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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/52537
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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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1844614142601723904 |
score |
13.070432 |