High-Performance Organic Photodetectors from a High-Bandgap Indacenodithiophene-Based π-Conjugated Donor-Acceptor Polymer.

Benavides CM, Murto P, Chochos CL, Gregoriou VG, Avgeropoulos A, Xu X, Bini K, Sharma A, Andersson MR, Schmidt O, Brabec C, Wang E, Tedde SF (2018)

Publication Language: English

Publication Status: Published

Publication Type: Journal article

Publication year: 2018

Journal

ACS Applied Materials and Interfaces American Chemical Society

Publisher: AMER CHEMICAL SOC

Book Volume: 10

Pages Range: 12937-12946

Journal Issue: 15

URI: https://pubs.acs.org/doi/abs/10.1021/acsami.8b03824

DOI: 10.1021/acsami.8b03824

Abstract

A conjugated donor-acceptor polymer, poly[4,4,9,9-tetrakis (4-hexylpheny1)-4,9-dihydro-s-in dace no [1,2-b: 5,6-b']dithiophene 2,7 diyl alt-5 (2-ethylhexyl)-4H-thieno[3,4-c] pyrrole-4,6 (5H)-dione-1,3-diyl](PIDT-TPD), is blended with the fullerene derivative [6,6]phenyl-C61-butyric acid methyl ester (PC61BM) for the fabrication of thin and solution-processed organic photodetectors (OPDs). Systematic screening of the concentration ratio of the blend and the molecular weight of the polymer is performed to optimize the active layer morphology and the OPD performance. The device comprising a medium molecular weight polymer (27.0 kg/mol) in a PIDT-TPD:PC61BM 1:1 ratio exhibits an external quantum efficiency of 52% at 610 nm, a dark current density of 1 nA/cm(2), a detectivity of 1.44 x 10(13) Jones, and a maximum 3 dB cutoff frequency of 100 kHz at -5 V bias. These results are remarkable among the state-of-the-art red photodetectors based on conjugated polymers. As such, this work presents a functional organic active material for high-speed OPDs with a linear photoresponse at different light intensities.

Authors with CRIS profile

Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET)

Involved external institutions

Flinders University AU Australia (AU) Chalmers University of Technology / Chalmers tekniska högskola SE Sweden (SE) Advent Technologies SA GR Greece (GR) Siemens AG, Healthcare Sector DE Germany (DE) University of Ioannina / Πανεπιστήμιο Ιωαννίνων GR Greece (GR)

How to cite

APA:

Benavides, C.M., Murto, P., Chochos, C.L., Gregoriou, V.G., Avgeropoulos, A., Xu, X.,... Tedde, S.F. (2018). High-Performance Organic Photodetectors from a High-Bandgap Indacenodithiophene-Based π-Conjugated Donor-Acceptor Polymer. ACS Applied Materials and Interfaces, 10(15), 12937-12946. https://doi.org/10.1021/acsami.8b03824

MLA:

Benavides, Cindy Montenegro, et al. "High-Performance Organic Photodetectors from a High-Bandgap Indacenodithiophene-Based π-Conjugated Donor-Acceptor Polymer." ACS Applied Materials and Interfaces 10.15 (2018): 12937-12946.

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