Facilely Synthesized spiro[fluorene-9,9′-phenanthren-10′-one] in Donor–Acceptor–Donor Hole-Transporting Materials for Perovskite Solar Cells

Yih Chun Chen, Shao Ku Huang, Shao Sian Li, Yao Yu Tsai, Chih Ping Chen, Chun Wei Chen, Yuan Jay Chang

研究成果: 雜誌貢獻文章

18 引文 斯高帕斯(Scopus)

摘要

We have demonstrated two novel donor–acceptor–donor (D–A–D) hole-transport material (HTM) with spiro[fluorene-9,9′-phenanthren-10′-one] as the core structure, which can be synthesized through a low-cost process in high yield. Compared to the incorporation of the conventional HTM of commonly used 2,2′,7,7′-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene (Spiro-OMeTAD), the synthesis process is greatly simplified for the presented D–A–D materials, including a minimum number of purification processes. This results in an increased production yield (>55 %) and suppressed production cost (<30 $ g−1), in addition to high power conversion efficiency (PCE) in perovskite solar cells (PSCs). The PCE of a PSC using our D–A–D HTM reaches 16.06 %, similar to that of Spiro-OMeTAD (16.08 %), which is attributed to comparable hole mobility and charge-transfer efficiency. D–A–D HTMs also provide better moisture resistivity to prolong the lifetime of PSCs under ambient conditions relative to their Spiro-OMeTAD counterparts. The proposed new type of D–A–D HTM has shown promising performance as an alternative HTM for PSCs and can be synthesized with high production throughput.
原文英語
頁(從 - 到)3225-3233
頁數9
期刊ChemSusChem
11
發行號18
DOIs
出版狀態已發佈 - 九月 21 2018

Keywords

  • donor–acceptor
  • hole-transport material
  • perovskite
  • solar cells
  • stability

ASJC Scopus subject areas

  • Environmental Chemistry
  • Chemical Engineering(all)
  • Materials Science(all)
  • Energy(all)

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