Jump to main content
Jump to site search


Efficient and thermally stable inverted perovskite solar cells by introduction of non-fullerene electron transporting material

Abstract

Highly efficient and thermally stable inverted CH3NH3PbI3 (MAPbI3) and HC(NH2)2PbI3-xBrx (FAPbI3-xBrx) perovskite planar solar cells are demonstrated by using a N,N'-Bis(phenylmethyl)naphthalene-1,4,5,8-tetracarboxylic diimide (NDI-PM) based electron transporting material (ETM) instead of conventional fullerene based phenyl-C61-butyric acid methyl ester (PCBM) ETM. The MAPbI3 and FAPbI3-xBrx devices with NDI-PM based ETM exhibit 18.4 % and 19.6 % power conversion efficiency under illumination of 1 Sun (100 mW cm-2), respectively, which are comparable to the efficiency of PCBM ETM based ones (18.9 % and 20.0 %). The improved thermal stability of NDI-based perovskite solar cells are attributed to much stronger hydrogen-bonds in the NDI-PM molecular crystals than the PCBM crystals.

Back to tab navigation

Supplementary files

Publication details

The article was received on 04 Aug 2017, accepted on 12 Sep 2017 and first published on 13 Sep 2017


Article type: Communication
DOI: 10.1039/C7TA06900F
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
  •   Request permissions

    Efficient and thermally stable inverted perovskite solar cells by introduction of non-fullerene electron transporting material

    J. H. Heo, S. Lee, S. Jung, O. Kwon and S. H. Im, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA06900F

Search articles by author

Spotlight

Advertisements