Development of Photofunctional Devices Based on Organic–Inorganic Hybrid Structures

In this research, organic–inorganic hybrid materials that enable the detection and manipulation of “invisible light” such as weak light, polarized light, and near-infrared (NIR) light are prepared and optoelectronic devices based on these materials are developed. The photoelectric conversion or ener...

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Autor principal:	Ayumi ISHII
Formato:	article
Lenguaje:	EN JA
Publicado:	The Electrochemical Society of Japan 2021
Materias:	organic-inorganic hybrid photofunctional materials interface energy transfer Technology T Physical and theoretical chemistry QD450-801
Acceso en línea:	https://doaj.org/article/41f2c50162024313a64f7ab390a9c645
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spelling	oai:doaj.org-article:41f2c50162024313a64f7ab390a9c6452021-11-05T00:17:27ZDevelopment of Photofunctional Devices Based on Organic–Inorganic Hybrid Structures2186-245110.5796/electrochemistry.21-00090https://doaj.org/article/41f2c50162024313a64f7ab390a9c6452021-11-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/electrochemistry/89/6/89_21-00090/_html/-char/enhttps://doaj.org/toc/2186-2451In this research, organic–inorganic hybrid materials that enable the detection and manipulation of “invisible light” such as weak light, polarized light, and near-infrared (NIR) light are prepared and optoelectronic devices based on these materials are developed. The photoelectric conversion or energy transfer process resulting from light absorption is precisely controlled at the heterointerface of organic–inorganic hybrid structures, which enables the highly efficient amplification, conversion, and detection of invisible light under normal temperatures and pressures. Here, novel optical functions and devices based on organic–inorganic hybrid structures and interfaces are presented. For instance, in a hybrid structure in which organic molecules and inorganic semiconductors are chemically bonded, photocurrent was amplified more than 2000-fold at their heterointerface, resulting in highly sensitive photodetection at a low voltage (<1 V). As a novel device structure for the direct detection of circularly polarized light with high sensitivity, an inorganic crystal thin film with a one-dimensional helical structure was fabricated via interaction with organic chiral molecules. For NIR light, dye-sensitized up-conversion nanoparticles that can convert NIR light as weak as sunlight into visible light with high efficiency were developed and incorporated into a perovskite-based visible-light detector. This device detected light in the NIR region through energy conversion from NIR to visible light. And also, NIR light was promoted as ultra-bright luminescence by one-photon absorption two-photon emission (quantum-cutting) process in heterometal hybridized crystal thin films. The light-emitting diode was fabricated and demonstrated 6 % external conversion efficiency of field emission in the NIR region.Ayumi ISHIIThe Electrochemical Society of Japanarticleorganic-inorganic hybridphotofunctional materialsinterfaceenergy transferTechnologyTPhysical and theoretical chemistryQD450-801ENJAElectrochemistry, Vol 89, Iss 6, Pp 544-551 (2021)
institution	DOAJ
collection	DOAJ
language	EN JA
topic	organic-inorganic hybrid photofunctional materials interface energy transfer Technology T Physical and theoretical chemistry QD450-801
spellingShingle	organic-inorganic hybrid photofunctional materials interface energy transfer Technology T Physical and theoretical chemistry QD450-801 Ayumi ISHII Development of Photofunctional Devices Based on Organic–Inorganic Hybrid Structures
description	In this research, organic–inorganic hybrid materials that enable the detection and manipulation of “invisible light” such as weak light, polarized light, and near-infrared (NIR) light are prepared and optoelectronic devices based on these materials are developed. The photoelectric conversion or energy transfer process resulting from light absorption is precisely controlled at the heterointerface of organic–inorganic hybrid structures, which enables the highly efficient amplification, conversion, and detection of invisible light under normal temperatures and pressures. Here, novel optical functions and devices based on organic–inorganic hybrid structures and interfaces are presented. For instance, in a hybrid structure in which organic molecules and inorganic semiconductors are chemically bonded, photocurrent was amplified more than 2000-fold at their heterointerface, resulting in highly sensitive photodetection at a low voltage (<1 V). As a novel device structure for the direct detection of circularly polarized light with high sensitivity, an inorganic crystal thin film with a one-dimensional helical structure was fabricated via interaction with organic chiral molecules. For NIR light, dye-sensitized up-conversion nanoparticles that can convert NIR light as weak as sunlight into visible light with high efficiency were developed and incorporated into a perovskite-based visible-light detector. This device detected light in the NIR region through energy conversion from NIR to visible light. And also, NIR light was promoted as ultra-bright luminescence by one-photon absorption two-photon emission (quantum-cutting) process in heterometal hybridized crystal thin films. The light-emitting diode was fabricated and demonstrated 6 % external conversion efficiency of field emission in the NIR region.
format	article
author	Ayumi ISHII
author_facet	Ayumi ISHII
author_sort	Ayumi ISHII
title	Development of Photofunctional Devices Based on Organic–Inorganic Hybrid Structures
title_short	Development of Photofunctional Devices Based on Organic–Inorganic Hybrid Structures
title_full	Development of Photofunctional Devices Based on Organic–Inorganic Hybrid Structures
title_fullStr	Development of Photofunctional Devices Based on Organic–Inorganic Hybrid Structures
title_full_unstemmed	Development of Photofunctional Devices Based on Organic–Inorganic Hybrid Structures
title_sort	development of photofunctional devices based on organic–inorganic hybrid structures
publisher	The Electrochemical Society of Japan
publishDate	2021
url	https://doaj.org/article/41f2c50162024313a64f7ab390a9c645
work_keys_str_mv	AT ayumiishii developmentofphotofunctionaldevicesbasedonorganicinorganichybridstructures
_version_	1718444524381929472

Development of Photofunctional Devices Based on Organic–Inorganic Hybrid Structures

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