skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Influence of Electrode Interfaces on the Stability of Perovskite Solar Cells: Reduced Degradation Using MoO x/Al for Hole Collection

Abstract

We investigated and characterized the stability of the power output from methylammonium lead iodide perovskite photovoltaic devices produced with various hole-collecting anode configurations consisting of Au, Ag, MoOx/Au, MoOx/Ag, and MoOx/Al. The unencapsulated devices were operated under constant illumination and constant load conditions in laboratory ambient with periodic current-voltage testing. Although the initial efficiencies of devices were comparable across these configurations, the stability of these devices varied significantly due to subtle differences in the electrode structure. Specifically, we found that devices with MoOx/Al electrodes are more stable than devices with more conventional, and more costly, Au and Ag electrodes. We demonstrate that a thin MoOx layer inhibits decomposition of the perovskite films under illumination in ambient laboratory conditions and greater improvements in device stability are achieved specifically with MoOx/Al electrodes. We investigated the role of the MoOx interlayer in the MoOx/Al electrodes by exploring the effect of relative humidity and the MoOx interlayer thickness on the perovskite solar cell stability.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
OSTI Identifier:
1265057
Report Number(s):
NREL/JA-5900-65342
Journal ID: ISSN 2380-8195
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Journal Article
Journal Name:
ACS Energy Letters
Additional Journal Information:
Journal Volume: 1; Journal Issue: 1; Journal ID: ISSN 2380-8195
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; perovskite solar cells

Citation Formats

Sanehira, Erin M., Tremolet de Villers, Bertrand J., Schulz, Philip, Reese, Matthew O., Ferrere, Suzanne, Zhu, Kai, Lin, Lih Y., Berry, Joseph J., and Luther, Joseph M. Influence of Electrode Interfaces on the Stability of Perovskite Solar Cells: Reduced Degradation Using MoOx/Al for Hole Collection. United States: N. p., 2016. Web. doi:10.1021/acsenergylett.6b00013.
Sanehira, Erin M., Tremolet de Villers, Bertrand J., Schulz, Philip, Reese, Matthew O., Ferrere, Suzanne, Zhu, Kai, Lin, Lih Y., Berry, Joseph J., & Luther, Joseph M. Influence of Electrode Interfaces on the Stability of Perovskite Solar Cells: Reduced Degradation Using MoOx/Al for Hole Collection. United States. doi:10.1021/acsenergylett.6b00013.
Sanehira, Erin M., Tremolet de Villers, Bertrand J., Schulz, Philip, Reese, Matthew O., Ferrere, Suzanne, Zhu, Kai, Lin, Lih Y., Berry, Joseph J., and Luther, Joseph M. Fri . "Influence of Electrode Interfaces on the Stability of Perovskite Solar Cells: Reduced Degradation Using MoOx/Al for Hole Collection". United States. doi:10.1021/acsenergylett.6b00013.
@article{osti_1265057,
title = {Influence of Electrode Interfaces on the Stability of Perovskite Solar Cells: Reduced Degradation Using MoOx/Al for Hole Collection},
author = {Sanehira, Erin M. and Tremolet de Villers, Bertrand J. and Schulz, Philip and Reese, Matthew O. and Ferrere, Suzanne and Zhu, Kai and Lin, Lih Y. and Berry, Joseph J. and Luther, Joseph M.},
abstractNote = {We investigated and characterized the stability of the power output from methylammonium lead iodide perovskite photovoltaic devices produced with various hole-collecting anode configurations consisting of Au, Ag, MoOx/Au, MoOx/Ag, and MoOx/Al. The unencapsulated devices were operated under constant illumination and constant load conditions in laboratory ambient with periodic current-voltage testing. Although the initial efficiencies of devices were comparable across these configurations, the stability of these devices varied significantly due to subtle differences in the electrode structure. Specifically, we found that devices with MoOx/Al electrodes are more stable than devices with more conventional, and more costly, Au and Ag electrodes. We demonstrate that a thin MoOx layer inhibits decomposition of the perovskite films under illumination in ambient laboratory conditions and greater improvements in device stability are achieved specifically with MoOx/Al electrodes. We investigated the role of the MoOx interlayer in the MoOx/Al electrodes by exploring the effect of relative humidity and the MoOx interlayer thickness on the perovskite solar cell stability.},
doi = {10.1021/acsenergylett.6b00013},
journal = {ACS Energy Letters},
issn = {2380-8195},
number = 1,
volume = 1,
place = {United States},
year = {2016},
month = {7}
}