Chloro-substituted metallo-phthalocyanines (TiPcCl, MnPcCl, InPcCl, AlPcCl) applied to organic devices.

Chlorinated phthalocyanines-TiPcCl₂, MnPcCl, InPcCl, and AlPcCl-were studied as organic semiconductors and, in this framework, their behavior as a buffer layer. Initially, these metallophthalocyanines were characterized in solution using UV-visible spectroscopy to determine their optical band gaps, with results compared to density functional theory (DFT) calculations. The phthalocyanines were subsequently deposited as films via high-vacuum sublimation, and optically characterized to assess their reflectance and band gaps using the Kubelka-Munk function, with the lowest band gap for MnPcCl of 1.

Development of Composite Semiconductor Films Based on Organotin Complexes Doped with Cobalt Porphine for Applications in Organic Diodes.

In this work, we present the green synthesis of complex - derived from β-hidroxymethylidene indanones by ultrasound, which allowed for the obtaining of compounds in a shorter time and with good yields. These organotin complexes were then doped with cobalt porphine and incorporated into a poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) matrix to manufacture composite semiconductor films. The semiconductor films were characterized through atomic force microscopy, examining their topography, Knoop hardness (around 17 HK), and tensile strength, which varied from 5 × 10 to 7 × 10 Pa.