DOI: 10.22184/1993-7296.FRos.2020.

As a result of experiments with spectra of organic semiconductors molecules, a new physical effect was found. It connects the bandgap width of photoconductivity and the integral autocorrelational characteristics of absorption spectra in the visible and UV‑range. An integral parameter of autocorrelational function (IACF) was taken as a phenomenological characteristics.
The parameter reflects a correlation of electronic states under molecules excitations. The regularity found can be explained by the dependence of bandgap width on electronic states that govern electron transfusions from the valence to the conduction band. Since the autocorrelational function of spectra reflects interconnection between resonant electronic states which create optical spectra; then, the IACF, on the one hand, reflects correlational interactions of electron, on the other hand, electron states energy. That is why we can speak about correlation between the mentioned parameter with the bandgap width that is connected to relevant activation energy of photoconductivity. The discovered regularities are confirmed by
investigations in organic semiconductors rows on the base of anthraquinones and oxypyrenes. The regularities allow to evaluate the bandgap width of photoconductivity of organic semiconductors on the base of anthraquinones and oxypyrenes by the IPAF of optical absorption spectra in the visible and UV ranges with the consistent accuracy for practical applications ±(0,01–0,02) eV. The results of research can be applied in molecular
electronics, photonics, nano and microelectronics, in construction of quantum generators on organic semiconductors base as well.


Разработка: студия Green Art