One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 120-21-8, Name is 4-Diethylaminobenzaldehyde, formurla is C11H15NO. In a document, author is Liu, Shuang, introducing its new discovery. Application In Synthesis of 4-Diethylaminobenzaldehyde.
The effect of benzoxazole unit on the properties of cyclic thiourea functionalized triphenylamine dye sensitizers
Two D-pi-A-A sensitizers (AZ6-B20 and AZ6-B21) were synthesized by inserting the benzoxazole group as an auxiliary acceptor between the pi-linker and the acceptor. And a D-A-pi-A sensitizer (AZ6-B19) was also synthesized in our previous works by the insertion of the benzoxazole between the donor and the pi-linker. The effects of benzoxazole groups on the properties at different sites of dye sensitizers were distinguishing. Their light harvest abilities were investigated by UV-vis spectra both in the solution and on the films. The results show that the absorption bands of UV-vis spectra are quite different from D-A-pi-A and D-pi-A-A dyes. The much more intensive molar extinction coefficients (53807 M-1 cm(-1) and 52555 M-1 cm(-1)) were observed at around 575 nm for D-pi-A-A dyes. The photovoltaic properties of DSSCs were also evaluated by J-V curves and IPCE measurements. The results confirmed that D-pi-A-A dyes delivered high photovoltaic efficiency (AZ6-B20: 7.48%, AZ6-B21: 8.67%) compared with that of D-A-pi-A dye (AZ6-B19: 3.27%). The details on the relation of the structures/ properties were discussed by the optical physical absorption, electrical chemical measurements and DFT calculations.
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Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem