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Influence of Incorp...
Influence of Incorporating Different Electron-Rich Thiophene-Based Units on the Photovoltaic Properties of Isoindigo-Based Conjugated Polymers: An Experimental and DFT Study
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- Zhuang, Wenliu, 1979 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Bolognesi, Margherita (author)
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- Seri, Mirko (author)
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR),Institute for organic syntheses and photoreactivity (ISOF-CNR)
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- Henriksson, Patrik, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Gedefaw, Desta Antenehe, 1971 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kroon, Renee, 1982 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Jarvid, Markus, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lundin, Angelica, 1971 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Wang, Ergang, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Muccini, Michele (author)
- Istituto per lo Studio dei Materiali Nanostrutturati del C.N.R.
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- Andersson, Mats, 1966 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2013-10-16
- 2013
- English.
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In: Macromolecules. - : American Chemical Society (ACS). - 1520-5835 .- 0024-9297. ; 46:21, s. 8488-8499
- Related links:
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http://dx.doi.org/10...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
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- A series of novel donor–acceptor conjugated alternating copolymers based on the isoindigo acceptor moiety have been designed, synthesized, and characterized, in order to explore the potential of isoindigo for efficient donor materials with high photovoltages in solar cells. We have systematically investigated and discussed the effect of combining different electron-rich thiophene-based units on the structural, optical, electronic, and photovoltaic properties of the resulting polymers. Morphological studies and quantum-chemical calculations are carried out to gain insights into the different properties. The power conversion efficiencies (PCEs) of the solar cells based on these polymers are increased step by step by over 3-fold through a rational structural modification. Among them, PBDTA-MIM shows a PCE of 5.4%, which is to our knowledge the best result achieved among isoindigo-based polymers for solar cells combined with PC61BM as the acceptor using the conventional device configuration. Our results further emphasize the use of isoindigo as an effective acceptor unit and highlight the importance of carefully choosing appropriate chemical structure to design efficient donor–acceptor polymers for organic solar cells. In addition, the resulting low optical gaps, the promising PCEs with PC61BM as the acceptor, and the good open-circuit voltages (up to 0.8 V) synergistically demonstrate the potential of this class of polymers as donor materials for bottom subcells in organic tandem solar cells.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
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Zhuang, Wenliu, ...
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Bolognesi, Margh ...
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Seri, Mirko
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Henriksson, Patr ...
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Gedefaw, Desta A ...
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Kroon, Renee, 19 ...
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Jarvid, Markus, ...
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Lundin, Angelica ...
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Wang, Ergang, 19 ...
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Muccini, Michele
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Andersson, Mats, ...
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ENGINEERING AND ...
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and Environmental En ...
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and Chemical Enginee ...
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ENGINEERING AND ...
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and Electrical Engin ...
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NATURAL SCIENCES
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Macromolecules
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Chalmers University of Technology