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Harnessing the topotactic transition in oxide heterostructures for fast and high-efficiency electrochromic applications

Mobile oxygen vacancies offer a substantial potential to broaden the range of optical functionalities of complex transition metal oxides due to their high mobility and the interplay with correlated electrons. Here, we report a large electro-absorptive optical variation induced by a topotactic transi...

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Autores principales: Lim, Ji Soo, Lee, Jounghee, Lee, Byeoung Ju, Kim, Yong-Jin, Park, Heung-Sik, Suh, Jeonghun, Nahm, Ho-Hyun, Kim, Sang-Woo, Cho, Byeong-Gwan, Koo, Tae Yeong, Choi, Eunjip, Kim, Yong-Hyun, Yang, Chan-Ho
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7546704/
https://www.ncbi.nlm.nih.gov/pubmed/33036971
http://dx.doi.org/10.1126/sciadv.abb8553
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author Lim, Ji Soo
Lee, Jounghee
Lee, Byeoung Ju
Kim, Yong-Jin
Park, Heung-Sik
Suh, Jeonghun
Nahm, Ho-Hyun
Kim, Sang-Woo
Cho, Byeong-Gwan
Koo, Tae Yeong
Choi, Eunjip
Kim, Yong-Hyun
Yang, Chan-Ho
author_facet Lim, Ji Soo
Lee, Jounghee
Lee, Byeoung Ju
Kim, Yong-Jin
Park, Heung-Sik
Suh, Jeonghun
Nahm, Ho-Hyun
Kim, Sang-Woo
Cho, Byeong-Gwan
Koo, Tae Yeong
Choi, Eunjip
Kim, Yong-Hyun
Yang, Chan-Ho
author_sort Lim, Ji Soo
collection PubMed
description Mobile oxygen vacancies offer a substantial potential to broaden the range of optical functionalities of complex transition metal oxides due to their high mobility and the interplay with correlated electrons. Here, we report a large electro-absorptive optical variation induced by a topotactic transition via oxygen vacancy fluidic motion in calcium ferrite with large-scale uniformity. The coloration efficiency reaches ~80 cm(2) C(−1), which means that a 300-nm-thick layer blocks 99% of transmitted visible light by the electrical switching. By tracking the color propagation, oxygen vacancy mobility can be estimated to be 10(−8) cm(2) s(−1) V(−1) near 300°C, which is a giant value attained due to the mosaic pseudomonoclinic film stabilized on LaAlO(3) substrate. First-principles calculations reveal that the defect density modulation associated with hole charge injection causes a prominent change in electron correlation, resulting in the light absorption modulation. Our findings will pave the pathway for practical topotactic electrochromic applications.
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spelling pubmed-75467042020-10-20 Harnessing the topotactic transition in oxide heterostructures for fast and high-efficiency electrochromic applications Lim, Ji Soo Lee, Jounghee Lee, Byeoung Ju Kim, Yong-Jin Park, Heung-Sik Suh, Jeonghun Nahm, Ho-Hyun Kim, Sang-Woo Cho, Byeong-Gwan Koo, Tae Yeong Choi, Eunjip Kim, Yong-Hyun Yang, Chan-Ho Sci Adv Research Articles Mobile oxygen vacancies offer a substantial potential to broaden the range of optical functionalities of complex transition metal oxides due to their high mobility and the interplay with correlated electrons. Here, we report a large electro-absorptive optical variation induced by a topotactic transition via oxygen vacancy fluidic motion in calcium ferrite with large-scale uniformity. The coloration efficiency reaches ~80 cm(2) C(−1), which means that a 300-nm-thick layer blocks 99% of transmitted visible light by the electrical switching. By tracking the color propagation, oxygen vacancy mobility can be estimated to be 10(−8) cm(2) s(−1) V(−1) near 300°C, which is a giant value attained due to the mosaic pseudomonoclinic film stabilized on LaAlO(3) substrate. First-principles calculations reveal that the defect density modulation associated with hole charge injection causes a prominent change in electron correlation, resulting in the light absorption modulation. Our findings will pave the pathway for practical topotactic electrochromic applications. American Association for the Advancement of Science 2020-10-09 /pmc/articles/PMC7546704/ /pubmed/33036971 http://dx.doi.org/10.1126/sciadv.abb8553 Text en Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/ https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Research Articles
Lim, Ji Soo
Lee, Jounghee
Lee, Byeoung Ju
Kim, Yong-Jin
Park, Heung-Sik
Suh, Jeonghun
Nahm, Ho-Hyun
Kim, Sang-Woo
Cho, Byeong-Gwan
Koo, Tae Yeong
Choi, Eunjip
Kim, Yong-Hyun
Yang, Chan-Ho
Harnessing the topotactic transition in oxide heterostructures for fast and high-efficiency electrochromic applications
title Harnessing the topotactic transition in oxide heterostructures for fast and high-efficiency electrochromic applications
title_full Harnessing the topotactic transition in oxide heterostructures for fast and high-efficiency electrochromic applications
title_fullStr Harnessing the topotactic transition in oxide heterostructures for fast and high-efficiency electrochromic applications
title_full_unstemmed Harnessing the topotactic transition in oxide heterostructures for fast and high-efficiency electrochromic applications
title_short Harnessing the topotactic transition in oxide heterostructures for fast and high-efficiency electrochromic applications
title_sort harnessing the topotactic transition in oxide heterostructures for fast and high-efficiency electrochromic applications
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7546704/
https://www.ncbi.nlm.nih.gov/pubmed/33036971
http://dx.doi.org/10.1126/sciadv.abb8553
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