Apparatus for monitoring a dye solution to be adsorbed to a dye-sensitized solar cell, and apparatus for adjusting the dye solution

A dye adsorption device for a dye-sensitized solar cell comprising

• a storage tank of the dye solution, having a transfer apparatus for entrance and exit of a dye support;
• the dye solution monitoring device for a dye-sensitized solar comprising a light-absorption device for measuring absorbance from the storage tank or a transfer line of a dye solution, or collecting a sample from the storage tank or the transfer line and measuring absorbance therefrom wherein the dye solution comprises a ruthenium (Ru)-based dye having TBA (Terabutyl Ammonium) of which the acidity or basicity changes during the absorption process and molar concentration of dye is measured through a change in UV absorbance rate by irradiating light to the dye using a UV light source equipped in the light-absorption device and a pH measuring device for measuring pH from a storage tank or a transfer line of the dye solution, or collecting a sample collected from the storage tank or the transfer line and measuring pH therefrom;
• a dye supply device supplying the storage tank with a dye solution of higher concentration than the dye solution in the storage tank;
• a pH control device controlling the pH by supplying base to the storage tank in case that the acidity of the dye solution is increased and supplying acid in case that the basicity is increased and wherein the pH control device controls the pH of the dye solution by adding acid or base to the storage tank in order to prevent TBA cations adhered to the dye from being dissociated;
• a temperature control part measuring and controlling temperature of the dye solution in the storage tank;
• a pressure control part measuring and controlling pressure of the dye solution in the storage tank;
• and
• a controller controlling the dye supply device and the pH control device according to absorbance and pH values obtained from the monitoring device.

A dye adsorption device for a dye-sensitized solar cell comprising

• a storage tank of the dye solution, having a transfer line circulating the dye solution to a module of the dye-sensitized solar cell;
• the dye solution monitoring device for a dye-sensitized solar comprising a light-absorption device for measuring absorbance from the storage tank or the transfer line of a dye solution, or collecting a sample from the storage tank or the transfer line and measuring absorbance therefrom wherein the dye solution comprises a ruthenium (Ru)-based dye having TBA (Terabutyl Ammonium) of which the acidity or basicity changes during the absorption process and wherein molar concentration of dye is measured through a change in UV absorbance rate by irradiating light to the dye using a UV light source equipped in the light-absorption device and a pH measuring device for measuring pH from the storage tank or the transfer line of the dye solution, or collecting a sample collected from the storage tank or the transfer line and measuring pH therefrom;
• a dye supply device supplying the storage tank with a dye solution of higher concentration than the dyes solution in the storage tank;
• a pH control device controlling the pH by supplying base to the storage tank in case that the acidity of the dye solution is increased and supplying acid in case that the basicity is increased and wherein the pH control device controls the pH of the dye solution by adding acid or base to the storage tank in order to prevent TBA cations adhered to the dye from being dissociated;
• a temperature control part measuring and controlling temperature of the dye solution in the transfer line or temperature of the dye-sensitized solar cell module;
• a pressure control part measuring and controlling pressure of the dye solution in the transfer line or pressure in the dye-sensitized solar cell module;
• and
• a controller controlling the dye supply device and the pH control device according to absorbance and pH values obtained from the monitoring device.