On the photo-stability of single molecules. Dibenzoterrylene in 2,3-dimethylnaphthalene crystals

Deperasińska, Irena; Karpiuk, Elena; Banasiewicz, Marzena; Kozankiewicz, Β.

doi:10.1016/j.cplett.2010.04.025

Cited by 17 publications

(15 citation statements)

References 25 publications

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“…S1). It is visible that the embedded DBT molecule loses the C 2h symmetry characterizing the isolated DBT . Figure b illustrates the resulting large distortion of the terrylene core and the tetracene unit of DBT.…”

Section: Resultsmentioning

confidence: 99%

Matrix‐induced Linear Stark Effect of Single Dibenzoterrylene Molecules in 2,3‐Dibromonaphthalene Crystal

et al. 2018

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Absorption and fluorescence from single molecules can be tuned by applying an external electric field – a phenomenon known as the Stark effect. A linear Stark effect is associated to a lack of centrosymmetry of the guest in the host matrix. Centrosymmetric guests can display a linear Stark effect in disordered matrices, but the response of individual guest molecules is often relatively weak and non‐uniform, with a broad distribution of the Stark coefficients. Here we introduce a novel single‐molecule host‐guest system, dibenzoterrylene (DBT) in 2,3‐dibromonaphthalene (DBN) crystal. Fluorescent DBT molecules show excellent spectral stability with a large linear Stark effect, of the order of 1.5 GHz/kVcm −1 , corresponding to an electric dipole moment change of around 2 D. Remarkably, when the electric field is aligned with the a crystal axis, nearly all DBT molecules show either positive or negative Stark shifts with similar absolute values. These results are consistent with quantum chemistry calculations. Those indicate that DBT substitutes three DBN molecules along the a ‐axis, giving rise to eight equivalent embedding sites, related by the three glide planes of the orthorhombic crystal. The static dipole moment of DBT molecules is created by host‐induced breaking of the inversion symmetry. This new host–guest system is promising for applications that require a high sensitivity of fluorescent emitters to electric fields, for example to probe weak electric fields.

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Section: Resultsmentioning

confidence: 99%

Matrix‐induced Linear Stark Effect of Single Dibenzoterrylene Molecules in 2,3‐Dibromonaphthalene Crystal

et al. 2018

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“…Its most stable stereoisomer in vacuum is non-planar and part of the C 2h group, both in S 0 and S 1 states. 54 Similar bond lengths and nuclear positions in S 0 and S 1 lead to a strong 00ZPL. In isolated DBT, 41 of the normal modes are totally symmetric (A g ).…”

Section: The Molecular Systemmentioning

confidence: 98%

High-resolution vibronic spectroscopy of a single molecule embedded in a crystal

Zirkelbach,

Mirzaei,

Deperasinska

et al. 2021

Preprint

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Vibrational levels of the electronic ground states in dye molecules have not been previously explored at high resolution in solid matrices. We present new spectroscopic measurements on single polycyclic aromatic molecules of dibenzoterrylene embedded in an organic crystal made of para-dichlorobenzene. To do this, we use narrow-band continuous-wave lasers and combine spectroscopy methods based on fluorescence excitation and stimulated emission depletion (STED) to select individual vibronic transitions at a resolution of ∼ 30 MHz dictated by the linewidth of the electronic excited state. In this fashion, we identify several exceptionally narrow vibronic levels in the electronic ground state with linewidths down to values around 2 GHz. Additionally, we sample the distribution of vibronic wavenumbers, relaxation rates, and Franck-Condon factors, both in the electronic ground and excited states for a handful of individual molecules. We discuss various noteworthy experimental findings and compare them with the outcome of DFT calculations. The highly detailed vibronic spectra obtained in our work pave the way for studying the nanoscopic local environment of single molecules. The approach also provides an improved understanding of the vibrational relaxation mechanisms in the electronic ground state, which may help to create long-lived vibrational states for applications in quantum technology.

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“…We rationalized such a situation in terms of the energy diagram of the electronic states of Tr, which prevents efficient spin-orbit coupling between the singlet S 1 and the triplet T 1 and T 2 states responsible for the intersystem crossing pathway. 11,20 The bright and photostable single molecules of Tr were already detected in polycrystalline 1,2-21 and 1,4-dichlorobenzenes, 22 both host matrices with heavy-atoms of chlorine.…”

Section: Optical Studies Of Single Molecules Of Tr In 23-dcn and 23mentioning

confidence: 99%

Single molecules of terrylene in di-substituted naphthalenes crystallizing in the herringbone pattern

et al. 2017

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On the photo-stability of single molecules. Dibenzoterrylene in 2,3-dimethylnaphthalene crystals

Cited by 17 publications

References 25 publications

Matrix‐induced Linear Stark Effect of Single Dibenzoterrylene Molecules in 2,3‐Dibromonaphthalene Crystal

Matrix‐induced Linear Stark Effect of Single Dibenzoterrylene Molecules in 2,3‐Dibromonaphthalene Crystal

High-resolution vibronic spectroscopy of a single molecule embedded in a crystal

Single molecules of terrylene in di-substituted naphthalenes crystallizing in the herringbone pattern

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