Modulate Organic-Metal Oxide Heterojunction via [1,6] Azafulleroid for Highly Efficient Organic Solar Cells

Chang Zhi Li, Jiang Huang, Huanxin Ju, Yue Zang, Jianyuan Zhang, Junfa Zhu, Hongzheng Chen, Alex K.Y. Jen

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

A new structural design of interfacial materials aza[60]fulleroid was reported that promotes optimal contact between organic bulk heterojuctions (BHJs) with metal oxides. By facilitating effective π-conjugation between fullerene and aromatic addends the electronic coupling between fullerene and the underneath metal oxides (through conjugated anchors) could be enhanced. As a result, new interfacial modifiers with varied functionalities and energetics are found not only to be able to shift the WF of ZnO, but also mediate the electron extraction from BHJ to metal oxide ETL. In addition, it is possible that it can also optimize the phase evolution of the BHJ layer atop.

Original languageEnglish (US)
Pages (from-to)7269-7275
Number of pages7
JournalAdvanced Materials
Volume28
Issue number33
DOIs
StatePublished - Jan 1 2016

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • fullerenes
  • fulleroids
  • interfaces
  • metal oxides
  • organic solar cells

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