METHODS OF PEROVSKITE OPTOELECTRONIC DEVICE AND PEROVSKITE OPTOELECTRONIC DEVICE PREPARED THEREBY

摘要

The present invention discloses a perovskite optoelectronic device and porous polymer particles prepared therefrom. The present invention comprises the steps of forming an electron transport layer on the first electrode; forming a photoactive layer including a perovskite compound on the electron transport layer by spray coating (orthogonal spray coating); forming a hole transport layer on the photoactive layer containing the perovskite compound; and forming a second electrode on the hole transport layer, wherein the photoactive layer including the perovskite compound has a composition gradient in the depth direction from the hole transport layer to the electron transport layer. characterized in that