Lead acetate film as precursor for two-step deposition of CH3NH3PbI3

Lead acetate film as precursor for two-step deposition of CH3NH3PbI3

Publication Type:

Journal Article

Source:

Materials Research Bulletin, Volume 89, p.89-96 (2017)

ISBN:

0025-5408

Abstract:

<p>This paper relates to a method for the preparation of lead acetate film and its use as precursor for twostep solution deposition of CH3NH3PbI3 perovskite film. For the preparation of perovskite film, lead acetate was used both in the form of trihydrate and dehydrated. The effects of lead acetate trihydrate dehydration on the structure of the resulted perovskite films were studied. The prepared perovskite films which consist of cuboid grains, show high surface coverage both on FTO and TiO2 substrates. XRD measurements have not revealed the presence of the PbI2 contaminant in perovskite film. Solvent vapor annealing method was employed to prepare perovskite film that contains lead iodide. Using impedance spectroscopy measurements, we further evaluated the influence of the prepared perovskite films on the performance of the photovoltaic devices. (C) 2017 Elsevier Ltd. All rights reserved.</p>