POLYMER SOLAR CELL AND METHOD OF FORMING THE SAME

摘要

Provided is a polymer solar cell. The polymer solar cell includes a photoactive layer having a network-structured electron donor layer and a silica thin film layer surrounding the electron donor layer. By mixing of electron donor polymers, electron acceptor polymers, and block copolymers, the electron donor polymers form polymer grains through a self-assembly process. In addition, during a heat treatment process, silica precursors included in the block copolymers cross-link to each other to form the silica thin film. Electrons generated in the electron donor layer tunnel through the silica thin film, and holes are blocked by the silica thin film. Accordingly, electron-hole recombination in the electron acceptor layer is prevented.

主权项

1. A polymer solar cell, comprising:
a lower electrode; a hole transport layer formed on the lower electrode; a photoactive layer formed on the hole transport layer and generating tunneling of electrons; and an upper electrode formed on the photoactive layer.