Synthesis and Research of Some Phtalocyaninic Dyes with Cu, Zn for Testing in the Systems of Solar Cells Type

• Published in: Chemical Engineering of Polymers Vol. 1; pp. 309 - 317
• Main Authors: Robu, S., Dragalina, G., Popusoi, A., Nasedkina, N., Covali, A., Potlog, T.
• Format: Book Chapter
• Language: English
• Published: Canada CRC Press 2018; Apple Academic Press, Incorporated
• Edition: 1
• Subjects: Industrial chemistry; copolymers; Polymeric Phthalocyanines; Orbital Angular Momentum; photovoltaic devices; Spin Coating Method; Current Voltage Characteristics; Phthalocyaninic Derivatives; NMR Spectroscopy; carbazolyl methyl acrylate; UV Vis Spectroscopy; Donor Substitutes; Heterojunction Solar Cell; Solar Cells; Solar Cells Type; Higher Constant Temperature; Thermal Evaporation; Charge Carrier Generation; Organic Nanomaterials; thin films; Ground Tire Rubber; Electron Transport Layer; (Cu, Zn) phthalocyanines; Thermo Gravimetric Analysis; Phthalocyanine Molecule; Metal Phthalocyanines; High Temperature Polycondensation; Polymer Ceramic Nanocomposites; Nitrobenzene Solution; Valence Band
• ISBN: 1771884452; 9781771884457
• DOI: 10.1201/9781315365985-25

In this chapter, copper (Cu) and zinc (Zn) phthalocianines was synthesized in nitrobenzene solution at a temperature of 200°C to 300°C. Firstly, Cu and Zn salts-acetates were subject to dehydratation and then were purified by recrystallization from mixture of nitrobenzene and methanol. On the basis of the synthesized (Cu, Zn) Pc powders were obtained thin films by spin coating and thermal evaporation in high vacuum. The poliepoxipropil carbazole (PEPC) was used to improve the photoconductivity of the (Cu, Zn)Pc thin films. Annealing is a common method to improve the physical properties of thin films. We investigated the morphology and optical properties of (Cu, Zn) Pc thin films before and after thermal annealing using scanning electron microscope (SEM) and UV-Vis spectroscopy.Current–voltage characteristics demonstrated the formation of the ITO/CuPc hetero junctions. In this chapter, the authors investigate the morphology and optical properties of phtalocyanines thin films before and after thermal annealing using scanning electron microscope (SEM) and Ultraviolet-visible spectroscopy. Current–voltage characteristics demonstrated the formation of the ITO/CuPc hetero junctions. The properties of metal phthalocyanines strongly depend on the structure of their molecules. CuPc and ZnPc thin films were obtained introducing poliepoxipropil carbazole (PEPC) and CuPc, ZnPc powders, respectively in proportion 1:1. The photoluminescence (PL) spectra of these nanocomposites were measured using the excitation with a nitrogen laser operating at 337 nm. The PEPC was used to improve the photoconductivity of the Pc thin films. CuPc thin films treated in vacuum show a typical absorption bands, namely the Q band in the visible region at 739.2 nm.