“…Therefore, they have different advanced technological application areas. The main areas of use are electrochemical applications [10,11], gas sensors [12,13], pigments and dye industry [14,15], photovoltaic materials [16,17], liquid crystals [18,19], organic field transistors [20][21][22], non-linear optical materials [23][24][25], light-emitting devices [26,27], optical switching and limiting devices [28][29][30], solar cells [31,32] and as a photosensitizer for photodynamic therapy (PDT) [33][34][35][36][37][38][39][40][41]. The type of metal in the metal-containing phthalocyanine (MPc) cavity, changes MPc's planar geometry, solubility, thermal and optical stability, as well as electrical and chemical properties [42][43][44][45][46][47][48][49][50].…”