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Highly efficient inverted poly(3-hexylthiophene): Methano-fullerene [6,6]-phenyl C71-butyric acid methyl ester bulk heterojunction solar cell with Cs2CO3 and MoO3

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35 Citations (Scopus)

Abstract

We have studied the fabrication of an inverted P3HT:PC71BM bulk hetero-junction (IBHJ) solar cell using ultrathin cesium carbonate (Cs 2CO3) and molybdenum trioxide (MoO3) as the cathodic and anodic buffer layers, respectively. The influence of MoO 3 thickness on the performance of the IBHJ solar cells was investigated for thicknesses ranging from 0.75 to 3 nm and the optimum thickness was found to be 2 nm, which showed the highest power conversion efficiency of 4.01%. We also found that the power conversion efficiency of the IBHJ solar cells is relatively retained even in low temperature while that of BHJ solar cell rapidly decreased with decreasing temperature and the stability in air is also much better.

Original languageEnglish
Pages (from-to)353-357
Number of pages5
JournalOrganic Electronics
Volume12
Issue number2
DOIs
Publication statusPublished - Feb 2011

Bibliographical note

Funding Information:
This work was supported by the Ministry of Knowledge Economy, Korea.

Keywords

  • Inverted cell
  • Organic solar cell
  • Stable cell

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