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Organic Bidirectional Phototransistors Based on Diketopyrrolopyrrole and Fullerene

Title data

Kahle, Frank-Julian ; Hahn, Tobias ; Mukhopadhyay, Tushita ; Puttaraju, Boregowda ; Patil, Satish ; Köhler, Anna:
Organic Bidirectional Phototransistors Based on Diketopyrrolopyrrole and Fullerene.
In: Advanced Functional Materials. (2018) .
ISSN 1616-301X
DOI: https://doi.org/10.1002/adfm.201805684

Abstract in another language

It is shown that simple bilayer devices consisting of the diketopyrrolopyrrole (DPP) monomer Ph‐TDPP‐Ph as donor and C60 as acceptor feature J–V‐characteristics of a bidirectional organic phototransistor where illumination intensity plays the role of the gate voltage as compared to a conventional field‐effect transistor. The output current may therefore be controlled both electrically and optically. The underlying mechanism is based on the good charge transport in Ph‐TDPP‐Ph and C60, the intrinsic dissociation properties of C60, and the presence of an injection barrier for holes. In addition to this, it is demonstrated that the observed behavior of the DPP/C60 system allows the realization of basic logic elements like NOT‐, AND‐, and OR‐Gates, which may provide the basis for advanced analog and digital applications.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: Online Version of Record before inclusion in an issue
Keywords: autoionization; C 60; charge transfer states; logic operations; thin films
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik II - Optoelektronik weicher Materie
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik II - Optoelektronik weicher Materie > Lehrstuhl Experimentalphysik II - Optoelektronik weicher Materie - Univ.-Prof. Dr. Anna Köhler
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 16 Oct 2018 07:01
Last Modified: 16 Oct 2018 07:01
URI: https://eref.uni-bayreuth.de/id/eprint/46047