/MCIU/PID2019-105881RB-I00
Financiación: info:eu-repo/grantAgreement/ES/MCIN/AEI/10.13039/501100011033
Financiación: info:eu-repo/grantAgreement/EUR/MICINN/TED2021-131318B-I00

Tipo y forma: Artículo (PostPrint)

Área (Departamento): Área Química Física (Dpto. Química Física)