Detrimental effect of silicon nanoparticles on P3HT:PCBM-Based OPV devices

Mejd Alsari, Yamila M. Omar, Manas K. Panda, Matteo Chiesa, Panče Naumov, Samuele Lilliu

Research output: Contribution to journalArticlepeer-review


The effect of incorporating 2.85 nm red luminescent silicon nanoparticles as photoluminescence down-shifters on the efficiency of organic solar cells based on regioregular poly(3-hexylthiophene-2,5-diyl) and [6,6]-phenyl-C71-butyric acid methyl ester is investigated. The silicon nanoparticles are deposited by spin coating and inkjet printing on different layers of the devices. The presence of the silicon nanoparticles in the organic solar cells does not result in any performance improvement and causes a significant degradation of the power conversion efficiency. Power conversion efficiency (PCE) is measured for organic solar cells based on P3HT:PCBM blended with red fluorescent 2.85 nm silicon nanoparticles (Si-NPs) with different (P3HT:PCBM):Si-NP weight ratios (from 1:0 Ref. to 1:2). The PCE decreases as the amount of Si-NPs increases.

Original languageEnglish (US)
Pages (from-to)1155-1160
Number of pages6
JournalMacromolecular Chemistry and Physics
Issue number11
StatePublished - Jun 1 2015


  • inkjet printing
  • photoluminescence down-shifter
  • polymer solar cell
  • silicon nanoparticles

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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