Heteropentacyclic quinoxalino[2,3-b]phenoxazines: the synthesis, optoelectronic, and electrochemical properties

A series of new derivatives comprising heteropentacyclic 12Н-quinoxalino[2,3-b]-phenoxazine (QOPO) system and functionalized with arylamide anchoring groups was synthesized. Their photostability as well as the spectral, luminescent, electrochemical, and optoelectronic properties were studied both in...

Полное описание

Сохранить в:

Библиографические подробности
Главные авторы:	Demidov, O. P., Демидов, О. П.
Формат:	Статья
Язык:	English
Опубликовано:	2023
Темы:	Quinoxalino[2,3-b]phenoxazines Fluorescence Photostability DFT calculations Cyclic voltammetry Dye sensitizers
Online-ссылка:	https://dspace.ncfu.ru/handle/20.500.12258/23799
Метки:	Добавить метку Нет меток, Требуется 1-ая метка записи!

id	ir-20.500.12258-23799
record_format	dspace
spelling	ir-20.500.12258-237992025-02-11T08:02:36Z Heteropentacyclic quinoxalino[2,3-b]phenoxazines: the synthesis, optoelectronic, and electrochemical properties Demidov, O. P. Демидов, О. П. Quinoxalino[2,3-b]phenoxazines Fluorescence Photostability DFT calculations Cyclic voltammetry Dye sensitizers A series of new derivatives comprising heteropentacyclic 12Н-quinoxalino[2,3-b]-phenoxazine (QOPO) system and functionalized with arylamide anchoring groups was synthesized. Their photostability as well as the spectral, luminescent, electrochemical, and optoelectronic properties were studied both in composites prepared by adsorption of QOPO onto the TiO 2 surface and in solution. Attachment of the amide anchoring groups to the QOPO core provides high adsorption of the compounds and the onset of photo-voltaic properties that were not observed in the unfunctionalized precursors. However, these groups do not provide efficient injection of excited electrons into the conduction band of the semiconductor. According to B3LYP/6-311++G(d,p) density functional calculations of the model nanoclusters QOPO/(TiO 2 ) 10 , e fficient electron injection and, as a consequence, high photovoltaic conversion efficiency of dye-sensitized solar cells require delocalization of the LUMO of the QOPO /TiO 2 system over both structural fragments. Relevant anchoring groups are proposed. 2023-06-30T07:22:44Z 2023-06-30T07:22:44Z 2023 Статья Minkin V.I., Knyazev P.A., Omelichkin N.I., Makarova N.I., Borodkin G.S., Starikov A.G., Demidov O.P., Ivakhnenko E.P. Heteropentacyclic quinoxalino[2,3-b]phenoxazines: the synthesis, optoelectronic, and electrochemical properties // Russian Chemical Bulletin. - 2023. - 72(3), pp. 669-680. http://hdl.handle.net/20.500.12258/23799 en Russian Chemical Bulletin application/pdf application/pdf
institution	СКФУ
collection	Репозиторий
language	English
topic	Quinoxalino[2,3-b]phenoxazines Fluorescence Photostability DFT calculations Cyclic voltammetry Dye sensitizers
spellingShingle	Quinoxalino[2,3-b]phenoxazines Fluorescence Photostability DFT calculations Cyclic voltammetry Dye sensitizers Demidov, O. P. Демидов, О. П. Heteropentacyclic quinoxalino[2,3-b]phenoxazines: the synthesis, optoelectronic, and electrochemical properties
description	A series of new derivatives comprising heteropentacyclic 12Н-quinoxalino[2,3-b]-phenoxazine (QOPO) system and functionalized with arylamide anchoring groups was synthesized. Their photostability as well as the spectral, luminescent, electrochemical, and optoelectronic properties were studied both in composites prepared by adsorption of QOPO onto the TiO 2 surface and in solution. Attachment of the amide anchoring groups to the QOPO core provides high adsorption of the compounds and the onset of photo-voltaic properties that were not observed in the unfunctionalized precursors. However, these groups do not provide efficient injection of excited electrons into the conduction band of the semiconductor. According to B3LYP/6-311++G(d,p) density functional calculations of the model nanoclusters QOPO/(TiO 2 ) 10 , e fficient electron injection and, as a consequence, high photovoltaic conversion efficiency of dye-sensitized solar cells require delocalization of the LUMO of the QOPO /TiO 2 system over both structural fragments. Relevant anchoring groups are proposed.
format	Статья
author	Demidov, O. P. Демидов, О. П.
author_facet	Demidov, O. P. Демидов, О. П.
author_sort	Demidov, O. P.
title	Heteropentacyclic quinoxalino[2,3-b]phenoxazines: the synthesis, optoelectronic, and electrochemical properties
title_short	Heteropentacyclic quinoxalino[2,3-b]phenoxazines: the synthesis, optoelectronic, and electrochemical properties
title_full	Heteropentacyclic quinoxalino[2,3-b]phenoxazines: the synthesis, optoelectronic, and electrochemical properties
title_fullStr	Heteropentacyclic quinoxalino[2,3-b]phenoxazines: the synthesis, optoelectronic, and electrochemical properties
title_full_unstemmed	Heteropentacyclic quinoxalino[2,3-b]phenoxazines: the synthesis, optoelectronic, and electrochemical properties
title_sort	heteropentacyclic quinoxalino[2,3-b]phenoxazines: the synthesis, optoelectronic, and electrochemical properties
publishDate	2023
url	https://dspace.ncfu.ru/handle/20.500.12258/23799
work_keys_str_mv	AT demidovop heteropentacyclicquinoxalino23bphenoxazinesthesynthesisoptoelectronicandelectrochemicalproperties AT demidovop heteropentacyclicquinoxalino23bphenoxazinesthesynthesisoptoelectronicandelectrochemicalproperties
_version_	1842245848056987648

Heteropentacyclic quinoxalino[2,3-b]phenoxazines: the synthesis, optoelectronic, and electrochemical properties

Схожие документы