2017
DOI: 10.1002/asia.201700661
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Impact of Fluorine Atoms on Perylene Diimide Derivative for Fullerene‐Free Organic Photovoltaics

Abstract: The incorporation of fluorine atoms in organic semiconducting materials has attracted much attention recently due to its unique function to manipulate the molecular packing, film morphology and molecular energy levels. In this work, two perylenediimide (PDI) derivatives FPDI-CDTph and FPDI-CDTph2F were designed and synthesized to investigate the impact of fluorination on non-fullerene acceptors. Both FPDI-CDTph and FPDI-CDTph2F exhibited strong and broad absorption profiles, suitable lowest unoccupied molecula… Show more

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Cited by 11 publications
(2 citation statements)
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“…The work successfully demonstrated that a small driving force can maximize the achievable efficiency of OSCs by reduction of V loss due to the non-radiative recombination processes, which will expand the potential possibilities of NFA-based OPV systems to lead toward a more practical technology. Although numerous examples of the bay-bridged dimeric PDIs have been explored so far [103][104][105][106][107][108][109][110][111][112][113][114][115][116][117][118][119], to the best of our knowledge, the above mentioned 3.2A/P3TEA system exhibited the highest performance due to the photovoltaic properties with the minimal voltage loss and the drastically enhanced J SC .…”
Section: Bay-bridged Dimeric Perylene Diimidesmentioning
confidence: 99%
“…The work successfully demonstrated that a small driving force can maximize the achievable efficiency of OSCs by reduction of V loss due to the non-radiative recombination processes, which will expand the potential possibilities of NFA-based OPV systems to lead toward a more practical technology. Although numerous examples of the bay-bridged dimeric PDIs have been explored so far [103][104][105][106][107][108][109][110][111][112][113][114][115][116][117][118][119], to the best of our knowledge, the above mentioned 3.2A/P3TEA system exhibited the highest performance due to the photovoltaic properties with the minimal voltage loss and the drastically enhanced J SC .…”
Section: Bay-bridged Dimeric Perylene Diimidesmentioning
confidence: 99%
“…Perylenediimide derivatives are characterized by intense light absorption, high electron mobilities and good thermal stability that make these molecules suitable candidates as acceptor materials in non‐fullerene OSCs. FPDI‐CDTph and FPDI‐CDTph2F have been proven as efficient acceptors in BHJ active layers with the fluorinated polymer PTB7‐Th. Better performances have been obtained for devices with FPDI‐CDTph2F (PCE 6.03 % vs. 4.10 % of the non‐fluorinated acceptor).…”
Section: Organic Fluorinated Materials For Photovoltaicsmentioning
confidence: 99%