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

Jin Hyuck Heo, Seung Chul Lee, Su Kyo Jung, O. Pil Kwon, Sang Hyuk Im

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Highly efficient and thermally stable inverted CH 3 NH 3 PbI 3 (MAPbI 3 ) and HC(NH 2 ) 2 PbI 3-x Br x (FAPbI 3-x Br x ) 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 a conventional fullerene-based phenyl-C 61 -butyric acid methyl ester (PCBM) ETM. The MAPbI 3 and FAPbI 3-x Br x devices with the NDI-PM-based ETM exhibit 18.4% and 19.6% power conversion efficiency under an 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 is attributed to much stronger hydrogen bonds in the NDI-PM molecular crystals than the PCBM crystals.

Original languageEnglish
Pages (from-to)20615-20622
Number of pages8
JournalJournal of Materials Chemistry A
Volume5
Issue number39
DOIs
Publication statusPublished - 2017 Jan 1

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Butyric acid
Butyric Acid
Esters
Electrons
Fullerenes
Molecular crystals
Naphthalene
Sun
Perovskite
Conversion efficiency
Solar cells
Hydrogen bonds
Thermodynamic stability
Lighting
Crystals
Perovskite solar cells

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Efficient and thermally stable inverted perovskite solar cells by introduction of non-fullerene electron transporting materials. / Heo, Jin Hyuck; Lee, Seung Chul; Jung, Su Kyo; Kwon, O. Pil; Im, Sang Hyuk.

In: Journal of Materials Chemistry A, Vol. 5, No. 39, 01.01.2017, p. 20615-20622.

Research output: Contribution to journalArticle

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AU - Im, Sang Hyuk

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