A novel tetra-stilbene-based fluorescent compound: Synthesis, characterization and photophysical properties evaluation

Mahmoodi, Ali; Panahi, Farhad; Eshghi, Fazlolah; Kimiaei, Erfan

doi:10.1016/j.jlumin.2018.03.033

Cited by 16 publications

(9 citation statements)

References 55 publications

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“…[36][37][38][39][40][41][42][43][44] However, only a limited number of halochromic white light emitters have been synthesized so far, and the low quantum yield is still a critical issue. Herein, in continuation of our previous reports, [45][46][47][48][49][50] two highly e cient donor-π-acceptor and donor-π-donor stilbene-based uorescent chromophores (Figure 1) with white light emission introduced and their photophysical properties investigated.…”

Section: Introductionmentioning

confidence: 68%

New White Light-Emitting Halochromic Stilbenes with Remarkable Quantum Yields and Aggregation-Induced Emission

Panahi¹,

Mahmoodi²,

Ghodrati³

et al. 2021

Preprint

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Highly efficient single-component white light emitters (SWLEs), are attractive candidates for the simple and cost-effective fabrication of high-performance lighting devices. This study introduced a donor–π–acceptor and a donor–π–donor stilbene-based chromophores, representing pH-responsive fluorescence. The emitters showed yellow and green fluorescence in their neutral form. At the same time, protonation of the chromophores caused blue fluorescence color with a strong hypsochromic shift. The white light emission (WLE) for these chromophores was observed at approximately pH=3 due to the simultaneous presence of the neutral and protonated forms of the chromophores, covering almost all the emission spectra in the visible region (400-700 nm). These chromophores presented exceptional white light quantum yields (Φ) between 31-54%, which was desirable for producing white light-emitting devices. Density functional theory (DFT) and time-dependent (TD)-DFT were applied to study the structural and electronic properties of the chromophores.

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Section: Introductionmentioning

confidence: 68%

New White Light-Emitting Halochromic Stilbenes with Remarkable Quantum Yields and Aggregation-Induced Emission

Panahi¹,

Mahmoodi²,

Ghodrati³

et al. 2021

Preprint

Self Cite

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show abstract

“…However, only a limited number of halochromic white light emitters have been synthesized so far, and the low quantum yield is still a critical issue. Herein, in continuation of our previous reports 45 – 50 , two highly efficient donor–π–acceptor and donor–π–donor stilbene-based fluorescent chromophores (Fig. 1 ) with white light emission introduced and their photophysical properties investigated.…”

Section: Introductionmentioning

confidence: 70%

New white light-emitting halochromic stilbenes with remarkable quantum yields and aggregation-induced emission

Panahi

Mahmoodi

Ghodrati

et al. 2022

Sci Rep

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Highly efficient single-component white light emitters (SWLEs), are attractive candidates for the simple and cost-effective fabrication of high-performance lighting devices. This study introduced a donor–π–acceptor and a donor–π–donor stilbene-based chromophores, representing pH-responsive fluorescence. The emitters showed yellow and green fluorescence in their neutral form. At the same time, protonation of the chromophores caused blue fluorescence color with a strong hypsochromic shift. The white light emission (WLE) for these chromophores was observed at approximately pH 3 due to the simultaneous presence of the neutral and protonated forms of the chromophores, covering almost all the emission spectra in the visible region (400–700 nm). These chromophores presented exceptional white light quantum yields (Φ) between 31 and 54%, which was desirable for producing white light-emitting devices. Density functional theory (DFT) and time-dependent (TD)-DFT were applied to study the structural and electronic properties of the chromophores.

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“…In this study, in continuation of our previous reports 13,30–33 we synthesized a new D–π–A 2,6-distyryl naphthalene molecule containing an amino group as electron-donating and sulfonyl group as electron-withdrawing group in the terminals of the π-conjugated system. Two sulfonyl groups were used in ortho and para positions of the benzene ring in the acceptor terminal of the molecule in order to have a strong push–pull effect.…”

Section: Introductionmentioning

confidence: 78%

“…[9][10][11] Distyrylbenzenes are a well-known type of uorescent dyes that possess high photochemical and thermal stability. 12,13 To synthesize these conjugated spacers, two important organic transformations, namely Wittig and Heck reactions, are used. Depends on the availability of starting materials and the strategy used to prepare the stilbene and distyrylbenzene molecules, one of the aforementioned reactions is preferred to be used.…”

Section: Introductionmentioning

confidence: 99%

A novel donor–π–acceptor halochromic 2,6-distyrylnaphthalene chromophore: synthesis, photophysical properties and DFT studies

et al. 2021

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A novel tetra-stilbene-based fluorescent compound: Synthesis, characterization and photophysical properties evaluation

Cited by 16 publications

References 55 publications

New White Light-Emitting Halochromic Stilbenes with Remarkable Quantum Yields and Aggregation-Induced Emission

New White Light-Emitting Halochromic Stilbenes with Remarkable Quantum Yields and Aggregation-Induced Emission

New white light-emitting halochromic stilbenes with remarkable quantum yields and aggregation-induced emission

A novel donor–π–acceptor halochromic 2,6-distyrylnaphthalene chromophore: synthesis, photophysical properties and DFT studies

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