Liquid Water- and Heat-Resistant Hybrid Perovskite Photovoltaics via an Inverted ALD Oxide Electron Extraction Layer Design

In Soo Kim, Duyen H. Cao, D. Bruce Buchholz, Jonathan D. Emery, Omar K. Farha, Joseph T Hupp, Mercouri G Kanatzidis, Alex B F Martinson

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Despite rapid advances in conversion efficiency (>22%), the environmental stability of perovskite solar cells remains a substantial barrier to commercialization. Here, we show a significant improvement in the stability of inverted perovskite solar cells against liquid water and high operating temperature (100 °C) by integrating an ultrathin amorphous oxide electron extraction layer via atomic layer deposition (ALD). These unencapsulated inverted devices exhibit a stable operation over at least 10 h when subjected to high thermal stress (100 °C) in ambient environments, as well as upon direct contact with a droplet of water without further encapsulation.

Original languageEnglish
Pages (from-to)7786-7790
Number of pages5
JournalNano Letters
Volume16
Issue number12
DOIs
Publication statusPublished - Dec 14 2016

Fingerprint

Atomic layer deposition
atomic layer epitaxy
Perovskite
Oxides
solar cells
heat
commercialization
oxides
Electrons
Water
Liquids
liquids
thermal stresses
operating temperature
Encapsulation
Thermal stress
Contacts (fluid mechanics)
water
Conversion efficiency
electrons

Keywords

  • atomic layer deposition
  • Hybrid perovskites
  • inverted design
  • photovoltaics
  • stability

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Liquid Water- and Heat-Resistant Hybrid Perovskite Photovoltaics via an Inverted ALD Oxide Electron Extraction Layer Design. / Kim, In Soo; Cao, Duyen H.; Buchholz, D. Bruce; Emery, Jonathan D.; Farha, Omar K.; Hupp, Joseph T; Kanatzidis, Mercouri G; Martinson, Alex B F.

In: Nano Letters, Vol. 16, No. 12, 14.12.2016, p. 7786-7790.

Research output: Contribution to journalArticle

Kim, In Soo ; Cao, Duyen H. ; Buchholz, D. Bruce ; Emery, Jonathan D. ; Farha, Omar K. ; Hupp, Joseph T ; Kanatzidis, Mercouri G ; Martinson, Alex B F. / Liquid Water- and Heat-Resistant Hybrid Perovskite Photovoltaics via an Inverted ALD Oxide Electron Extraction Layer Design. In: Nano Letters. 2016 ; Vol. 16, No. 12. pp. 7786-7790.
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