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High-Performance Or...
High-Performance Organic Photodetectors from a High-Bandgap Indacenodithiophene-Based π-Conjugated Donor-Acceptor Polymer
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- Benavides, Cindy Montenegro (author)
- Siemens AG,Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
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- Murto, Petri Henrik, 1984 (author)
- Flinders University of South Australia,Chalmers tekniska högskola,Chalmers University of Technology
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- Chochos, Christos L. (author)
- University of Ioannina,Advent Technologies SA
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- Gregoriou, Vasilis G. (author)
- Advent Technologies SA
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- Avgeropoulos, Apostolos (author)
- University of Ioannina
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- Xu, Xiaofeng, 1984 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bini, Kim, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Andersson, Mats (author)
- Flinders University of South Australia
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- Sharma, A. (author)
- Flinders University of South Australia,Université de Bordeaux,University of Bordeaux
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- Schmidt, Oliver (author)
- Siemens AG
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- Brabec, Christoph J. (author)
- Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
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- Wang, Ergang, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Tedde, Sandro F. (author)
- Siemens AG
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(creator_code:org_t)
- 2018-03-28
- 2018
- English.
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In: ACS Applied Materials & Interfaces. - : American Chemical Society (ACS). - 1944-8252 .- 1944-8244. ; 10:15, s. 12937-12946
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Subject headings
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- A conjugated donor-acceptor polymer, poly[4,4,9,9-tetrakis(4-hexylphenyl)-4,9-dihydro-s-indaceno[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 (PC 61 BM) 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:PC 61 BM 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 × 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
Keyword
- high speed
- frequency response
- concentration ratio
- red organic photodetectors
- dark current density
- molecular weight
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Benavides, Cindy ...
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Murto, Petri Hen ...
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Chochos, Christo ...
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Gregoriou, Vasil ...
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Avgeropoulos, Ap ...
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Xu, Xiaofeng, 19 ...
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show more...
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Bini, Kim, 1987
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Andersson, Mats
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Sharma, A.
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Schmidt, Oliver
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Brabec, Christop ...
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Wang, Ergang, 19 ...
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Tedde, Sandro F.
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show less...
- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Chemical Enginee ...
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ACS Applied Mate ...
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Chalmers University of Technology