Proof of concept of a graphene-based reconfigurable frequency multiplier fabricated within the 2D Experimental Pilot Line
Year: 2026
Type: article
Abstract: Graphene intrinsic carrier ambipolarity enables unique circuit functionalities that would otherwise require significantly more complex circuit topologies to achieve with conventional semiconductors. Yet, translating these properties into practical, wafer-scale electronic systems remains a significant challenge. Here, we present an experimental proof of concept of a reconfigurable frequency multiplier based on a single split-gate graphene field-effect transistor. The devices used for this demonstration were externally fabricated through a multi-project wafer tape-out of the 2D Experimental Pilot Line, an initiative aimed at providing a scalable platform service for the manufacturing of 2D-material-based devices and circuits. The split-gate architecture synthesizes a W-shaped transfer characteristic within a single device enabling electrically reconfigurable frequency multiplication by factors of × 2, × 3, and × 4 without requiring multiple transistors or fixed fabrication-dependent tuning mechanisms. Time-domain measurements and spectral analysis confirm harmonic reconfiguration, yielding spectral purities of 48% for the doubler, 69% for the tripler, and 19% for the quadrupler at an input frequency of 100 kHz. This constitutes the first demonstration of a reconfigurable circuit using devices from the multi-project wafer 2D-EPL platform, representing a step forward in the integration complexity achievable with wafer-scale graphene technology.
Institution: Universidad de Granada
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,405
Awards: G1092424111, G1175115578, G1224172124, G1307865877, G1401168639, G1855990336, G2065685387, G2262748287, G2309174360, G252646220, G2550080368, G2576253259, G2601397997, G2660406951, G294895050, G300979063, G3480869486, G3518538256, G3681454997, G4042783231, G410571670, G425668148, G4301662792, G430777504, G451917667, G464105488, G4874151592, G5080475149, Graphene Flagship 2D Experimental Pilot Line, G5393252983, G5421974903, G5796613860, G5967599077, G6033112984, G675437911, G6874468849, G7084143925, G7167251299, G7242154527, G745419941, G7590065177, G7799207878, G8575141037, G8681408770, G8904046840, G8991510593, G99296377
OpenAlex ID: W7211965330
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