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  • Xiao, ManjunXiangtan Univ, Peoples R China; South China Univ Technol, Peoples R China; Changzhou Univ, Peoples R China (författare)

Approaching 19% efficiency and stable binary polymer solar cells enabled by a solidification strategy of solvent additive

  • Artikel/kapitelEngelska2023

Förlag, utgivningsår, omfång ...

  • SCIENCE PRESS,2023
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:liu-193585
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-193585URI
  • https://doi.org/10.1007/s11426-023-1564-8DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

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Klassifikation

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

Anmärkningar

  • Funding Agencies|Scientific Research Project of Education Department of Hunan Province [21C0091]; Open Fund of the State Key Laboratory of Luminescent Materials and Devices (South China University of Technology); National Natural Science Foundation of China [22209131, 22005121, GDRGCS2022002, 2022YFE0132400]; School of Materials Science and Engineering, Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and Applications [21875182, 52173023, GDRGCS2021002]; National Key Research and Development Program of China [GDRGCS2022003]; Key Scientific and Technological Innovation Team Project of Shaanxi Province [2020TD-002]; 111 Project 2.0 [BP0618008]; Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
  • Additives play a crucial role in enhancing the photovoltaic performance of polymer solar cells (PSCs). However, the typical additives used to optimize blend morphology of PSCs are still high boiling-point solvents, while their trace residues may reduce device stability. Herein, an effective strategy of "solidification of solvent additive (SSA)" has been developed to convert additive from liquid to solid, by introducing a covalent bond into low-cost solvent diphenyl sulfide (DPS) to synthesize solid dibenzothiophene (DBT) in one-step, which achieves optimized morphology thus promoting efficiency and device stability. Owing to the fine planarity and volatilization of DBT, the DBT-processed films achieve ordered molecular crystallinity and suitable phase separation compared to the additive-free or DPS-treated ones. Importantly, the DBT-processed device also possesses improved light absorption, enhanced charge transport, and thus a champion efficiency of 11.9% is achieved in the PM6:Y6-based PSCs with an excellent additive component tolerance, reproducibility, and stability. Additionally, the DBT-processed PM6:L8-BO-based PSCs are further fabricated to study the universality of SSA strategy, offering an impressive efficiency approaching 19% as one of the highest values in binary PSCs. In conclusion, this article developed a promising strategy named SSA to boost efficiency and improve stability of PSCs.

Ämnesord och genrebeteckningar

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

  • Liu, LongfeiXiangtan Univ, Peoples R China (författare)
  • Meng, YongdieXiangtan Univ, Peoples R China (författare)
  • Fan, BaobingCity Univ Hong Kong, Peoples R China (författare)
  • Su, WenyanXian Univ Sci & Technol, Peoples R China (författare)
  • Jin, CongguiXiangtan Univ, Peoples R China (författare)
  • Liao, LuochengXiangtan Univ, Peoples R China (författare)
  • Yi, FanXiangtan Univ, Peoples R China; Xi An Jiao Tong Univ, Peoples R China (författare)
  • Xu, ChaoXiangtan Univ, Peoples R China; Changzhou Univ, Peoples R China (författare)
  • Zhang, RuiLinköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten(Swepub:liu)ruizh84 (författare)
  • Jen, Alex K. -Y.City Univ Hong Kong, Peoples R China (författare)
  • Ma, WeiXi An Jiao Tong Univ, Peoples R China (författare)
  • Fan, QunpingXi An Jiao Tong Univ, Peoples R China; Changzhou Univ, Peoples R China (författare)
  • Xiangtan Univ, Peoples R China; South China Univ Technol, Peoples R China; Changzhou Univ, Peoples R ChinaXiangtan Univ, Peoples R China (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Science in China Series B: SCIENCE PRESS66, s. 1500-15101674-72911869-1870

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