TTF based donor-pi-acceptor dyads synthesized for NLO applications

Abstract

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

All‐Optical Switching and Two‐States Light‐Controlled Coherent‐Incoherent Random Lasing in a Thiophene‐Based Donor‐Acceptor System

“…The vertical excitations energies were calculated using Time Dependent DFT (TD‐DFT) in order to characterize the nature of the electronic transitions and to assign the observed bands in UV‐visible absorption spectra. According to some limitations of TD‐DTF B3LYP method and high contribution of charge‐transfer transitions the calculations have been also carried out by CAM‐B3LYP method ,. The obtained theoretical and experimental results are given in Table .…”

“…According to some limitations of TD-DTF B3LYP method and high contribution of charge-transfer transitions the calculations have been also carried out by CAM-B3LYP method. [25,[31][32][33] The obtained theoretical and experimental results are given in Table 1. As it is shown in Figure 5 the spectra of anti and syn isomers are very similar, so we present only the calculated values for anti-conformers.…”

A Modified Oxazolone Dye Dedicated to Spectroscopy and Optoelectronics

“…(3) parameter less than 0.5 × 10 –22 m 2 /V 2 ). 60 Such observation makes materials engineering even more attractive and useful because based on the chemical structure pattern, it is possible to influence straightforwardly of the output physical, in particular, spectroscopic properties of the compounds. ( Table 5 ).…”

DFT/TDDFT studies of the structural, electronic, NBO and non-linear optical proper-ties of triphenylamine functionalized tetrathiafulvalene

“…Due to its good electrondonating capability and synthesis nearly forty years ago, the development and synthesis of tetrathiafulvalene (TTF) derivatives have been the subject of several studies [8]. These capabili-ties importantly allow useful applications in the chemistry of materials [5], conductors [9] and superconductors [10], adducts with C60 [11], 1 Corresponding Authors e-mail: m.bouachrine@umi.ac.ma conductive polymers [12], materials for non-linear optics (NLO) [13], cationic sponges [14], ferromagnetic organic magnets [15], liquid crystals [16], dendrimers [17], molecular rotaxanes and catenanes [18]. TTF has also played an important role in supramolecular chemistry and the creation of mechanically inter-locked molecules, electrochromic materials, molecular switches, and devices, where flexibility can be integrated due to TTF deriva-tives electron donor capacity and ability to form donoracceptor complexes with electron accep-tors [19].…”