Probing the excited state dynamics in perinone molecules for photovoltaic applications using transient absorption spectroscopy

Abstract

Nonfullerene polyaromatic molecules such as perinone are emerging as an alternative to fullerene derivatives due to their low manufacturing cost, ease of functionalization, and processing to improve the efficiency of...

Substitution effects on the photoinduced excited state dynamics of perylenemonoimides in solution and thin films

“…However, aggregation in thin films induces stabilization in the S 1 state, causing a red shift in the absorption spectra. 32–35 Similarly, the emission spectra in the thin films also exhibit broadening and a red shift compared to the spectra observed in THF. The emission spectra of the PMIB , BrPMITB , PMITB , and APITB thin films show maxima at 654 nm, 625 nm, 662 nm and 606 nm respectively, with a Q.Y.…”