Molecular Design Strategy for High-Yield and Long-Lived Individual Doubled Triplet Excitons through Intramolecular Singlet Fission

Taku Hasobe; Shunta Nakamura; Nikolai V. Tkachenko; Yasuhiro Kobori

doi:10.1021/acsenergylett.1c02300

Molecular Design Strategy for High-Yield and Long-Lived Individual Doubled Triplet Excitons through Intramolecular Singlet Fission

Taku Hasobe, Shunta Nakamura, Nikolai V. Tkachenko, Yasuhiro Kobori

Materiaalitiede ja ympäristötekniikka

Tutkimustuotos: Katsausartikkeli › vertaisarvioitu

18 Sitaatiot (Scopus)

Abstrakti

Multi-exciton generation of organic chromophores, i.e., singlet fission (SF), is highly promising for photoenergy conversion such as photocatalysis and photovoltaics. Among the reported high-yield SF systems, many systems possess only short-lived triplet excited states derived from correlated triplet pair intermediates, but not individual doubled triplet excitons. However, high-yield and long-lived individual triplet exciton generation is favorable for achieving efficient photoenergy conversion. In this Focus Review, we discuss the molecular design strategy for high-yield and long-lived individual triplet exciton generation through intramolecular SF utilizing a series of acene derivatives such as hexacene, pentacene, and tetracene. In addition to clarifying the structural and vibronic characters required for high-yield individual triplet exciton generation, specific examples of the photoenergy conversion far exceeding 100% quantum yields of subsequent electron-transfer products and singlet oxygen generation are presented.

Alkuperäiskieli	Englanti
Sivut	390-400
Sivumäärä	11
Julkaisu	ACS Energy Letters
Vuosikerta	7
Numero	1
Varhainen verkossa julkaisun päivämäärä	2021
DOI - pysyväislinkit	https://doi.org/10.1021/acsenergylett.1c02300
Tila	Julkaistu - 2022
OKM-julkaisutyyppi	A2 Katsausartikkeli tieteellisessä aikakauslehdessä

Rahoitus

This work was partially supported by JSPS KAKENHI Grant-in-Aid for Transformative Research Areas, “Dynamic Exciton” (JP20H05832 to Y.K. and JP21H05403 to T.H.) and Grant Nos. JP19H00888, JP20K21174 to Y.K., JP18H01957, JP18K19063, JP20H05234, JP20KK0120, JP21H01908, JP21K19011 to T.H., and JP20J13133 to S.N. This work was partially carried out by the joint research program of Molecular Photoscience Research Center, Kobe University and the Research Program of “Five-star Alliance” in “NJRC Mater. & Dev.” The authors deeply appreciate Dr. H. Sakai, Dr. M. Fuki, Dr. H. Nagashima, Ms. R. Khan, Mr. T. Saegusa, and Mr. K. Onishi for their collaborations.

Julkaisufoorumi-taso

Jufo-taso 1

!!ASJC Scopus subject areas

Chemistry (miscellaneous)
Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology
Materials Chemistry

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10.1021/acsenergylett.1c02300

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@article{dc19c4af75fa4287b21c87a9058b6c5b,

title = "Molecular Design Strategy for High-Yield and Long-Lived Individual Doubled Triplet Excitons through Intramolecular Singlet Fission",

abstract = "Multi-exciton generation of organic chromophores, i.e., singlet fission (SF), is highly promising for photoenergy conversion such as photocatalysis and photovoltaics. Among the reported high-yield SF systems, many systems possess only short-lived triplet excited states derived from correlated triplet pair intermediates, but not individual doubled triplet excitons. However, high-yield and long-lived individual triplet exciton generation is favorable for achieving efficient photoenergy conversion. In this Focus Review, we discuss the molecular design strategy for high-yield and long-lived individual triplet exciton generation through intramolecular SF utilizing a series of acene derivatives such as hexacene, pentacene, and tetracene. In addition to clarifying the structural and vibronic characters required for high-yield individual triplet exciton generation, specific examples of the photoenergy conversion far exceeding 100% quantum yields of subsequent electron-transfer products and singlet oxygen generation are presented. ",

author = "Taku Hasobe and Shunta Nakamura and Tkachenko, {Nikolai V.} and Yasuhiro Kobori",

note = "Funding Information: This work was partially supported by JSPS KAKENHI Grant-in-Aid for Transformative Research Areas, “Dynamic Exciton” (JP20H05832 to Y.K. and JP21H05403 to T.H.) and Grant Nos. JP19H00888, JP20K21174 to Y.K., JP18H01957, JP18K19063, JP20H05234, JP20KK0120, JP21H01908, JP21K19011 to T.H., and JP20J13133 to S.N. This work was partially carried out by the joint research program of Molecular Photoscience Research Center, Kobe University and the Research Program of “Five-star Alliance” in “NJRC Mater. & Dev.” The authors deeply appreciate Dr. H. Sakai, Dr. M. Fuki, Dr. H. Nagashima, Ms. R. Khan, Mr. T. Saegusa, and Mr. K. Onishi for their collaborations. Publisher Copyright: {\textcopyright} 2021 American Chemical Society.",

year = "2022",

doi = "10.1021/acsenergylett.1c02300",

language = "English",

volume = "7",

pages = "390--400",

journal = "ACS Energy Letters",

issn = "2380-8195",

publisher = "American Chemical Society ACS",

number = "1",

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TY - JOUR

T1 - Molecular Design Strategy for High-Yield and Long-Lived Individual Doubled Triplet Excitons through Intramolecular Singlet Fission

AU - Hasobe, Taku

AU - Nakamura, Shunta

AU - Tkachenko, Nikolai V.

AU - Kobori, Yasuhiro

N1 - Funding Information: This work was partially supported by JSPS KAKENHI Grant-in-Aid for Transformative Research Areas, “Dynamic Exciton” (JP20H05832 to Y.K. and JP21H05403 to T.H.) and Grant Nos. JP19H00888, JP20K21174 to Y.K., JP18H01957, JP18K19063, JP20H05234, JP20KK0120, JP21H01908, JP21K19011 to T.H., and JP20J13133 to S.N. This work was partially carried out by the joint research program of Molecular Photoscience Research Center, Kobe University and the Research Program of “Five-star Alliance” in “NJRC Mater. & Dev.” The authors deeply appreciate Dr. H. Sakai, Dr. M. Fuki, Dr. H. Nagashima, Ms. R. Khan, Mr. T. Saegusa, and Mr. K. Onishi for their collaborations. Publisher Copyright: © 2021 American Chemical Society.

PY - 2022

Y1 - 2022

N2 - Multi-exciton generation of organic chromophores, i.e., singlet fission (SF), is highly promising for photoenergy conversion such as photocatalysis and photovoltaics. Among the reported high-yield SF systems, many systems possess only short-lived triplet excited states derived from correlated triplet pair intermediates, but not individual doubled triplet excitons. However, high-yield and long-lived individual triplet exciton generation is favorable for achieving efficient photoenergy conversion. In this Focus Review, we discuss the molecular design strategy for high-yield and long-lived individual triplet exciton generation through intramolecular SF utilizing a series of acene derivatives such as hexacene, pentacene, and tetracene. In addition to clarifying the structural and vibronic characters required for high-yield individual triplet exciton generation, specific examples of the photoenergy conversion far exceeding 100% quantum yields of subsequent electron-transfer products and singlet oxygen generation are presented.

AB - Multi-exciton generation of organic chromophores, i.e., singlet fission (SF), is highly promising for photoenergy conversion such as photocatalysis and photovoltaics. Among the reported high-yield SF systems, many systems possess only short-lived triplet excited states derived from correlated triplet pair intermediates, but not individual doubled triplet excitons. However, high-yield and long-lived individual triplet exciton generation is favorable for achieving efficient photoenergy conversion. In this Focus Review, we discuss the molecular design strategy for high-yield and long-lived individual triplet exciton generation through intramolecular SF utilizing a series of acene derivatives such as hexacene, pentacene, and tetracene. In addition to clarifying the structural and vibronic characters required for high-yield individual triplet exciton generation, specific examples of the photoenergy conversion far exceeding 100% quantum yields of subsequent electron-transfer products and singlet oxygen generation are presented.

U2 - 10.1021/acsenergylett.1c02300

DO - 10.1021/acsenergylett.1c02300

M3 - Review Article

AN - SCOPUS:85122581578

SN - 2380-8195

VL - 7

SP - 390

EP - 400

JO - ACS Energy Letters

JF - ACS Energy Letters

IS - 1

ER -

Molecular Design Strategy for High-Yield and Long-Lived Individual Doubled Triplet Excitons through Intramolecular Singlet Fission

Abstrakti

Rahoitus

Julkaisufoorumi-taso

!!ASJC Scopus subject areas

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