Hybrid molecular graphene transistor as an operando and optoelectronic platform

Jorge Trasobares (), Juan Carlos Martín-Romano, Muhammad Waqas Khaliq, Sandra Ruiz-Gómez, Michael Foerster, Miguel Ángel Niño, Patricia Pedraz, Yannick. J. Dappe, Marina Calero Ory, Julia García-Pérez, María Acebrón, Manuel Rodríguez Osorio, María Teresa Magaz, Alicia Gomez, Rodolfo Miranda and Daniel Granados ()
Additional contact information
Jorge Trasobares: IMDEA-Nanociencia, Cantoblanco
Juan Carlos Martín-Romano: IMDEA-Nanociencia, Cantoblanco
Muhammad Waqas Khaliq: ALBA Synchrotron, Carrer de la llum 2-26
Sandra Ruiz-Gómez: ALBA Synchrotron, Carrer de la llum 2-26
Michael Foerster: ALBA Synchrotron, Carrer de la llum 2-26
Miguel Ángel Niño: ALBA Synchrotron, Carrer de la llum 2-26
Patricia Pedraz: IMDEA-Nanociencia, Cantoblanco
Yannick. J. Dappe: Centro de Astrobiología (CSIC-INTA)
Marina Calero Ory: SPEC, CEA, CNRS Université Paris‐Saclay
Julia García-Pérez: IMDEA-Nanociencia, Cantoblanco
María Acebrón: IMDEA-Nanociencia, Cantoblanco
Manuel Rodríguez Osorio: IMDEA-Nanociencia, Cantoblanco
María Teresa Magaz: Centro de Astrobiología (CSIC-INTA)
Alicia Gomez: Centro de Astrobiología (CSIC-INTA)
Rodolfo Miranda: SPEC, CEA, CNRS Université Paris‐Saclay
Daniel Granados: IMDEA-Nanociencia, Cantoblanco

Nature Communications, 2023, vol. 14, issue 1, 1-10

Abstract: Abstract Lack of reproducibility hampers molecular devices integration into large-scale circuits. Thus, incorporating operando characterization can facilitate the understanding of multiple features producing disparities in different devices. In this work, we report the realization of hybrid molecular graphene field effect transistors (m-GFETs) based on 11-(Ferrocenyl)undecanethiol (FcC11SH) micro self-assembled monolayers (μSAMs) and high-quality graphene (Gr) in a back-gated configuration. On the one hand, Gr enables redox electron transfer, avoids molecular degradation and permits operando spectroscopy. On the other hand, molecular electrode decoration shifts the Gr Dirac point (VDP) to neutrality and generates a photocurrent in the Gr electron conduction regime. Benefitting from this heterogeneous response, the m-GFETs can implement optoelectronic AND/OR logic functions. Our approach represents a step forward in the field of molecular scale electronics with implications in sensing and computing based on sustainable chemicals.

Date: 2023
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DOI: 10.1038/s41467-023-36714-7

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