PEPC/CoPc nanocomposites: technology and their optical characteristics
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BORDIAN, Olga, VERLAN, Victor, CULEAC, Ion, YOVU, M., POPUSHOI, Ana, POPUŞOI, Mihail, DRAGALINA, Galina. PEPC/CoPc nanocomposites: technology and their optical characteristics. In: Nanotechnologies and Biomedical Engineering, Ed. 2, 18-20 aprilie 2013, Chișinău. Technical University of Moldova, 2013, Editia 2, pp. 340-344. ISBN 978-9975-62-343-8..
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Nanotechnologies and Biomedical Engineering
Editia 2, 2013
Conferința "International Conference on Nanotechnologies and Biomedical Engineering"
2, Chișinău, Moldova, 18-20 aprilie 2013

PEPC/CoPc nanocomposites: technology and their optical characteristics


Pag. 340-344

Bordian Olga1, Verlan Victor1, Culeac Ion1, Yovu M.1, Popushoi Ana2, Popuşoi Mihail2, Dragalina Galina2
 
1 Institute of Applied Physics, Academy of Sciences of Moldova,
2 Moldova State University
 
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Disponibil în IBN: 19 iunie 2019


Rezumat

New type of nanocomposite (NC) films have been fabricated on the basis of π-conjugated oligomer poly-(N-epoxypropyl)carbazole (PEPC) as polymeric matrix and organic compound Cobalt phthalocyanine (CoPc) NC as photochromic dye, and investigated. Thin layers of NC with different concentrations of CoPc in NC (0.2, 1, 3, 6, 9, 12 % of mass) on glass substrates from chemical solutions were deposited. The sizes of CoPc nanoparticles were less than 100 nm. Complex investigation of optical and photoluminescence properties allowed us to determine 3 absorbtion bands: the absorption band that appears in the region of 315–350 nm and verifies π→π* transition for the Soret band B band gap; and n→π* bands appeared at about 600–735 nm for the Q1 and Q2-band. The effect of IR shift of NC under UV irradiation on absorption was observed.

Cuvinte-cheie
nanocomposite, PEPC, Cobalt phthalocyanine, Chemical deposition, thin film