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Comparing the devic...
Comparing the device physics, dynamics and morphology of polymer solar cells employing conventional PCBM and non-fullerene polymer acceptor N2200
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- Yuan, Jianyu (författare)
- Soochow University, Peoples R China
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- Guo, Wenping (författare)
- Fudan University, Peoples R China
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- Xia, Yuxin (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Ford, Michael J. (författare)
- University of Calif Santa Barbara, CA 93106 USA; University of Calif Santa Barbara, CA 93106 USA
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- Jin, Feng (författare)
- Fudan University, Peoples R China
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- Liu, Dongyang (författare)
- Soochow University, Peoples R China
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- Zhao, Haibin (författare)
- Fudan University, Peoples R China
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- Inganäs, Olle (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Bazan, Guillermo C. (författare)
- University of Calif Santa Barbara, CA 93106 USA; University of Calif Santa Barbara, CA 93106 USA
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- Ma, Wanli (författare)
- Soochow University, Peoples R China
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(creator_code:org_t)
- ELSEVIER SCIENCE BV, 2017
- 2017
- Engelska.
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Ingår i: Nano Energy. - : ELSEVIER SCIENCE BV. - 2211-2855 .- 2211-3282. ; 35, s. 251-262
- Relaterad länk:
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http://manuscript.el...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Current all polymer solar cells still suffer from low fill factors (FF) and short-circuit current density (J(sc)) compared with the conventional polymer/fullerene system. Herein in this work, devices using PTP8 as the electron donor and [70]PCBM as well as widely used polymer N2200 as the electron acceptor were systematically studied and compared. The major loss mechanisms in the all polymer solar cells were investigated to understand their relatively lower performance than the PTP8/fullerene system. By performing in-depth analysis on ultrafast transient transmission spectroscopy results, we estimated that in PTP8/N2200 device nearly half of the charges recombine geminately, which is confirmed as the major factor hindering the device performance of all polymer solar cells compared with polymer/fullerene system. Through thorough morphology analysis, the low charge generation efficiency is attributed to the reduced crystallinity of N2200 in the blend film and the unfavorable face-to-edge orientation at the donor/acceptor heterojunction. Coupling these results with knowledge from efficient polymer/fullerene systems, the future design of new polymers can devote to increase the attraction between the pi face of donor and acceptor, leading to enhanced face-to-face orientation at the heterojunction, while maintaining a high pi-pi stacking order for each polymer.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- All-polymer solar cells; Geminate recombination; Energy loss; Morphology; Orientation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Yuan, Jianyu
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Guo, Wenping
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Xia, Yuxin
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Ford, Michael J.
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Jin, Feng
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Liu, Dongyang
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visa fler...
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Zhao, Haibin
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Inganäs, Olle
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Bazan, Guillermo ...
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Ma, Wanli
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Materialkemi
- Artiklar i publikationen
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Nano Energy
- Av lärosätet
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Linköpings universitet