π‐Conjugated Lewis Base: Efficient Trap‐Passivation and Charge‐Extraction for Hybrid Perovskite Solar Cells

A π-conjugated Lewis base is introduced into perovskite solar cells, namely, indacenodithiophene end-capped with 1.1-dicyanomethylene-3-indanone (IDIC), as a multifunctional interlayer, which combines efficient trap-passivation and electron-extraction. Perovskite solar cells with IDIC layers yield higher photovoltages and photocurrents, and 45% enhanced efficiency compared with control devices without IDIC. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing…

• NS
  National Science Foundation

  Awards: 1420645, OIA-1538893, DMR-1420645, 1538893, DMR‐1420645
• NN
  National Natural Science Foundation of China

  Awards: DMR-1420645, 21504066, 21673011
• MR
  Materials Research Science and Engineering Center, Harvard University

  Awards: DMR-1420645, 1420645
• DO
  Division of Materials Research

  Awards: 1420645, DMR-1420645
• OO
  Office of Experimental Program to Stimulate Competitive Research

  Award: OIA-1538893