Shift Happens. How Halide Ion Defects Influence Photoinduced Segregation in Mixed Halide Perovskites
Тип публикации: Journal Article
Дата публикации: 2017-06-05
scimago Q1
wos Q1
БС1
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
Краткое описание
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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ГОСТ
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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.
ГОСТ со всеми авторами (до 50)
Скопировать
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.
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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 -
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BibTex (до 50 авторов)
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@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}
}
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MLA
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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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