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Direct Laser Writing of δ- to α-Phase Transformation in Formamidinium Lead Iodide
[Image: see text] Organolead halide perovskites are increasingly considered for applications well beyond photovoltaics, for example, as the active regions within photonic devices. Herein, we report the direct laser writing (DLW: 458 nm cw-laser) of the formamidinium lead iodide (FAPbI(3)) yellow δ-p...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American
Chemical Society
2017
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5595358/ https://www.ncbi.nlm.nih.gov/pubmed/28763617 http://dx.doi.org/10.1021/acsnano.7b02777 |
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author | Steele, Julian A. Yuan, Haifeng Tan, Collin Y. X. Keshavarz, Masoumeh Steuwe, Christian Roeffaers, Maarten B. J. Hofkens, Johan |
author_facet | Steele, Julian A. Yuan, Haifeng Tan, Collin Y. X. Keshavarz, Masoumeh Steuwe, Christian Roeffaers, Maarten B. J. Hofkens, Johan |
author_sort | Steele, Julian A. |
collection | PubMed |
description | [Image: see text] Organolead halide perovskites are increasingly considered for applications well beyond photovoltaics, for example, as the active regions within photonic devices. Herein, we report the direct laser writing (DLW: 458 nm cw-laser) of the formamidinium lead iodide (FAPbI(3)) yellow δ-phase into its high-temperature luminescent black α-phase, a remarkably easy and scalable approach that takes advantage of the material’s susceptibility to transition under ambient conditions. Through the DLW of α-FAPbI(3) tracks on δ-FAPbI(3) single-crystal surfaces, the controlled and rapid microfabrication of highly luminescent structures exhibiting long-term phase stability is detailed, offering an avenue toward the prototyping of complex perovskite-based optical devices. The dynamics and kinetics of laser-induced δ- to α-phase transformations are investigated in situ by Raman microprobe analysis, as a function of irradiation power, time, temperature, and atmospheric conditions, revealing an interesting connection between oxygen intercalation at the surface and the δ- to α-phase transformation dynamics, an insight that will find application within the wider context of FAPbI(3) thermal phase relations. |
format | Online Article Text |
id | pubmed-5595358 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | American
Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-55953582017-09-14 Direct Laser Writing of δ- to α-Phase Transformation in Formamidinium Lead Iodide Steele, Julian A. Yuan, Haifeng Tan, Collin Y. X. Keshavarz, Masoumeh Steuwe, Christian Roeffaers, Maarten B. J. Hofkens, Johan ACS Nano [Image: see text] Organolead halide perovskites are increasingly considered for applications well beyond photovoltaics, for example, as the active regions within photonic devices. Herein, we report the direct laser writing (DLW: 458 nm cw-laser) of the formamidinium lead iodide (FAPbI(3)) yellow δ-phase into its high-temperature luminescent black α-phase, a remarkably easy and scalable approach that takes advantage of the material’s susceptibility to transition under ambient conditions. Through the DLW of α-FAPbI(3) tracks on δ-FAPbI(3) single-crystal surfaces, the controlled and rapid microfabrication of highly luminescent structures exhibiting long-term phase stability is detailed, offering an avenue toward the prototyping of complex perovskite-based optical devices. The dynamics and kinetics of laser-induced δ- to α-phase transformations are investigated in situ by Raman microprobe analysis, as a function of irradiation power, time, temperature, and atmospheric conditions, revealing an interesting connection between oxygen intercalation at the surface and the δ- to α-phase transformation dynamics, an insight that will find application within the wider context of FAPbI(3) thermal phase relations. American Chemical Society 2017-08-01 2017-08-22 /pmc/articles/PMC5595358/ /pubmed/28763617 http://dx.doi.org/10.1021/acsnano.7b02777 Text en Copyright © 2017 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Steele, Julian A. Yuan, Haifeng Tan, Collin Y. X. Keshavarz, Masoumeh Steuwe, Christian Roeffaers, Maarten B. J. Hofkens, Johan Direct Laser Writing of δ- to α-Phase Transformation in Formamidinium Lead Iodide |
title | Direct Laser Writing of δ-
to α-Phase
Transformation in Formamidinium Lead Iodide |
title_full | Direct Laser Writing of δ-
to α-Phase
Transformation in Formamidinium Lead Iodide |
title_fullStr | Direct Laser Writing of δ-
to α-Phase
Transformation in Formamidinium Lead Iodide |
title_full_unstemmed | Direct Laser Writing of δ-
to α-Phase
Transformation in Formamidinium Lead Iodide |
title_short | Direct Laser Writing of δ-
to α-Phase
Transformation in Formamidinium Lead Iodide |
title_sort | direct laser writing of δ-
to α-phase
transformation in formamidinium lead iodide |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5595358/ https://www.ncbi.nlm.nih.gov/pubmed/28763617 http://dx.doi.org/10.1021/acsnano.7b02777 |
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