PL and EL properties of oligo(p-phenylene vinylene) (OPPV) derivatives and their applications in organic light-emitting diodes (OLED)

Chaieb, A.; Vignau, Laurence; Brown, Ross; Wantz, Guillaume; Huby, Nolwenn; François, Jeanne; Dagron‐Lartigau, Christine

doi:10.1016/j.optmat.2008.01.012

Cited by 30 publications

(18 citation statements)

References 32 publications

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“…An extensive study of the photobehaviour of mono-nitro and di-nitro derivatives has been performed by the group of D. Schulte-Frohlinde and H. Görner in Muhleim. 1 Compound 2 has been the object of large attention, both theoretically and experimentally, with the aim of comparing its emission properties with those of the distyrylfluorene analogue 16 or investigating its two photon absorption 17 and its applications in organic light-emitting diodes 18 but its emission/photoreaction competition and the involvement of the triplet manifold have not been investigated at our knowledge. However, if the opposite side of the molecule bears a unity of more or less efficient donor properties, thus favouring intramolecular charge transfer (ICT) processes, the rate of the competitive deactivation pathways may be strongly modified.…”

Section: Introductionmentioning

confidence: 99%

Unusual high fluorescence of two nitro-distyrylbenzene-like compounds induced by CT processes affecting the fluorescence/intersystem-crossing competition

Carlotti

Elisei

Mazzucato

et al. 2015

Phys. Chem. Chem. Phys.

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Two nitro-substituted 1,4-distyrylbenzene-like compounds have been investigated using stationary and time-resolved (ns/fs) spectrometric techniques as a function of solvent polarity. In the two compounds the central benzene ring is substituted with a p-nitrostyryl group at one side while, at the other side, compound 1 (asymmetric) bears a pyrid-4-ylethenyl group and compound 2 (symmetric) another p-nitrostyryl group. The solvent dependent intramolecular charge transfer (ICT) in the singlet manifold was found to strongly affect the competition among fluorescence, intersystem crossing and trans-cis photoisomerization. The presence of nitro-groups in the 1,4-distyrylbenzene skeleton causes the usual strong decrease of fluorescence in favour of intersystem crossing to a reactive triplet state. However, the favoured formation of the ICT state in polar solvents induces an unexpected important increase of the fluorescence quantum yield (three/two order of magnitude for the nitro and dinitro derivatives, respectively). The ultrafast spectral transients helped to understand the solvent effects measured by stationary techniques and gave information on the dynamics of the locally excited singlet state ((1)LE*) and the (1)ICT* state, fast produced in polar solvents. Evidence of dual fluorescence in a limited range of solvent polarity, particularly for compound 1, is also reported. The role of an upper triplet state in a non-polar solvent is discussed also based on quantum-mechanical calculations (TD-DFT method) and temperature effects on the photophysical parameters.

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Section: Introductionmentioning

confidence: 99%

Unusual high fluorescence of two nitro-distyrylbenzene-like compounds induced by CT processes affecting the fluorescence/intersystem-crossing competition

Carlotti

Elisei

Mazzucato

et al. 2015

Phys. Chem. Chem. Phys.

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“…The electron-donating and electron-withdrawing groups at opposite ends and spinning effects in spatial molecule structure are the effective factors. Due to the strong donating and withdrawing groups attached to the molecule, the stability of electrons decrease and this is proper for seeing the red-shift phenomenon [17]. For stronger groups this shift will be even larger [18].…”

Section: Excremental Setup and Resultsmentioning

confidence: 99%

Fabrication of a near infrared OLED using a new organic chromophore

Sharbati

Emami

Gharavi

et al. 2009

2009 IEEE 13th International Multitopic Conference

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“…The value of barrier height can be calculated by the relation: [4]. Figure 8. shows (50-500 kHz) C-V characteristic of the Au/Quercetin-co(II) complex/n-Si MIS capacitor with a gate bias sweep from +3 to -3 V at room temperature.…”

Section: Figure 7 F(v) Vs V Plot Of Au/quercetin-co(ii) Complex/n-smentioning

confidence: 99%

“…By making contact them with inorganic semiconductors, i.e. Si, GaAs, GaN and so on, many electronic and optoelectronic devices, OLEDs [1][2][3][4], Schottky Barrier Diodes (SBD) [5][6][7], OFETs [8][9][10]have been fabricating for long years. OLEDs have been extensively studied because of a large number of touchscreen mobile phone and thin displays fabrications.…”

Section: Introductionmentioning

confidence: 99%

Optical, Electrical and Photoelectrical Properties of Quercetin-Co(ii) Complex/N-Si Organic-Inorganic Hybrid Device

Özaydın¹,

TOMBAK²,

Boğa³

et al. 2015

MEJS

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PL and EL properties of oligo(p-phenylene vinylene) (OPPV) derivatives and their applications in organic light-emitting diodes (OLED)

Cited by 30 publications

References 32 publications

Unusual high fluorescence of two nitro-distyrylbenzene-like compounds induced by CT processes affecting the fluorescence/intersystem-crossing competition

Unusual high fluorescence of two nitro-distyrylbenzene-like compounds induced by CT processes affecting the fluorescence/intersystem-crossing competition

Fabrication of a near infrared OLED using a new organic chromophore

Optical, Electrical and Photoelectrical Properties of Quercetin-Co(ii) Complex/N-Si Organic-Inorganic Hybrid Device

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