KIP-Veröffentlichungen

 
Jahr 2015
Autor(en) Christian Müller, Tobias Glaser, Marcel Plogmeyer, Michael Sendner, Sebastian Döring, Artem A. Bakulin, Carlo Brzuska, Roland Scheer, Maxim S. Pshenichnikov, Wolfgang Kowalsky, Annemarie Pucci, and Robert Lovrincic
Titel Water Infiltration in Methylammonium Lead Iodide Perovskite: Fast and Inconspicuous
KIP-Nummer HD-KIP 15-83
KIP-Gruppe(n) F6
Dokumentart Paper
Quelle Chemistry of Materials 27 (2015) 7835–7841
doi 10.1021/acs.chemmater.5b03883
Abstract (en)

While the susceptibility of CH3NH3PbI3 to water is well documented, water influence on device performance is not well understood. Herein we use infrared spectroscopy to show that water infiltration into CH3NH3PbI3 occurs much faster and at much lower humidity than previously thought. We propose a molecular model where water molecules have a strong effect on the hydrogen bonding between the methyl­ammonium cations and the Pb-I cage. Furthermore, the exposure of CH3NH3PbI3 to ambient environment increases the photocurrent of films in lateral devices by more than one order of magnitude. The observed slow component in the photocurrent buildup indicates that the effect is associated with enhanced proton conduction when light is combined with water and oxygen exposure.

bibtex
@article{doi101021acschemmater5b03883,
  author   = {Christian M\"uller, Tobias Glaser, Marcel Plogmeyer, Michael Sendner, Sebastian D\"oring, Artem A. Bakulin, Carlo Brzuska, Roland Scheer, Maxim S. Pshenichnikov, Wolfgang Kowalsky, Annemarie Pucci, and Robert Lovrincic},
  title    = {Water Infiltration in Methylammonium Lead Iodide Perovskite: Fast and Inconspicuous},
  journal  = {Chemistry of Materials},
  year     = {2015},
  volume   = {27},
  pages    = {7835–7841}
}
zum Seitenanfang
KIP - Bibliothek
Im Neuenheimer Feld 227
Raum 3.402
69120 Heidelberg