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Title: Oxidation states in perovskite layers formed using various deposition techniques

Abstract

Organic–inorganic halide perovskites have quickly become emerging materials for photovoltaic applications, but a major factor causing instability in perovskite solar cells could be the elemental shift due to oxygen. The present work demonstrates the oxidation states of perovskite layers formed by (i) one-step deposition, (ii) solvent-to-solvent extraction, (iii) hot casting, and (iv) mixed-cation solution processing. X-ray photoelectron spectroscopy is used to explore the compositional changes due to oxygen, and the spectra confirm the diffusion of oxygen in the perovskite layer. Mixed-cation perovskites show the most promising results among the four deposition techniques. The best photovoltaic performance is achieved by an SnO 2-based mixed-cation perovskite solar cell with a power conversion efficiency of 18.75%. A power conversion efficiency of 16.74% is obtained by a TiO 2-based mixed-cation perovskite solar cell when the optimum thickness of the TiO 2 blocking layer is 60–65 nm.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1];  [1];  [1];  [2]; ORCiD logo [3];  [1]
  1. Univ. of Texas at El Paso, TX (United States)
  2. Univ. of Oxford (United Kingdom)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1597257
Report Number(s):
BNL-213600-2020-JAAM
Journal ID: ISSN 1941-7012
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Renewable and Sustainable Energy
Additional Journal Information:
Journal Volume: 11; Journal Issue: 5; Journal ID: ISSN 1941-7012
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Shahriar, Shaimum, Castaneda, Vanessa, Martinez, Manuel, Mishra, Aditya Kumar, Akter, Tahmina, Schutt, Kelly, Boscoboinik, J. Anibal, and Hodges, Deidra. Oxidation states in perovskite layers formed using various deposition techniques. United States: N. p., 2019. Web. doi:10.1063/1.5108656.
Shahriar, Shaimum, Castaneda, Vanessa, Martinez, Manuel, Mishra, Aditya Kumar, Akter, Tahmina, Schutt, Kelly, Boscoboinik, J. Anibal, & Hodges, Deidra. Oxidation states in perovskite layers formed using various deposition techniques. United States. doi:10.1063/1.5108656.
Shahriar, Shaimum, Castaneda, Vanessa, Martinez, Manuel, Mishra, Aditya Kumar, Akter, Tahmina, Schutt, Kelly, Boscoboinik, J. Anibal, and Hodges, Deidra. Mon . "Oxidation states in perovskite layers formed using various deposition techniques". United States. doi:10.1063/1.5108656.
@article{osti_1597257,
title = {Oxidation states in perovskite layers formed using various deposition techniques},
author = {Shahriar, Shaimum and Castaneda, Vanessa and Martinez, Manuel and Mishra, Aditya Kumar and Akter, Tahmina and Schutt, Kelly and Boscoboinik, J. Anibal and Hodges, Deidra},
abstractNote = {Organic–inorganic halide perovskites have quickly become emerging materials for photovoltaic applications, but a major factor causing instability in perovskite solar cells could be the elemental shift due to oxygen. The present work demonstrates the oxidation states of perovskite layers formed by (i) one-step deposition, (ii) solvent-to-solvent extraction, (iii) hot casting, and (iv) mixed-cation solution processing. X-ray photoelectron spectroscopy is used to explore the compositional changes due to oxygen, and the spectra confirm the diffusion of oxygen in the perovskite layer. Mixed-cation perovskites show the most promising results among the four deposition techniques. The best photovoltaic performance is achieved by an SnO2-based mixed-cation perovskite solar cell with a power conversion efficiency of 18.75%. A power conversion efficiency of 16.74% is obtained by a TiO2-based mixed-cation perovskite solar cell when the optimum thickness of the TiO2 blocking layer is 60–65 nm.},
doi = {10.1063/1.5108656},
journal = {Journal of Renewable and Sustainable Energy},
number = 5,
volume = 11,
place = {United States},
year = {2019},
month = {10}
}

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