provided is a dye - sensitized solar cell including liquid - type imidazolium material , which is liquid at a room temperature to a high temperature , as electrolyte .. the dye - sensitized solar cell includes a semiconductor electrode ; a confronting electrode ; and electrolyte of 1 , 3 - vinylalkylimidazolium iodide family being inserted between the semiconductor electrode and the confronting electrode . since the solar cell of the present research uses 1 , 3 - vinylalkylimidazolium iodide instead of iodine - family oxidation and reduction electrolyte including organic solvent easily volatilized at a high temperature . thus , the solar cell can have excellent thermal stability and temperature stability as well as high energy conversion efficiency .