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All-optical THz wave switching based on CH(3)NH(3)PbI(3) perovskites

Hybrid structures of silicon with organic–inorganic perovskites are proposed for optically controllable switching of terahertz (THz) waves over a broad spectral range from 0.2 to 2THz. A 532-nm external laser was utilized to generate photoexcited free carriers at the devices and consequentially to c...

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Autores principales: Lee, Kyu-Sup, Kang, Rira, Son, Byungwoo, Kim, Dong-Yu, Yu, Nan Ei, Ko, Do-Kyeong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5121641/
https://www.ncbi.nlm.nih.gov/pubmed/27883067
http://dx.doi.org/10.1038/srep37912
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author Lee, Kyu-Sup
Kang, Rira
Son, Byungwoo
Kim, Dong-Yu
Yu, Nan Ei
Ko, Do-Kyeong
author_facet Lee, Kyu-Sup
Kang, Rira
Son, Byungwoo
Kim, Dong-Yu
Yu, Nan Ei
Ko, Do-Kyeong
author_sort Lee, Kyu-Sup
collection PubMed
description Hybrid structures of silicon with organic–inorganic perovskites are proposed for optically controllable switching of terahertz (THz) waves over a broad spectral range from 0.2 to 2THz. A 532-nm external laser was utilized to generate photoexcited free carriers at the devices and consequentially to control the terahertz amplitude modulation, obtaining a depth of up to 68% at a laser irradiance of 1.5 W/cm(2). In addition, we compared the performances from three types of perovskite devices fabricated via different solution processing methods and suggested a stable and highly efficient THz switch based on a one-step processing. By this we demonstrated the possibility of perovskites as THz wave switching devices in addition to photovoltaics.
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spelling pubmed-51216412016-11-28 All-optical THz wave switching based on CH(3)NH(3)PbI(3) perovskites Lee, Kyu-Sup Kang, Rira Son, Byungwoo Kim, Dong-Yu Yu, Nan Ei Ko, Do-Kyeong Sci Rep Article Hybrid structures of silicon with organic–inorganic perovskites are proposed for optically controllable switching of terahertz (THz) waves over a broad spectral range from 0.2 to 2THz. A 532-nm external laser was utilized to generate photoexcited free carriers at the devices and consequentially to control the terahertz amplitude modulation, obtaining a depth of up to 68% at a laser irradiance of 1.5 W/cm(2). In addition, we compared the performances from three types of perovskite devices fabricated via different solution processing methods and suggested a stable and highly efficient THz switch based on a one-step processing. By this we demonstrated the possibility of perovskites as THz wave switching devices in addition to photovoltaics. Nature Publishing Group 2016-11-24 /pmc/articles/PMC5121641/ /pubmed/27883067 http://dx.doi.org/10.1038/srep37912 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Lee, Kyu-Sup
Kang, Rira
Son, Byungwoo
Kim, Dong-Yu
Yu, Nan Ei
Ko, Do-Kyeong
All-optical THz wave switching based on CH(3)NH(3)PbI(3) perovskites
title All-optical THz wave switching based on CH(3)NH(3)PbI(3) perovskites
title_full All-optical THz wave switching based on CH(3)NH(3)PbI(3) perovskites
title_fullStr All-optical THz wave switching based on CH(3)NH(3)PbI(3) perovskites
title_full_unstemmed All-optical THz wave switching based on CH(3)NH(3)PbI(3) perovskites
title_short All-optical THz wave switching based on CH(3)NH(3)PbI(3) perovskites
title_sort all-optical thz wave switching based on ch(3)nh(3)pbi(3) perovskites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5121641/
https://www.ncbi.nlm.nih.gov/pubmed/27883067
http://dx.doi.org/10.1038/srep37912
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