Photoelectrical Properties and Energetical Structure of Thin Films of Indandione Derivatives

Abstract

A sandwich type structure of two dimetilaminobenziliden-1,3-indandione (DMABI) derivatives placed between metal electrodes was made to investigate the photoelectrical properties of these derivatives. DMABI is an organic isolator with a wide energy gap and high quantum efficiency of the photogeneration, DMABI derivatives have received also considerable attention because of its large dipole moment and optical nonlinearities. Besides, since it is a photosensitive material, its use in solar systems is very promising. The energy gap of each material and combined system was observed from the spectral dependence of the quantum efficiency of the photoconductivity and results are compared with results of oxidation and reduction potential of the materials. The values showed a good correlation between experimental data of the photoconductivity and voltamperometry and calculated data of the HOMO and LUMO levels of the molecules.<p><a href="http://dx.doi.org/10.5755/j01.ms.17.2.480">http://dx.doi.org/10.5755/j01.ms.17.2.480</a></p

Improvement of Solar PV Efficiency. Potential Materials for Organic Photovoltaic Cells

“…The selection was also made with an emphasis on broadening the spectral response range of OPV. The maximum absorption capacities of the chosen derivatives are blue shifted compared to the DMABI and some other DMABI derivatives [15,16].…”