“…Additionally, target biomolecule immobilization and recognition often take place at the photoelectrodes modified by photoactive materials. A wide variety of photoactive materials are commonly used, including inorganic semiconductor materials (ZnO, 92,93 TiO 2 , 94–96 CdS, 78,97–100 BiVO 4 , 79,101 etc . ), organic materials (porphyrins, 102 phthalocyanines, 103 etc .…”