| abstract |
The invention discloses an organic heterojunction doped perovskite solar cell and a preparation method thereof, belonging to the technical field of organic optoelectronic devices in electronic components, and comprises a substrate, a first electrode layer, a functional layer and a The second electrode layer is characterized in that: the functional layer includes at least one perovskite active layer doped with an organic donor-acceptor heterojunction, and the organic donor-acceptor heterojunction includes two organic components , which are electron donor materials and electron acceptor materials, respectively, each organic component contains at least one polymer and one small molecule material; the organic heterojunction is doped in the perovskite precursor by dissolving into the solvent In solution, the perovskite active layer of the doped organic heterojunction was prepared by spin coating. Introducing the organic heterojunction into the perovskite active layer effectively broadens the spectrum, obtains photogenerated currents in other bands that are different from the perovskite absorption band, improves the filling factor of the device, and effectively improves the cell efficiency. |