Defect-induced loss mechanisms in polymer-inorganic planar heterojunction solar cells

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

47 Scopus Citations
View graph of relations

Author(s)

  • Michael Hartel
  • Song Chen
  • Benjamin Swerdlow
  • Jesse Manders
  • Kirk Schanze
  • Franky So

Detail(s)

Original languageEnglish
Pages (from-to)7215-7218
Journal / PublicationACS Applied Materials and Interfaces
Volume5
Issue number15
Publication statusPublished - 14 Aug 2013
Externally publishedYes

Abstract

The effect of ZnO defects on photoexcited charge carrier recombination and forward induced charge transfer was studied in organic-inorganic bilayer organic heterojunction solar cells. Decreased bimolecular recombination via passivation of ZnO nanopariticle defects resulted in longer carrier lifetime as determined by transient photovoltage (TPV) measurements. It was also found by time-resolved photoluminescence (TRPL) measurements that defect passivation decreased the fluorescence lifetime which indicated higher exciton dissociation efficiency. Through passivation of the ZnO nanoparticles defects, the two loss mechanisms were reduced and the power conversion efficiency (PCE) is significantly enhanced. © 2013 American Chemical Society.

Research Area(s)

  • defects, organic solar cell, PCDTBT, PL lifetime, transient photovoltage, ZnO nanoparticles

Citation Format(s)

Defect-induced loss mechanisms in polymer-inorganic planar heterojunction solar cells. / Hartel, Michael; Chen, Song; Swerdlow, Benjamin et al.

In: ACS Applied Materials and Interfaces, Vol. 5, No. 15, 14.08.2013, p. 7215-7218.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review