Metallic Phthalocyanines: impact of the film deposition method on its supramolecular arrangement and sensor performance

Abstract

This short review gives a concise overview of the impact of deposition methods on the supramolecular arrangement of metallic phthalocyanine films and their applications. Primarily, an introduction about the possible phthalocyanine molecular structures and derivatives obtained from modification on the phthalocyanine rings was presented. The possibility of perfecting/improving the supramolecular arrangement of metallic phthalocyanine (MPcs) films by using different deposition techniques such as langmuir-Blodgett (lB), langmuir-Schaefer (lS), layer-by-layer (lbl), physical vapor deposition (PVD) and electrodeposition was discussed in further details. herein, we highlighted some techniques used on the characterization of supramolecular arrangement (morphology, optical properties, and molecular organization), including the impact on sensing applications. The main scope of this short review is focused on the advances made in this research field in the last five years.

Exploring Deposition Techniques and Supramolecular Arrangement in Thin Films for Sensor Applications

“…Katsuhiko Ariga has particularly reviewed the LB and the LbL strategies to fabricate films of porphyrins and related molecules [115]. Maximino et al [116] have highlighted the versatility of fabricating thin films of metallic Pc through different techniques (LB, LS, LbL, PVD, and electrodeposition). Concerning the use of a Langmuir trough, the rigid nature of the pristine porphyrin floating monolayers appeared to hamper the transferring by the LB technique in some cases, and most works have used the LS transferring method [117][118][119][120].…”

“…Metal tetrasulfonated phthalocyanines (MTsPc) are water-soluble and versatile molecules with supramolecular properties that make them suitable for LbL deposition [116]. Typically, sulfonic groups in the MTsPc structure provide both water solubility and negative charges to the LbL assembly.…”