Tailoring electronic structure of polyazomethines thin films

• Autorzy: Wieszka J. , Hajduk B. , Domański M. , Chwastek M. , Jurusik J. , Jarząbek B. , Bednarski H. , Jarka P.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The aim of this work is to show how electronic properties of polyazomethine thin films deposited by chemical vapor deposition method (CVD) can be tailored by manipulating technological parameters of pristine films preparation as well as modifying them while the as-prepared films put into iodine atmosphere. Design/methodology/approach: The recent achievements in the field of designing and preparation methods to be used while preparing polymer photovoltaic solar cells or optoelectronic devices. Findings: The method used allow for pure pristine polymer thin films to be prtepared without any unintentional doping taking place during prepoaration methods. This is a method based on polycondensation process, where polymer chain developing is running directly due to chemical reaction between molecules of bifunctional monomers. The method applied to prepare thin films of polyazomethines takes advantage of monomer transporting by mreans of neutral transport agent as pure argon is. Research limitations/implications: The main disadvantage of alternately conjugated polymers seems to be quite low mobility of charge carrier that is expected to be a consequence of their backbone being built up of sp2 hybridized carbon and nitrogen atoms. Varying technological conditions towards increasing reagents mass transport to the substrate is expected to give such polyazomethine thin films organization that phenylene rin stacking can result in special đ electron systems rather than linear ones as it is the case. Originality/value: Our results supply with original possibilities which can be useful in ooking for good polymer materials for optoelectronic and photovoltaic applications. These results have been gained on polyazomethine thin films but their being isoelectronic counterpart to widely used poly p-phenylene vinylene may be very convenient to develop high efficiency polymer solar cells.

Słowa kluczowe

EN

thin film; CVD; vacuum evaporation; electronic structure; polymer photovoltanics

PL

cienka warstwa; CVD; odparowanie ciśnieniowe; struktura elektroniczna; fotowoltanika polimerów

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2010
• Tom: Vol. 42, nr 1-2
• Strony: 180--187
• Opis fizyczny: Bibliogr. 15 poz., rys., tabl.

Twórcy

autor

Wieszka J.

autor

Hajduk B.

autor

Domański M.

autor

Chwastek M.

autor

Jurusik J.

autor

Jarząbek B.

autor

Bednarski H.

autor

Jarka P.

• Center of Polymer Chemistry, Polish Academy of Sciences, ul. Marii Sklodowskiej Curie 34, 41-819 Zabrze, Poland,

Bibliografia

• [1] C.Y. Yang, S.A. Janekhe, Conjugated aromatic poly(azomethines). 1. Characterization of structure, electronic spectra and processing of thin films from soluble complexes, Chemistry of Materials 3 (1991) 878-887.
• [2] Kubono, N. Okui, Polymer thin films prepared by vapour deposition, Progress Polymer Science 19 (1994) 389-438.
• [3] J. Mc Elvain, S. Tatsuura, F. Wudl, A.J. Heeger, Linear and nonlinear optical spectra of polyazomethines fabricated by chemical vapour deposition, Synthetic Metals 95 (1998) 101-105.
• [4] B. Hajduk, J. Weszka, V. Cozan, B. Kaczmarczyk, B. Jarząbek, M. Domanski, Optical properties of polyazomethine with oxygen atom in the backbone, Archives of Materials Scienceand Engineering 32/2 (2008) 85-88.
• [5] M.S. Weaver, D.D.C. Bradley, Organic elektroluminescence devices fabricated with chemical vapour deposited polyazomethine films, Synthetic Metals 61-66 (1996) 83.
• [6] J. Weszka, M. Domański, B. Jarząbek, J. Jurusik, J. Cisowski, A. Burian, Influence of technological conditions on electronic transitions in chemical vapor deposited poly(azomethine) thin films, Thin Solid Films 516 (2008) 3098-3104.
• [7] B. Hajduk, J. Weszka, J. Jurusik, B. Jarząbek, Thin PPI films doped with iron (III) chloride, Journal of Mechanical Engineering and Production Managemant, 4 (2007) 65.
• [8] B. Hajduk, J. Weszka, B. Jarząbek, J. Jurusik, M. Domański, Physical properties of polyazomethine thin films doped with iodine, Jounal of Achievements in Materials and Manufacturing Engineering 67-70 (2007) 24.
• [9] B. Jarząbek, J. Weszka, M. Domański, J. Jurusik, J. Cisowski, Optical studies of aromatic polyazomethine thin films, Journal of Non-Crystalline Solids 354 (2008) 856-862.
• [10] B. Jarząbek, J. Weszka, M. Domański, J. Cisowski, Optical properties of amorphous polyazomethine thin films, Journal of Non-Crystalline Solids 352 (2006) 1660-1662.
• [11] B. Hajduk, J. Weszka, J. Jurusik, Influence of LCVD technological parameters on properties of polyazomethine thin films, Journal of Achievements in Materials and Manufacturing Engineering 36/1 (2009) 41-48.
• [12] J. Weszka, H. Bednarski, M. Domański, Electronic structure of poly(azomethine) thin films, Journal of Chemical Physics 131(2009) 024901-024909.
• [13] L.A. Dobrzański, Engineering materials and materials design. Fundamentals of materials science and physical metallurgy, WNT, Warsaw-Gliwice, 2006 (in Polish).
• [14] J. Weszka, Thin films of aromatic polyazomethines, in Polymer Thin Films, Ed. Abbass A. Hashim, 2010 In-Tech, www.intechweb.org, ISBN: 978-953-307-059-9, p.94.
• [15] B. Jarząbek, J. Weszka, M. Domański, J. Cisowski, Optical properties of amorphous polyazomethine thin films, Journal of Non-Crystalline Solids 352 (2006) 1660-1662.