Optical, electrical, and gas sensing properties of chloroaluminium phthalocyanine thin film

Solution-Processed Chloroaluminum Phthalocyanine (ClAlPc) Ammonia Gas Sensor with Vertical Organic Porous Diodes

“…In general, when OSC-based chemical sensors are exposed to analytes, specific interactions (e.g., doping/de-doping, or trapping/quenching of charge carriers) occur between the sensing layer and the analyte. These interactions lead to affecting the charge transport properties (charge carrier density or mobility) in the OSC sensing layers [ 14 , 15 , 20 , 46 , 47 , 48 , 49 ]. As shown in Figure 2 d, the current of the ClAlPc device obviously decreases when the sensor is exposed to NH 3 gas and increases after the removal of NH 3 gas from the sensing chamber.…”

“…According to the literature, halogenated Pcs exhibit a favorable morphological structure and high thermal stability compared to metal Pcs [ 36 , 37 ]. In a few studies, ClAlPc and its composites have been utilized in gas and humidity sensors [ 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ]. In 2011, Azim-Araghi et al [ 42 ] studied the effect of temperature and humidity on a ClAlPc-based O 2 sensor.…”

“…Similarly, Jafari et al [ 41 ] found the sensing response of a ClAlPc sensor (NH 3 and ethanol) to be enhanced with the increase in the temperature up to the optimal operating temperature (T max = 76 °C), and the sensing response gradually reduced at high temperatures (>85 °C) due to the adsorption/desorption equilibrium phenomenon [ 43 ]. Recently, Araghi et al [ 46 ] fabricated a CO 2 gas sensor using ClAlPc by thermal evaporation. However, all the reported ClAlPc gas sensors were demonstrated to realize as low as ppm-regime sensitivity.…”

Synthesis and Spectroscopic and Luminescent Properties of Er, Yb and Lu Complexes with Cyano-Substituted Phthalocyanine Ligands

“…Complexes of rare earth elements (REE) with phthalocyanine derivatives constitute a separate group of compounds due to the specificity of their properties, which is determined by the nature of the central metal atom used. Metal phthalocyaninates are characterized by intense light absorption in the visible region [1][2][3][4], which determines their use as dyes [5][6][7] and elements of optical devices [8,9], while lanthanide complexes, along with the above properties, also exhibit absorption and, accordingly, emission in the near-IR region [10,11]. This opens up prospects for the use of such compounds as optical limiting devices [12][13][14], luminescent films, and sensors [9].…”

“…Metal phthalocyaninates are characterized by intense light absorption in the visible region [1][2][3][4], which determines their use as dyes [5][6][7] and elements of optical devices [8,9], while lanthanide complexes, along with the above properties, also exhibit absorption and, accordingly, emission in the near-IR region [10,11]. This opens up prospects for the use of such compounds as optical limiting devices [12][13][14], luminescent films, and sensors [9]. This fact is associated with the presence in the structure of the complex of an atom of a rare earth element, which makes it possible to realize luminescence of the 4f-type [15][16][17].…”