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Sökning: WFRF:(Su Mengyao) > (2019) > A monothiophene uni...

  • Sun, HuiliangSouthern Univ Sci and Technol SUSTech, Peoples R China; Southern Univ Sci and Technol SUSTech, Peoples R China (författare)

A monothiophene unit incorporating both fluoro and ester substitution enabling high-performance donor polymers for non-fullerene solar cells with 16.4% efficiency

  • Artikel/kapitelEngelska2019

Förlag, utgivningsår, omfång ...

  • 2019
  • ROYAL SOC CHEMISTRY,2019
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:liu-162545
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-162545URI
  • https://doi.org/10.1039/c9ee01890eDOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Funding Agencies|NSFCNational Natural Science Foundation of China [51573076, 21801124]; Shenzhen Basic Research Fund [JCYJ20170817105905899]; Shenzhen Peacock Plan Project [KQTD20140630110339343]; Shenzhen Key Lab funding [ZDSYS201505291525382]; Shen Zhen Technology and Innovation Commission [JCYJ20170413173814007, JCYJ20170818113905024]; Hong Kong Research Grants Council (Research Impact Fund)Hong Kong Research Grants Council [R602118, 16305915, 16322416, 606012, 16303917]; Hong Kong Innovation and Technology Commission [ITC-CNERC14SC01, ITS/471/18]; HKUST presidents office [FP201]; Center for Computational Science and Engineering of SUSTech
  • Thiophene and its derivatives have been extensively used in organic electronics, particularly in the field of polymer solar cells (PSCs). Significant research efforts have been dedicated to modifying thiophene-based units by attaching electron-donating or withdrawing groups to tune the energy levels of conjugated materials. Herein, we report the design and synthesis of a novel thiophene derivative, FE-T, featuring a monothiophene functionalized with both an electron-withdrawing fluorine atom (F) and an ester group (E). The FE-T unit possesses distinctive advantages of both F and E groups, the synergistic effects of which enable significant downshifting of the energy levels and enhanced aggregation/crystallinity of the resulting organic materials. Shown in this work are a series of polymers obtained by incorporating the FE-T unit into a PM6 polymer to fine-tune the energetics and morphology of this high-performance PSC material. The optimal polymer in the series shows a downshifted HOMO and an improved morphology, leading to a high PCE of 16.4% with a small energy loss (0.53 eV) enabled by the reduced non-radiative energy loss (0.23 eV), which are among the best values reported for non-fullerene PSCs to date. This work shows that the FE-T unit is a promising building block to construct donor polymers for high-performance organic photovoltaic cells.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Liu, TaoHKUST, Peoples R China (författare)
  • Yu, JianweiLinköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten(Swepub:liu)jiayu39 (författare)
  • Lau, Tsz-KiChinese Univ Hong Kong, Peoples R China (författare)
  • Zhang, GuangyeeFlexPV Ltd, Peoples R China (författare)
  • Zhang, YujieSouthern Univ Sci and Technol SUSTech, Peoples R China; Southern Univ Sci and Technol SUSTech, Peoples R China (författare)
  • Su, MengyaoSouthern Univ Sci and Technol SUSTech, Peoples R China; Southern Univ Sci and Technol SUSTech, Peoples R China (författare)
  • Tang, YuminSouthern Univ Sci and Technol SUSTech, Peoples R China; Southern Univ Sci and Technol SUSTech, Peoples R China (författare)
  • Ma, RuijieHKUST, Peoples R China; HKUST, Peoples R China (författare)
  • Liu, BinSouthern Univ Sci and Technol SUSTech, Peoples R China; Southern Univ Sci and Technol SUSTech, Peoples R China (författare)
  • Liang, JiaenHKUST, Peoples R China; HKUST, Peoples R China (författare)
  • Feng, KuiSouthern Univ Sci and Technol SUSTech, Peoples R China; Southern Univ Sci and Technol SUSTech, Peoples R China (författare)
  • Lu, XinhuiChinese Univ Hong Kong, Peoples R China (författare)
  • Guo, XugangSouthern Univ Sci and Technol SUSTech, Peoples R China; Southern Univ Sci and Technol SUSTech, Peoples R China (författare)
  • Gao, FengLinköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten(Swepub:liu)fenga88 (författare)
  • Yan, HeHKUST, Peoples R China; HKUST, Peoples R China (författare)
  • Southern Univ Sci and Technol SUSTech, Peoples R China; Southern Univ Sci and Technol SUSTech, Peoples R ChinaHKUST, Peoples R China (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Energy & Environmental Science: ROYAL SOC CHEMISTRY12:11, s. 3328-33371754-56921754-5706

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