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Detail publikace
Sara Rahimnejad, Alexander Kovalenko, Sergio Martí Forés, Clara Aranda, Antonio Guerrero
Originální název
Coordination Chemistry Dictates the Structural Defects in Lead Halide Perovskites
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
Vydáno
12. 7. 2016
Nakladatel
Wiley
Místo
USA
ISSN
1439-4235
Periodikum
CHEMPHYSCHEM
Ročník
17
Číslo
18
Stát
Spolková republika Německo
Strany od
2795
Strany do
2798
Strany počet
4
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" }