Detail publikace

Coordination Chemistry Dictates the Structural Defects in Lead Halide Perovskites

Sara Rahimnejad, Alexander Kovalenko, Sergio Martí Forés, Clara Aranda, Antonio Guerrero

Originální název

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

We show the influence of species present in precursor solution during formation of lead halide perovskite materials on the structural defects of the films. The coordination of lead by competing solvent molecules and iodide ions will dictate the type of complexes present in the films. Depending on the processing conditions all PbIS₅+, PbI₂S₄, PbI₃S₃¯, PbI₄S₂²¯, PbI₅S₁³¯, PbI₆⁴¯and 1-D (Pb₂I₄)n chains are observed by absorption measurements. Different parameters are studied like polarity of the solvent, concentration of iodide ions, concentration of solvent molecules and temperature. It is concluded that strongly coordinating solvents will preferentially form species with a low number of iodide ions and less coordinative solvents generate high concentration of PbI6-. We furthermore propose that all these plumbate ions may act as structural defects determining electronic properties of the photovoltaic films.

Klíčová slova

perovskite, crystallization, solar cells

Autoři

Sara Rahimnejad, Alexander Kovalenko, Sergio Martí Forés, Clara Aranda, Antonio Guerrero

Vydáno

12. 7. 2016

Nakladatel

Wiley

Místo

USA

ISSN

1439-4235

Periodikum

CHEMPHYSCHEM

Ročník

Číslo

Stát

Spolková republika Německo

Strany od

2795

Strany do

2798

Strany počet

URL

http://onlinelibrary.wiley.com/doi/10.1002/cphc.201600575/abstract

BibTex

@article{BUT129002,
  author="Alexander {Kovalenko}",
  title="Coordination Chemistry Dictates the Structural Defects in Lead Halide Perovskites",
  journal="CHEMPHYSCHEM",
  year="2016",
  volume="17",
  number="18",
  pages="2795--2798",
  doi="10.1002/cphc.201600575",
  issn="1439-4235",
  url="http://onlinelibrary.wiley.com/doi/10.1002/cphc.201600575/abstract"
}