On the efficacy of anthracene isomers for triplet transmission from CdSe nanocrystals

Autores
Xia, Pan; Huang, Zhiyuan; Li, Xin; Romero, Juan José; Vullev, Valentine I.; Pau, George Shu Heng; Tang, Ming Lee
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effect of isomeric substitutions on the transmitter for triplet energy transfer (TET) between nanocrystal (NC) donor and molecular acceptor is investigated. Each isomeric acceptor is expected to bind in a unique orientation with respect to the NC donor. We see that this orbital overlap drastically affects the transmission of triplets. Here, two functional groups, the carboxylic acid and dithiocarbamate, were varied between the 1-, 2- and 9-positions of the anthracene ring to give three ACA and three ADTC isomers. These six anthracene isomers served as transmitters for triplets between CdSe NC sensitizers and 9,10-diphenylanthracene annihilators for photon upconversion. The photon upconversion quantum yield (QY) is the highest for 9-ACA (12%), lowest for 9-ADTC (0.1%), around 3% for both 1-ACA and 1-ADTC, and about 1% for the 2-isomers. These trends in QYs are reflected in the rates of TET given by ultrafast transient absorption spectroscopy where a maximum of 3.8 × 107 s−1 for 9-ACA was measured. Molecular excited state energy levels were measured both in solution and polymer hosts to correlate structure to TET. This work confirms that anthracene excited states levels are very sensitive to molecular substitution, which in combination with orbital overlap, critically affect Dexter-based TET.
Fil: Xia, Pan. University of California; Estados Unidos
Fil: Huang, Zhiyuan. University of California; Estados Unidos
Fil: Li, Xin. University of California; Estados Unidos
Fil: Romero, Juan José. University of California; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vullev, Valentine I.. University of California; Estados Unidos
Fil: Pau, George Shu Heng. Lawrence Berkeley National Laboratory; Estados Unidos
Fil: Tang, Ming Lee. University of California; Estados Unidos
Materia
quantum dots
triplet transmission
solar energy conversion
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/52537

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spelling On the efficacy of anthracene isomers for triplet transmission from CdSe nanocrystalsXia, PanHuang, ZhiyuanLi, XinRomero, Juan JoséVullev, Valentine I.Pau, George Shu HengTang, Ming Leequantum dotstriplet transmissionsolar energy conversionhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2The effect of isomeric substitutions on the transmitter for triplet energy transfer (TET) between nanocrystal (NC) donor and molecular acceptor is investigated. Each isomeric acceptor is expected to bind in a unique orientation with respect to the NC donor. We see that this orbital overlap drastically affects the transmission of triplets. Here, two functional groups, the carboxylic acid and dithiocarbamate, were varied between the 1-, 2- and 9-positions of the anthracene ring to give three ACA and three ADTC isomers. These six anthracene isomers served as transmitters for triplets between CdSe NC sensitizers and 9,10-diphenylanthracene annihilators for photon upconversion. The photon upconversion quantum yield (QY) is the highest for 9-ACA (12%), lowest for 9-ADTC (0.1%), around 3% for both 1-ACA and 1-ADTC, and about 1% for the 2-isomers. These trends in QYs are reflected in the rates of TET given by ultrafast transient absorption spectroscopy where a maximum of 3.8 × 107 s−1 for 9-ACA was measured. Molecular excited state energy levels were measured both in solution and polymer hosts to correlate structure to TET. This work confirms that anthracene excited states levels are very sensitive to molecular substitution, which in combination with orbital overlap, critically affect Dexter-based TET.Fil: Xia, Pan. University of California; Estados UnidosFil: Huang, Zhiyuan. University of California; Estados UnidosFil: Li, Xin. University of California; Estados UnidosFil: Romero, Juan José. University of California; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Vullev, Valentine I.. University of California; Estados UnidosFil: Pau, George Shu Heng. Lawrence Berkeley National Laboratory; Estados UnidosFil: Tang, Ming Lee. University of California; Estados UnidosRoyal Society of Chemistry2017-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/52537Xia, Pan; Huang, Zhiyuan; Li, Xin; Romero, Juan José; Vullev, Valentine I.; et al.; On the efficacy of anthracene isomers for triplet transmission from CdSe nanocrystals; Royal Society of Chemistry; Chemical Communications; 53; 7; 1-2017; 1241-12441359-7345CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/C6CC08229Ginfo:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2017/CC/C6CC08229Ginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:18:15Zoai:ri.conicet.gov.ar:11336/52537instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:18:15.711CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv On the efficacy of anthracene isomers for triplet transmission from CdSe nanocrystals
title On the efficacy of anthracene isomers for triplet transmission from CdSe nanocrystals
spellingShingle On the efficacy of anthracene isomers for triplet transmission from CdSe nanocrystals
Xia, Pan
quantum dots
triplet transmission
solar energy conversion
title_short On the efficacy of anthracene isomers for triplet transmission from CdSe nanocrystals
title_full On the efficacy of anthracene isomers for triplet transmission from CdSe nanocrystals
title_fullStr On the efficacy of anthracene isomers for triplet transmission from CdSe nanocrystals
title_full_unstemmed On the efficacy of anthracene isomers for triplet transmission from CdSe nanocrystals
title_sort On the efficacy of anthracene isomers for triplet transmission from CdSe nanocrystals
dc.creator.none.fl_str_mv Xia, Pan
Huang, Zhiyuan
Li, Xin
Romero, Juan José
Vullev, Valentine I.
Pau, George Shu Heng
Tang, Ming Lee
author Xia, Pan
author_facet Xia, Pan
Huang, Zhiyuan
Li, Xin
Romero, Juan José
Vullev, Valentine I.
Pau, George Shu Heng
Tang, Ming Lee
author_role author
author2 Huang, Zhiyuan
Li, Xin
Romero, Juan José
Vullev, Valentine I.
Pau, George Shu Heng
Tang, Ming Lee
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv quantum dots
triplet transmission
solar energy conversion
topic quantum dots
triplet transmission
solar energy conversion
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The effect of isomeric substitutions on the transmitter for triplet energy transfer (TET) between nanocrystal (NC) donor and molecular acceptor is investigated. Each isomeric acceptor is expected to bind in a unique orientation with respect to the NC donor. We see that this orbital overlap drastically affects the transmission of triplets. Here, two functional groups, the carboxylic acid and dithiocarbamate, were varied between the 1-, 2- and 9-positions of the anthracene ring to give three ACA and three ADTC isomers. These six anthracene isomers served as transmitters for triplets between CdSe NC sensitizers and 9,10-diphenylanthracene annihilators for photon upconversion. The photon upconversion quantum yield (QY) is the highest for 9-ACA (12%), lowest for 9-ADTC (0.1%), around 3% for both 1-ACA and 1-ADTC, and about 1% for the 2-isomers. These trends in QYs are reflected in the rates of TET given by ultrafast transient absorption spectroscopy where a maximum of 3.8 × 107 s−1 for 9-ACA was measured. Molecular excited state energy levels were measured both in solution and polymer hosts to correlate structure to TET. This work confirms that anthracene excited states levels are very sensitive to molecular substitution, which in combination with orbital overlap, critically affect Dexter-based TET.
Fil: Xia, Pan. University of California; Estados Unidos
Fil: Huang, Zhiyuan. University of California; Estados Unidos
Fil: Li, Xin. University of California; Estados Unidos
Fil: Romero, Juan José. University of California; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vullev, Valentine I.. University of California; Estados Unidos
Fil: Pau, George Shu Heng. Lawrence Berkeley National Laboratory; Estados Unidos
Fil: Tang, Ming Lee. University of California; Estados Unidos
description The effect of isomeric substitutions on the transmitter for triplet energy transfer (TET) between nanocrystal (NC) donor and molecular acceptor is investigated. Each isomeric acceptor is expected to bind in a unique orientation with respect to the NC donor. We see that this orbital overlap drastically affects the transmission of triplets. Here, two functional groups, the carboxylic acid and dithiocarbamate, were varied between the 1-, 2- and 9-positions of the anthracene ring to give three ACA and three ADTC isomers. These six anthracene isomers served as transmitters for triplets between CdSe NC sensitizers and 9,10-diphenylanthracene annihilators for photon upconversion. The photon upconversion quantum yield (QY) is the highest for 9-ACA (12%), lowest for 9-ADTC (0.1%), around 3% for both 1-ACA and 1-ADTC, and about 1% for the 2-isomers. These trends in QYs are reflected in the rates of TET given by ultrafast transient absorption spectroscopy where a maximum of 3.8 × 107 s−1 for 9-ACA was measured. Molecular excited state energy levels were measured both in solution and polymer hosts to correlate structure to TET. This work confirms that anthracene excited states levels are very sensitive to molecular substitution, which in combination with orbital overlap, critically affect Dexter-based TET.
publishDate 2017
dc.date.none.fl_str_mv 2017-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/52537
Xia, Pan; Huang, Zhiyuan; Li, Xin; Romero, Juan José; Vullev, Valentine I.; et al.; On the efficacy of anthracene isomers for triplet transmission from CdSe nanocrystals; Royal Society of Chemistry; Chemical Communications; 53; 7; 1-2017; 1241-1244
1359-7345
CONICET Digital
CONICET
url http://hdl.handle.net/11336/52537
identifier_str_mv Xia, Pan; Huang, Zhiyuan; Li, Xin; Romero, Juan José; Vullev, Valentine I.; et al.; On the efficacy of anthracene isomers for triplet transmission from CdSe nanocrystals; Royal Society of Chemistry; Chemical Communications; 53; 7; 1-2017; 1241-1244
1359-7345
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/C6CC08229G
info:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2017/CC/C6CC08229G
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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