Original research paperLow temperature optical absorption of polycrystalline thin films of α-quaterthiophene, α-sexithiophene and α-octithiophene, three model oligomers of polythiophene

Add time:08/21/2019    Source:sciencedirect.com

UV-Vis absorption spectra of polycrystalline thin films of three conjugated oligothiophenes (quaterthiophene (α-4T), sexithiophene (α-6T) and octithiophene (α-8T)) have been studied over the temperature range 14–300 K. The fundamental π-π∗ band exhibits a succession of equally spaced side peaks on the low energy side (ΔE1 = 0.194 eV). Lowering the temperature down to 14 K considerably improves the spectral resolution and reveals additional hyperfine structures (ΔE2 = 0.019 eV). These complex multiplets are interpreted in terms of vibrational couplings to the fundamental S0 → S1 electronic transition.

We also recommend Trading Suppliers and Manufacturers of ALPHA-OCTITHIOPHENE (cas 113728-71-5). Pls Click Website Link as below: cas 113728-71-5 suppliers

Prev:Original articleEfficient transesterification resolution of 2-(4-chlorophenyl)-4-hydroxytetrahydropyran with magnetically separable immobilized lipase
Next:Assembly and electronic structure of octithiophene on Au(1 1 1))