Color‐Selective Printed Organic Photodiodes for Filterless Multichannel Visible Light Communication

Strobel, Noah; Droseros, Nikolaos; Köntges, Wolfgang; Seiberlich, Mervin; Pietsch, Manuel; Schlisske, Stefan; Lindheimer, Felix; Schröder, Rasmus R.; Lemmer, Uli; Pfannmöller, Martin; Banerji, Natalie; Hernandez‐Sosa, Gerardo (2020). Color‐Selective Printed Organic Photodiodes for Filterless Multichannel Visible Light Communication. Advanced materials, 32(12), e1908258. Wiley-VCH 10.1002/adma.201908258

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Future lightweight, flexible, and wearable electronics will employ visible-light- communication schemes to interact within indoor environments. Organic photodiodes are particularly well suited for such technologies as they enable chemically tailored optoelectronic performance and fabrication by printing techniques on thin and flexible substrates. However, previous methods have failed to address versatile functionality regarding wavelength selectivity without increasing fabrication complexity. This work introduces a general solution for printing wavelength-selective bulk-heterojunction photodetectors through engineering of the ink formulation. Nonfullerene acceptors are incorporated in a transparent polymer donor matrix to narrow and tune the response in the visible range without optical filters or light-management techniques. This approach effectively decouples the optical response from the viscoelastic ink properties, simplifying process development. A thorough morphological and spectroscopic investigation finds excellent charge-carrier dynamics enabling state-of-the-art responsivities >102 mA W−1 and cutoff frequencies >1.5 MHz. Finally, the color selectivity and high performance are demonstrated in a filterless visible-light-communication system capable of demultiplexing intermixed optical signals.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Droseros, Nikolaos and Banerji, Natalie

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

0935-9648

Publisher:

Wiley-VCH

Funders:

[4] Swiss National Science Foundation

Language:

English

Submitter:

Olivier Nicolas Ludovic Bardagot

Date Deposited:

25 Mar 2020 07:59

Last Modified:

26 Jun 2020 02:27

Publisher DOI:

10.1002/adma.201908258

Related URLs:

PubMed ID:

32068919

Additional Information:

Action: MSCA-ITN-ETN, Acronym: INFORM, Grant number: 675867
["European Union (EU)" and "Horizon 2020"]
["Euratom" and "Euratom research and training programme 2014-2018"]

Swiss National Science Foundation
Type: Project Funding, Grant number: 200020_184819

BORIS DOI:

10.7892/boris.140729

URI:

https://boris.unibe.ch/id/eprint/140729

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