Phototuning Selectively Hole and Electron Transport in Optically Switchable Ambipolar Transistors

Wassima Rekab, Tim Leydecker, Lili Hou, Hu Chen, Mindaugas Kirkus, Camila Cendra, Martin Herder, Stefan Hecht, Alberto Salleo, Iain McCulloch, Emanuele Orgiu, Paolo Samorì

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


One of the grand challenges in organic electronics is to develop multicomponent materials wherein each component imparts a different and independently addressable property to the hybrid system. In this way, the combination of the pristine properties of each component is not only preserved but also combined with unprecedented properties emerging from the mutual interaction between the components. Here for the first time, that tri-component materials comprised of an ambipolar diketopyrrolopyrrole-based semiconducting polymer combined with two different photochromic diarylethene molecules possessing ad hoc energy levels can be used to develop organic field-effect transistors, in which the transport of both, holes and electrons, can be photo-modulated. A fully reversible light-switching process is demonstrated, with a light-controlled 100-fold modulation of p-type charge transport and a tenfold modulation of n-type charge transport. These findings pave the way for photo-tunable inverters and ultimately for completely re-addressable high-performance circuits comprising optical storage units and ambipolar field-effect transistors.
Original languageEnglish (US)
Pages (from-to)1908944
JournalAdvanced Functional Materials
Issue number5
StatePublished - Dec 4 2019

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: W.R. and T.L. contributed equally to this work. The authors acknowledge funding from the European Commission through the Marie Sklodowska-Curie ITN project iSwitch (GA-642196), the ERC projects SUPRAFUNCTION (GA-257305) and LIGHT4FUNCTION (GA-308117), the Agence Nationale de la Recherche through the Labex project CSC (ANR-10-LABX-0026 CSC) within the Investissement d'Avenir program (ANR-10-120 IDEX-0002-02), the Région Grand Est project HARWEST and the International Center for Frontier Research in Chemistry (icFRC) as well as the German Research Foundation (DFG via SFB 658 and SFB 951). Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515.


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