Environmentally stable perovskite film for active material of high stability solid state solar cells

We studied new perovskite material lead (II) thiocyanate [Pb(SCN)2] in ambient air with humidity above 90%. We prepared perovskite film by use of two-step method combination of spin-coating and dip-coating technique. The Pb(SCN)2 film was first spin-coated either on bare glass or TiO2 coated glass a...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2018-05, Vol.1013 (1), p.12176
Main Authors: Bahtiar, A, Putri, M, Nurazizah, E S, Risdiana, Furukawa, Y
Format: Article
Language:English
Subjects:
Current carriers
Dip coatings
Humidity
Immersion coating
Lead
Morphology
Perovskites
Photovoltaic cells
Physics
Solar cells
Spin coating
Stability
Thiocyanates
Titanium dioxide
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We studied new perovskite material lead (II) thiocyanate [Pb(SCN)2] in ambient air with humidity above 90%. We prepared perovskite film by use of two-step method combination of spin-coating and dip-coating technique. The Pb(SCN)2 film was first spin-coated either on bare glass or TiO2 coated glass and then followed by dipping it into methylammonium iodide (MAI) solution. The UV-Vis spectrum of Pb(SCN)2 film shows absorption at wavelength shorter than 400 nm. Meanwhile, perovskite MAPb(SCN)xI3-x film absorps light ranging from 300 nm to 760 nm, which shows that the perovskite film can absorp more light to be converted into free charge carrier for generating electricity in solar cells. The XRD patterns shows that perovskite peaks are clearly observed which confirms that perovskite is already well formed. We also observe no significant changes in XRD pattern of perovskite films after stored for five days at ambient air with humidity exceed 90%. This result shows that perovskite MAPb(SCN)XI3-X film is environmentally stable, therefore high stability perovskite solar cells is expected to be produced in ambient air with high humidity. This is in accordance with the SEM images of surface morphology that shows no "pin-hole".
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1013/1/012176