Thermally activated delayed fluorescent (TADF) coordination polymer with the generation of singlet oxygen.

4,4'-{9,9'-Spirobi[10H-acridine]-10,10'-diyl}dibenzoic acid (L, CHNO) was designed and synthesized as a new donor-acceptor motif molecule. Due to the large dihedral angle between the planes of the carboxyphenyl group and the spiroacridine moiety, L possess thermally activated delayed fluorescence (TADF). By applying L as a ligand and using Cd as a metal connector, we synthesized the coordination polymer catena-poly[hemi-μ-aqua-aqua(μ-4,4'-{9,9'-spirobi[10H-acridine]-10,10'-diyl}dibenzoato)cadmium(II)], [Cd(CHNO)(HO)], (I).

Comprehensive Study of Sol-Gel versus Hydrolysis-Condensation Methods To Prepare ZnO Films: Electron Transport Layers in Perovskite Solar Cells.

Owing to the high charge mobility and low processing temperature, ZnO is regarded as an ideal candidate for electron transport layer (ETL) material in thin-film solar cells. For the film preparation, the presently dominated sol-gel (SG) and hydrolysis-condensation (HC) methods show great potential; however, the effect of these two methods on the performance of the resulting devices has not been investigated in the same frame. In this study, the ZnO films made through SG and HC methods were applied in perovskite solar cells (Pero-SCs), and the performances of corresponding devices were compared under parallel conditions.