Abstract
Electrografting of an oligophenylene ethynylene monolayer (OPEH) onto a Mylar (R)-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 similar to 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.Towards transparent and flexible large area molecular electronic devices.
Original language | English |
---|---|
Pages (from-to) | 1325-1333 |
Number of pages | 9 |
Journal | Journal of Materials Chemistry C |
Volume | 12 |
Issue number | 4 |
Early online date | 7 Dec 2023 |
DOIs | |
Publication status | Published - 25 Jan 2024 |