Dye-sensitized solar cell and method of manufacturing the same

摘要

Provided are a dye-sensitized solar cell including a semiconductor electrode on which an insulating protective layer formed by self-assembling organic molecules dissolved in an electrolyte solution is formed, and a method of manufacturing the dye-sensitized solar cell, The dye-sensitized solar cell includes: a semiconductor electrode comprising: a metal oxide layer formed on a first conductive substrate; a dye molecule layer absorbed onto a surface of the metal oxide layer; and an insulating protective layer formed on at least one of a first portion of the surface of the metal oxide layer which is not covered by the dye molecule layer and a second portion of a surface of the first conductive substrate which does not contact the metal oxide layer; an opposite electrode disposed on a second conductive substrate and facing the semiconductor electrode; and an electrolyte solution filled in a space between the semiconductor electrode and the opposite electrode and including organic molecules having a functional group, which can be selectively self-assembled by a chemical bond with a metal oxide on the metal oxide, dissolved therein. Once the electrolyte solution is injected between the semiconductor electrode and the opposite electrode, the electrolyte solution contacts an electron transport layer and thus the organic molecules are self-assembled on the first portion or the second portion to form the insulating protective layer.