Hydrogen Sensor and Method of Manufacturing the Same

A method of manufacturing a hydrogen sensor, the method comprising the steps of:

• preparing a mold which has a hydrogen detection part pattern, a nanogap pattern and a base which are to be formed on a hydrogen sensor substrate;
• preparing a material to which the patterns of the mold are transferrable;
• forming the hydrogen sensor substrate by bringing the mold into contact with the material to thus transfer the patterns of the mold to the material and then detaching the mold from the material to which the patterns are transferred, the hydrogen sensor substrate having a base part which corresponds to the base of the mold, a plurality of hydrogen detection parts which is erected from the base part and corresponds to the nanogap pattern, and a plurality of nanogaps which is formed between the hydrogen detection parts and corresponds to the hydrogen detection part pattern;
• and
• forming a thin film on the hydrogen sensor substrate, the thin film being made of a transition metal or an alloy thereof which is to be expanded by hydrogen.