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Title: Divalent Anionic Doping in Perovskite Solar Cells for Enhanced Chemical Stability

Abstract

The chemical stabilities of hybrid perovskite materials demand further improvement toward long-term and large-scale photovoltaic applications. Herein, the enhanced chemical stability of CH 3NH 3PbI 3 is reported by doping the divalent anion Se 2- in the form of PbSe in precursor solutions to enhance the hydrogen-bonding-like interactions between the organic cations and the inorganic framework. As a result, in 100% humidity at 40 degrees C, the 10% w/w PbSe-doped CH 3NH 3PbI 3 films exhibited >140-fold stability improvement over pristine CH 3NH 3PbI 3 films. As the PbSe-doped CH 3NH 3PbI 3 films maintained the perovskite structure, a top efficiency of 10.4% with 70% retention after 700 h aging in ambient air is achieved with an unencapsulated 10% w/w PbSe:MAPbI 3-based cell. As a bonus, the incorporated Se 2- also effectively suppresses iodine diffusion, leading to enhanced chemical stability of the silver electrodes.

Authors:
 [1];  [2];  [1];  [1];  [1];  [2]; ORCiD logo [1]
  1. Northern Illinois Univ., DeKalb, IL (United States)
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
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:
1461855
Alternate Identifier(s):
OSTI ID: 1459460
Report Number(s):
NREL/JA-5900-71096
Journal ID: ISSN 0935-9648
Grant/Contract Number:  
AC36-08GO28308; AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Advanced Materials
Additional Journal Information:
Journal Volume: 30; Journal Issue: 34; Journal ID: ISSN 0935-9648
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; chemical doping; iodine diffusion; moisture stability; perovskite solar cells

Citation Formats

Gong, Jue, Yang, Mengjin, Rebollar, Dominic, Rucinski, Jordan, Liveris, Zachary, Zhu, Kai, and Xu, Tao. Divalent Anionic Doping in Perovskite Solar Cells for Enhanced Chemical Stability. United States: N. p., 2018. Web. doi:10.1002/adma.201800973.
Gong, Jue, Yang, Mengjin, Rebollar, Dominic, Rucinski, Jordan, Liveris, Zachary, Zhu, Kai, & Xu, Tao. Divalent Anionic Doping in Perovskite Solar Cells for Enhanced Chemical Stability. United States. doi:10.1002/adma.201800973.
Gong, Jue, Yang, Mengjin, Rebollar, Dominic, Rucinski, Jordan, Liveris, Zachary, Zhu, Kai, and Xu, Tao. Sun . "Divalent Anionic Doping in Perovskite Solar Cells for Enhanced Chemical Stability". United States. doi:10.1002/adma.201800973.
@article{osti_1461855,
title = {Divalent Anionic Doping in Perovskite Solar Cells for Enhanced Chemical Stability},
author = {Gong, Jue and Yang, Mengjin and Rebollar, Dominic and Rucinski, Jordan and Liveris, Zachary and Zhu, Kai and Xu, Tao},
abstractNote = {The chemical stabilities of hybrid perovskite materials demand further improvement toward long-term and large-scale photovoltaic applications. Herein, the enhanced chemical stability of CH3NH3PbI3 is reported by doping the divalent anion Se2- in the form of PbSe in precursor solutions to enhance the hydrogen-bonding-like interactions between the organic cations and the inorganic framework. As a result, in 100% humidity at 40 degrees C, the 10% w/w PbSe-doped CH3NH3PbI3 films exhibited >140-fold stability improvement over pristine CH3NH3PbI3 films. As the PbSe-doped CH3NH3PbI3 films maintained the perovskite structure, a top efficiency of 10.4% with 70% retention after 700 h aging in ambient air is achieved with an unencapsulated 10% w/w PbSe:MAPbI3-based cell. As a bonus, the incorporated Se2- also effectively suppresses iodine diffusion, leading to enhanced chemical stability of the silver electrodes.},
doi = {10.1002/adma.201800973},
journal = {Advanced Materials},
number = 34,
volume = 30,
place = {United States},
year = {Sun Jul 08 00:00:00 EDT 2018},
month = {Sun Jul 08 00:00:00 EDT 2018}
}

Journal Article:
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Works referenced in this record:

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