Thermally Activated Second-Order Recombination Hints toward Indirect Recombination in Fully Inorganic CsPbI(3) Perovskites

[Image: see text] The relationship between the dipole moment of the methylammonium cation and the optoelectronic properties of lead halide perovskites remains under debate. We show that both the temperature-dependent charge carrier mobility and recombination kinetics are identical for methylammonium...

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Autores principales: Hutter, Eline M., Savenije, Tom J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6142047/
https://www.ncbi.nlm.nih.gov/pubmed/30246147
http://dx.doi.org/10.1021/acsenergylett.8b01106
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author Hutter, Eline M.
Savenije, Tom J.
author_facet Hutter, Eline M.
Savenije, Tom J.
author_sort Hutter, Eline M.
collection PubMed
description [Image: see text] The relationship between the dipole moment of the methylammonium cation and the optoelectronic properties of lead halide perovskites remains under debate. We show that both the temperature-dependent charge carrier mobility and recombination kinetics are identical for methylammonium and cesium lead iodide, indicating that the role of the monovalent cation is subordinate to the lead iodide framework. From the observation that for both perovskites the electron–hole recombination is thermally activated, we speculate that the bandgap is slightly indirect.
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spelling pubmed-61420472018-09-20 Thermally Activated Second-Order Recombination Hints toward Indirect Recombination in Fully Inorganic CsPbI(3) Perovskites Hutter, Eline M. Savenije, Tom J. ACS Energy Lett [Image: see text] The relationship between the dipole moment of the methylammonium cation and the optoelectronic properties of lead halide perovskites remains under debate. We show that both the temperature-dependent charge carrier mobility and recombination kinetics are identical for methylammonium and cesium lead iodide, indicating that the role of the monovalent cation is subordinate to the lead iodide framework. From the observation that for both perovskites the electron–hole recombination is thermally activated, we speculate that the bandgap is slightly indirect. American Chemical Society 2018-07-18 2018-09-14 /pmc/articles/PMC6142047/ /pubmed/30246147 http://dx.doi.org/10.1021/acsenergylett.8b01106 Text en Copyright © 2018 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes.
spellingShingle Hutter, Eline M.
Savenije, Tom J.
Thermally Activated Second-Order Recombination Hints toward Indirect Recombination in Fully Inorganic CsPbI(3) Perovskites
title Thermally Activated Second-Order Recombination Hints toward Indirect Recombination in Fully Inorganic CsPbI(3) Perovskites
title_full Thermally Activated Second-Order Recombination Hints toward Indirect Recombination in Fully Inorganic CsPbI(3) Perovskites
title_fullStr Thermally Activated Second-Order Recombination Hints toward Indirect Recombination in Fully Inorganic CsPbI(3) Perovskites
title_full_unstemmed Thermally Activated Second-Order Recombination Hints toward Indirect Recombination in Fully Inorganic CsPbI(3) Perovskites
title_short Thermally Activated Second-Order Recombination Hints toward Indirect Recombination in Fully Inorganic CsPbI(3) Perovskites
title_sort thermally activated second-order recombination hints toward indirect recombination in fully inorganic cspbi(3) perovskites
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6142047/
https://www.ncbi.nlm.nih.gov/pubmed/30246147
http://dx.doi.org/10.1021/acsenergylett.8b01106
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