The effect of the different donor units on fluorescent conjugated polymers containing 2,1,3-benzooxadiazole as the acceptor unit

Investigation of Optical and Electrochemical Properties of Benzene Based Solution Processable 2,1,3-Benzooxadiazole Comprising Polymers

“…1,2-Bis (octyloxy)benzene, 1,2-dinitro-4,5-bis(octyloxy)benzene, 5,6-bis (octyloxy)benzo[c] [1,2,5]oxadiazole, 4,7-dibromo-5,6-bis(octyloxy) benzo[c] [1,2,5]oxadiazole, tributyl(thiophene-2-yl)stannane and 5,6bis(octyloxy)-4,7-di(thiophen-2-yl)benzo[c] [1,2,5]oxadiazole (M1) were synthesized according to previously described methods. [60][61][62][63] Four monomers; M1, M2, M3 and M4 were brominated using N-bromosuccinimide in chloroform solution using acetic acid as the catalyst (Scheme 1). All reactions were carried out under inert atmosphere unless otherwise mentioned.…”

Fabrication of D–A–D type conducting polymer, carbon nanotubes and silica nanoparticle-based laccase biosensor for catechol detection

“…The replacement of the selenium atom with the sulfur atom allows to adjust the absorption spectra and bandgaps of the conjugated polymers due to the large diameter of the selenium atom and its lower electronegativity. 12 In addition, the better polarizability of selenium atom than sulfur atom provides selenium-based polymers greater charge mobility and transfer. In addition, the ability to substitute the alkyl chain at the fifth and sixth positions in the benzazole group results in readily soluble polymers.…”

“…Due to these features, the thieno[3,2- b ]thiophene group was chosen as the electron donor and the 2,1,3-benzoselenadiazole group was the electron acceptor group in the synthesis of the donor–acceptor type low bandgap polymer preferred in this work. 12…”

“…Due to these features, the thieno[3,2-b]thiophene group was chosen as the electron donor and the 2,1,3benzoselenadiazole group was the electron acceptor group in the synthesis of the donor-acceptor type low bandgap polymer preferred in this work. 12 Although it has been demonstrated that non-covalently functionalized CP biomolecule-based biosensor systems facilitate the selective and fast detection of catechol, the most stable sensor systems could be created with the integration of functional nanomaterials in polymer-based systems to improve the shelf-life and stability of the system. Thus, herein, a combination of the physical properties and high surface-to volume ratios of nanoparticles for the surface modification of transducers that are highly sensitive and selective biosensors was done.…”

Tuning molecular energy levels and band gap of two-dimensional benzo[1,2-b:4,5-b′] dithiophene and quinoxaline bearing polymers

“…These desirable properties have prompted much interest in selenophene containing polymers for both organic solar cell and transistor applications [12]. In literature, there are several examples for selenophene containing conjugated polymers which have been reported with improved device performance, especially charge carrier mobility, over their thiophene-containing analogues [13][14][15][16][17].…”