Circularly polarized luminescence from pyrene excimers

Ohishi, Yuki; Inoûye, Masahiko

doi:10.1016/j.tetlet.2019.151232

Cited by 64 publications

(36 citation statements)

References 48 publications

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“…For the sake of simplicity, we propose as a new approach a chiral arrangement of achiral PDIs to take advantages of the intrinsic photophysical properties of such chromophores. Following a similar strategy, pyrenes have been extensively used in the context of CPL (Hashimoto et al, 2016;Takaishi et al, 2018;Ohishi and Inouye, 2019). Nevertheless, the possibility of forming excimer inter-or intramolecularly drops the quantum yield of the emission.…”

Section: Introductionmentioning

confidence: 99%

Simple Perylene Diimide Cyclohexane Derivative With Combined CPL and TPA Properties

et al. 2020

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In this work we describe the linear and non-linear (chiro)optical properties of an enantiopure bis-perylenediimide (PDI) cyclohexane derivative. This compound exhibits upconversion based on a two-photon absorption (TPA) process with a cross-section value of 70 GM together with emission of circularly polarized luminescence (CPL), showing a g lum in the range of 10 −3 . This simple structure represents one of the scarce examples of purely organic compounds combining both TPA and CPL responses, together with large values of molar absorptivity and fluorescence quantum yield with emission in the 500-600 nm. Self-assembly induced by introduction of a poor solvent allows for a spectacular shift of the emission into the near-infrared (NIR, 650-750 nm) by formation of well-defined rotationally displaced dimers. Therefore, we are here presenting a versatile platform whose optical properties can be simply tuned by self-assembly or by functionalization of the electron-deficient aromatic core of PDIs.

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Section: Introductionmentioning

confidence: 99%

Simple Perylene Diimide Cyclohexane Derivative With Combined CPL and TPA Properties

et al. 2020

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“…Another attractive luminescence is circularly polarized luminescence (CPL) by chiral luminophores. In contrast to the recent intensive studies on the CPL-emissive organic small molecules in solution states, [137][138][139] the MCL behavior of CPLemissive organic crystals is still less explored. [140][141][142] Further investigations on the mechanoresponsive properties of chiral polymorphic crystals will be necessary.…”

Section: Summary and Perspectivementioning

confidence: 98%

Luminescent polymorphic crystals: mechanoresponsive and multicolor-emissive properties

Ito

2022

CrystEngComm

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“…Most recent is the detection of circular polarization in electroluminescence [46] and cathodoluminescence. [47,48] CPL measurements also apply to molecular species that do not exist in the electronic ground state, such as excimers [49][50][51][52][53] and exciplexes.…”

Section: Applications Scope Of the Cpl Techniquementioning

confidence: 99%

Circular Polarization of Luminescence as a Tool To Study Molecular Dynamical Processes

Meskers

2021

ChemPhotoChem

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Circular polarization of luminescence is a phenomenon that can be observed for chiral molecules in isotropic solution, for molecular aggregates and molecular materials. Also, the electroluminescence from chiral molecular materials in organic light emitting diodes can be nearly completely circularly polarized. In this review we focus on the latest developments in experimental results for the categories listed above. A unifying description of the origin of the circular polarization is still missing. We revisit the very earliest efforts to measure and understand circular polarization in light emission in order to better understand the present day confusion on the origins of the polarization. It seems that quantum field theory of electromagnetic interactions could provide leads for a comprehensive description of the circular polarization including contributions from helicity at all possible length scales from the molecular to the macroscopic.

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Circularly polarized luminescence from pyrene excimers

Cited by 64 publications

References 48 publications

Simple Perylene Diimide Cyclohexane Derivative With Combined CPL and TPA Properties

Simple Perylene Diimide Cyclohexane Derivative With Combined CPL and TPA Properties

Luminescent polymorphic crystals: mechanoresponsive and multicolor-emissive properties

Circular Polarization of Luminescence as a Tool To Study Molecular Dynamical Processes

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