FLUORESCENCE DETECTING DEVICE FOR DETECTING BIOMOLECULE USING AMORPHOUS-SILICON THIN FILM TRANSISTOR AND METHOD FOR DETECTING THE FLUORESCENCE USING THE SAME

摘要

PURPOSE: A fluorescence detecting device for detecting biomolecule using amorphous-silicon thin film transistor and a method for detecting the fluorescence using the same are provided, thereby reducing the size and costs of DNA chip because optical devices are not used, and requiring no fluorescence stimulating light blocking filter by using a transparent substrate. CONSTITUTION: A fluorescence detecting device for detecting biomolecule using amorphous-silicon thin film transistor comprises a first substrate with a probe biomolecule; a transparent substrate(102) having a first domain(I), a second domain(II) and a third domain(III), and having a first surface(102a) where a light is irradiated and a second surface(102b) arranged to face the first substrate; a light thin film transistor(TFToptic) producing electric charge responding to the fluorescence produced from the biomolecule on the second surface(102b) and positioned in the first domain(I); a capacity(CAP) storing the electric charge produced from the light thin film transistor(TFToptic) and positioned in parallel to the light thin film transistor(TFToptic) in the second domain(II); and a transfer thin film transistor(TFTtrans) transferring the electric charge to an additional analysis system and positioned in parallel to the capacity(CAP) in the third domain(III).