Rubrene/fullerene heterostructures with a half-gap electroluminescence threshold and large photovoltage

Ajay K. Pandey, Jean-Michel Nunzi

Research output: Contribution to journalArticlepeer-review

110 Citations (Scopus)

Abstract

Light and current generation functions from a rubrene/fullerene heterostructure are integrated into an efficient organic dual device (see figure). Electroluminescence, with the characteristic rubrene color, has a turn-on voltage less than 1 V. Solar-power conversion efficiency reaches 3% with a 5.3 mA cm(-2) short-circuit current density and almost 1 V open-circuit voltage under AM 1.5 illumination. The half-bandgap electroluminescence turn-on voltage is interpreted as an Auger fountain effect.

Original languageEnglish
Pages (from-to)3613-3617
Number of pages5
JournalAdvanced Materials
Volume19
Issue number21
DOIs
Publication statusPublished - 5 Nov 2007

Keywords

  • THIN-FILM TRANSISTORS
  • LIGHT-EMITTING-DIODES
  • ENERGY UP-CONVERSION
  • CONJUGATED POLYMERS
  • SOLAR-CELLS
  • DEVICES
  • HETEROJUNCTION
  • VOLTAGE
  • C-60

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