| 主权项 |
1. A photovoltaic layer comprising at least one organic compound having a general structural formula I: where Cor1 is a polycyclic core of a first type; Cor2 is a polycyclic core of a second type; B is a bridging group providing a bond of the polycyclic core Cor1 with the polycyclic core Cor2 via covalent chemical bonds; R1 and R2 are molecular groups providing solubility of the organic compound in a suitable solvent; m is 1, 2, 3 or 4; n is 0, 1, 2, 3 or 4; X1and X2 are modifying groups which modify energy levels HOMO and LUMO of the polycyclic cores Cor1 and Cor2 accordingly; p is 0, 1, 2; q is 0, 1, 2; wherein said organic compound forms rod-like supramolecules and absorbs electromagnetic radiation in at least one predetermined spectral subrange within a wavelength range from 400 to 3000 nm with excitation of electron-hole pairs; the polycyclic core Cor1, the bridging group B, and the polycyclic core Cor2 form a molecular system Cor1-B-Cor2-B-Cor1 selected from the list comprising a donor-bridge-acceptor-bridge-donor system and acceptor-bridge-donor-bridge-acceptor system in which a dissociation of excited electron-hole pairs is carried out; wherein the organic compound homeotropically aligned in respect to the photovoltaic layer surface and the polycyclic cores Cor1 and Cor2 assemble into a π-π stack of a first type and a π-π stack of a second type respectively, and wherein the stacks of one type realize electron transport, the stacks of another type realizehole transport and said stacks are electrically isolated from each other by the molecular groups R1 and R2. |
