Shift Happens. How Halide Ion Defects Influence Photoinduced Segregation in Mixed Halide Perovskites
Publication type: Journal Article
Publication date: 2017-06-05
scimago Q1
wos Q1
SJR: 6.799
CiteScore: 29.6
Impact factor: 18.2
ISSN: 23808195
Materials Chemistry
Chemistry (miscellaneous)
Energy Engineering and Power Technology
Fuel Technology
Renewable Energy, Sustainability and the Environment
Abstract
Minimizing photoinduced segregation in mixed halide lead perovskites is important for achieving stable photovoltaic performance. The shift in the absorption and the rate of formation of iodide- and bromide-rich regions following visible excitation of mixed halide lead perovskites is found to strongly depend on the halide ion concentration. Slower formation and recovery rates observed in halide-deficient films indicate the involvement of defect sites in influencing halide phase segregation. At higher halide concentrations (in stoichiometric excess), segregation effects become less prominent, as evidenced by faster recovery kinetics. These results suggest that light-induced compositional segregation can be minimized in mixed halide perovskite films by using excess halide ions. The findings from this study further reflect the importance of halide ion post-treatment of perovskite films to improve their solar cell performance.
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341
Total citations:
341
Citations from 2024:
76
(22%)
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GOST
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Yoon S. et al. Shift Happens. How Halide Ion Defects Influence Photoinduced Segregation in Mixed Halide Perovskites // ACS Energy Letters. 2017. Vol. 2. No. 7. pp. 1507-1514.
GOST all authors (up to 50)
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Yoon S., Kuno M., Kamat P. V. Shift Happens. How Halide Ion Defects Influence Photoinduced Segregation in Mixed Halide Perovskites // ACS Energy Letters. 2017. Vol. 2. No. 7. pp. 1507-1514.
Cite this
RIS
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TY - JOUR
DO - 10.1021/acsenergylett.7b00357
UR - https://doi.org/10.1021/acsenergylett.7b00357
TI - Shift Happens. How Halide Ion Defects Influence Photoinduced Segregation in Mixed Halide Perovskites
T2 - ACS Energy Letters
AU - Yoon, Seogjoon
AU - Kuno, Masaru
AU - Kamat, Prashant V
PY - 2017
DA - 2017/06/05
PB - American Chemical Society (ACS)
SP - 1507-1514
IS - 7
VL - 2
SN - 2380-8195
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2017_Yoon,
author = {Seogjoon Yoon and Masaru Kuno and Prashant V Kamat},
title = {Shift Happens. How Halide Ion Defects Influence Photoinduced Segregation in Mixed Halide Perovskites},
journal = {ACS Energy Letters},
year = {2017},
volume = {2},
publisher = {American Chemical Society (ACS)},
month = {jun},
url = {https://doi.org/10.1021/acsenergylett.7b00357},
number = {7},
pages = {1507--1514},
doi = {10.1021/acsenergylett.7b00357}
}
Cite this
MLA
Copy
Yoon, Seogjoon, et al. “Shift Happens. How Halide Ion Defects Influence Photoinduced Segregation in Mixed Halide Perovskites.” ACS Energy Letters, vol. 2, no. 7, Jun. 2017, pp. 1507-1514. https://doi.org/10.1021/acsenergylett.7b00357.
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