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

摘要

This disclosure relates to a dye solution monitoring device and a dye solution controlling device for a dye-sensitized solar cell, more particularly, to a dye solution monitoring device for a dye-sensitized solar cell comprising a light-absorption device for measuring absorbance of a dye solution for a dye-sensitized solar cell, and a pH measuring device for measuring pH of a dye solution for a dye-sensitized solar cell; and, a dye solution controlling device for a dye-sensitized solar cell further comprising a dye supply device supplying dye of high concentration, and an acid or base supply device for pH control, in addition to the monitoring device.;According to the present invention, a dye adsorption process may be optimized in real time to manufacture a solar cell of high quality with high productivity, maximize utilization of expensive dye, and minimize the waste, thereby reducing production cost.

主权项

1. A dye solution control device for a dye-sensitized solar cell comprising:
a storage tank of the dye solution; a dye solution monitoring device for a dye-sensitized solar cell 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 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 for supplying the storage tank with a dye solution of higher concentration than the dye solution in the storage bath; a pH control device for 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; and a controller controlling the dye supply device and the pH control device according to the absorbance and pH values obtained from the monitoring device.