Benzimidazole‐indole‐chalcone connected methacrylate‐based side chain D‐π‐A polymer and its application in organic photovoltaics

Abstract

Herein, we report four metal-free organic polymethacrylates (In-In-BzI)PMA, (Ac-In-BzI)PMA, (TPA-In-BzI)PMA, and (Py-In-BzI)PMA with pendant chromophores donor-pconjugated-acceptor (D-p-A) molecular framework as photosensitizers for dye-sensitized solar cells (DSSCs). In which the donor-acceptor units are attached by an indole-chalcone extending side chain to inhibit back electron transfer and charge recombination; the p-linker component contains varied chalcone-based substituents to enhance the sunlightharvesting ability of the solar device. Photon-current cells based on the DSSC format were fabricated using the polymers as sensitizers. The DSSC device assembled using (TPA-In-BzI)PMA exhibits a considerably better IPCE peak and J-V response, with an overall power conversion efficiency of 3.70% under the illumination of AM 1.5G (100 mW cm -2 ).

Recent Progress Concerning the N-Arylation of Indoles

“…Among them, N -arylindoles have found applications in the field of materials chemistry. For example, N -arylindoles have been proposed as novel dye-sensitized solar cells [ 154 ], electrophosphorescent diodes [ 155 ], oxygen sensors [ 156 ], and other things [ 157 , 158 , 159 , 160 ]. Procedures for the N -arylation of indoles have also been used for the preparation of indoles with biological activity.…”

Multi Stimuli Responsive Non‐Doped Red Emitting AIEE Active Phenothiazine‐Based Chalcones: Crystal Structure, Solvatochromism, Turn‐on Mechanofluorochromism and Acidochromism

“…In the past few decades, functional fluorescent organic molecules have been a subject of intensive investigation due to their potential applications in the fields of fluorescent organic sensors, data storage, security papers, OLEDs, OPVs, and bioimaging. [1][2][3][4][5][6] A majority of the red emitting dyes are extensively π-conjugated systems doped with red dopant dyes such as strongly electron withdrawing dicyanomethylene group, porphyrin complexes, rare earth metal complexes etc., [7][8][9][10] and generally suffer from aggregation caused quenching (ACQ). The phenomenon of aggregation-induced emission enhancement (AIEE) [11,12] discovered by Tang, suggests that the molecules can be engineered to overcome the ACQ.…”

Acetophenone and thiophene side‐arm polyaryleneethynylene conjugated polymers for enrichment of electronic applications

“…An aligned film of chalcone side chain polymer has been investigated by polarized UV irradiation for flat panel applications . Benzimidazole‐indole‐chalcone based side‐arm methacrylate polymers have been investigated for organic photovoltaics . Chalcone based materials have been used for the development of four‐bit information storage systems .…”

“…18,19 Benzimidazole-indole-chalcone based side-arm methacrylate polymers have been investigated for organic photovoltaics. 20 Chalcone based materials have been used for the development of four-bit information storage systems. 21 Recently, Song et al have studied amplification of the circularly polarized luminescence of ⊎-hydroxyl chalcone based PAE CPs.…”