Null current hysteresis for acetylacetonate electron extraction layer in perovskite solar cells

Abd Rashid Bin Mohd Yusoff, Mohd Asri Mat Teridi, Jin Jang

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Solution processed zirconium acetylacetonate (Zr(acac)) is successfully employed as an electron extraction layer, replacing conventional titanium oxide, in planar CH3NH3PbI3 perovskite solar cells. The as-prepared Zr(acac) film possesses high transparency, high conductivity, a smooth morphology, high wettability, compatibility with PbI2 DMF solution, and an energy level matching that of CH3NH3PbI3 perovskite material. An average power conversion efficiency of about 11.93%, along with a high fill factor of 74.36%, an open circuit voltage of 1.03 V, and a short-circuit current density of 15.58 mA cm-2 is achieved. The overall performance of the devices is slight better than that of cells using ruthenium acetylacetonate (Ru(acac)). The differences between solar cells with different electron extraction layers in charge recombination, charge transport and transfer and lifetime are further explored and it is demonstrate that Zr(acac) is a more effective and promising electron extraction layer. This work provides a simple, and cost effective route for the preparation of an effective hole extraction layer.

Original languageEnglish
Pages (from-to)6328-6334
Number of pages7
JournalNanoscale
Volume8
Issue number12
DOIs
Publication statusPublished - 28 Mar 2016

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Hysteresis
Zirconium
Electrons
Charge transfer
Ruthenium
Titanium oxides
Open circuit voltage
Short circuit currents
Perovskite
Transparency
Electron energy levels
Conversion efficiency
Wetting
Solar cells
Current density
Perovskite solar cells
acetyl acetonate
Costs

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Null current hysteresis for acetylacetonate electron extraction layer in perovskite solar cells. / Mohd Yusoff, Abd Rashid Bin; Mat Teridi, Mohd Asri; Jang, Jin.

In: Nanoscale, Vol. 8, No. 12, 28.03.2016, p. 6328-6334.

Research output: Contribution to journalArticle

Mohd Yusoff, Abd Rashid Bin ; Mat Teridi, Mohd Asri ; Jang, Jin. / Null current hysteresis for acetylacetonate electron extraction layer in perovskite solar cells. In: Nanoscale. 2016 ; Vol. 8, No. 12. pp. 6328-6334.
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