Light-harvesting porphyrazines to enable intramolecular singlet fission

Diana-Paola Medina; Ilias Papadopoulos; Giulia Lavarda; Henrik Gotfredsen; Parisa R. Rami; Rik R. Tykwinski; M. Salomé Rodríguez-Morgade; Dirk M. Guldi; Tomás Torres

doi:10.1039/C9NR08161E

Light-harvesting porphyrazines to enable intramolecular singlet fission

Diana-Paola Medina, Ilias Papadopoulos, Giulia Lavarda, Henrik Gotfredsen, Parisa R. Rami, Rik R. Tykwinski, M. Salomé Rodríguez-Morgade, Dirk M. Guldi, Tomás Torres

Kemisk Institut

6 Citationer (Scopus)

Abstract

A porphyrazine featuring complementary absorption to a pentacene dimer was chosen to fill the absorption gap of the latter in the range of 450 to 600 nm to realize panchromatic absorption through the visible region out to ca. 700 nm. Of even greater relevance is the quantitative intramolecular Förster resonance energy transfer (i-FRET) to funnel energy to the pentacene moieties, where efficient intramolecular singlet fission (i-SF) converts the singlet excited state into the corresponding triplet excited states. Remarkably, the triplet quantum yield either via direct excitation or via indirect i-FRET is up to 200% ± 20% in polar solvents.

Originalsprog	Engelsk
Tidsskrift	Nanoscale
Vol/bind	11
Udgave nummer	46
Sider (fra-til)	22286-22292
ISSN	2040-3364
DOI	https://doi.org/10.1039/C9NR08161E
Status	Udgivet - 14 dec. 2019

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10.1039/C9NR08161E

Citationsformater

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title = "Light-harvesting porphyrazines to enable intramolecular singlet fission",

abstract = "A porphyrazine featuring complementary absorption to a pentacene dimer was chosen to fill the absorption gap of the latter in the range of 450 to 600 nm to realize panchromatic absorption through the visible region out to ca. 700 nm. Of even greater relevance is the quantitative intramolecular F{\"o}rster resonance energy transfer (i-FRET) to funnel energy to the pentacene moieties, where efficient intramolecular singlet fission (i-SF) converts the singlet excited state into the corresponding triplet excited states. Remarkably, the triplet quantum yield either via direct excitation or via indirect i-FRET is up to 200% ± 20% in polar solvents.",

author = "Diana-Paola Medina and Ilias Papadopoulos and Giulia Lavarda and Henrik Gotfredsen and Rami, {Parisa R.} and Tykwinski, {Rik R.} and Rodr{\'i}guez-Morgade, {M. Salom{\'e}} and Guldi, {Dirk M.} and Tom{\'a}s Torres",

year = "2019",

month = dec,

day = "14",

doi = "10.1039/C9NR08161E",

language = "English",

volume = "11",

pages = "22286--22292",

journal = "Nanoscale",

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TY - JOUR

T1 - Light-harvesting porphyrazines to enable intramolecular singlet fission

AU - Medina, Diana-Paola

AU - Papadopoulos, Ilias

AU - Lavarda, Giulia

AU - Gotfredsen, Henrik

AU - Rami, Parisa R.

AU - Tykwinski, Rik R.

AU - Rodríguez-Morgade, M. Salomé

AU - Guldi, Dirk M.

AU - Torres, Tomás

PY - 2019/12/14

Y1 - 2019/12/14

N2 - A porphyrazine featuring complementary absorption to a pentacene dimer was chosen to fill the absorption gap of the latter in the range of 450 to 600 nm to realize panchromatic absorption through the visible region out to ca. 700 nm. Of even greater relevance is the quantitative intramolecular Förster resonance energy transfer (i-FRET) to funnel energy to the pentacene moieties, where efficient intramolecular singlet fission (i-SF) converts the singlet excited state into the corresponding triplet excited states. Remarkably, the triplet quantum yield either via direct excitation or via indirect i-FRET is up to 200% ± 20% in polar solvents.

AB - A porphyrazine featuring complementary absorption to a pentacene dimer was chosen to fill the absorption gap of the latter in the range of 450 to 600 nm to realize panchromatic absorption through the visible region out to ca. 700 nm. Of even greater relevance is the quantitative intramolecular Förster resonance energy transfer (i-FRET) to funnel energy to the pentacene moieties, where efficient intramolecular singlet fission (i-SF) converts the singlet excited state into the corresponding triplet excited states. Remarkably, the triplet quantum yield either via direct excitation or via indirect i-FRET is up to 200% ± 20% in polar solvents.

U2 - 10.1039/C9NR08161E

DO - 10.1039/C9NR08161E

M3 - Journal article

SN - 2040-3364

VL - 11

SP - 22286

EP - 22292

JO - Nanoscale

JF - Nanoscale

IS - 46

ER -

Light-harvesting porphyrazines to enable intramolecular singlet fission

Abstract

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