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Optical and chemical properties of polyterpenol thin films deposited via plasma-enhanced chemical vapor deposition

Published online by Cambridge University Press:  30 March 2011

Kateryna Bazaka
Affiliation:
Electronic Materials Research Lab, School of Engineering and Physical Sciences, James Cook University, Townsville QLD 4811, Australia
Mohan V. Jacob*
Affiliation:
Electronic Materials Research Lab, School of Engineering and Physical Sciences, James Cook University, Townsville QLD 4811, Australia
Bruce F. Bowden
Affiliation:
Department of Chemistry, School of Pharmacy and Molecular Sciences, James Cook University, Townsville QLD 4811, Australia
*
a)Address all correspondence to this author. e-mail: Mohan.Jacob@jcu.edu.au
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Abstract

The development of novel organic polymer thin films is essential for the advancement of many emerging fields including organic electronics and biomedical coatings. In this study, the effect of synthesis conditions, namely radio frequency (rf) deposition power, on the material properties of polyterpenol thin films derived from nonsynthetic environmentally friendly monomer was investigated. At lower deposition powers, the polyterpenol films preserved more of the original monomer constituents, such as hydroxy functional groups; however, they were also softer and more hydrophilic compared to polymers fabricated at higher power. Enhanced monomer fragmentation and consequent reduction in the presence of the polar groups in the structure of the high-power samples reduced their optical band gap value from 2.95 eV for 10 W to 2.64 eV for 100 W. Regardless of deposition power, all samples were found to be optically transparent with smooth, defect-free, and homogenous surfaces.

Type
Articles
Copyright
Copyright © Materials Research Society 2011

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References

REFERENCES

1.Biederman, H. and Slavínská, D.: Plasma polymer films and their future prospects. Surf. Coat. Technol. 125(1–3) 371 (2000).CrossRefGoogle Scholar
2.Denes, F.S. and Manolache, S.: Macromolecular plasma-chemistry: An emerging field of polymer science. Prog. Polym. Sci. 29(8), 815 (2004).CrossRefGoogle Scholar
3.Forrest, S.R.: The path to ubiquitous and low-cost organic electronic appliances on plastic. Nature 428(6986), 911 (2004).CrossRefGoogle ScholarPubMed
4.Muccini, M.: A bright future for organic field-effect transistors. Nat. Mater. 5(8), 605 (2006).CrossRefGoogle ScholarPubMed
5.Shi, F.F.: Recent advances in polymer thin films prepared by plasma polymerization: Synthesis, structural characterization, properties and applications. Surf. Coat. Technol. 82(1–2) 1 (1996).CrossRefGoogle Scholar
6.Song, Y., Wang, J., Li, G., Sun, Q., Jian, X., Teng, J., and Zhang, H.: Synthesis, characterization and optical properties of cross-linkable poly(phthalazinone ether ketone sulfone). Polymer (Guildf.) 49(3), 724 (2008).CrossRefGoogle Scholar
7.Hiratsuka, A. and Karube, I.: Plasma polymerized films for sensor devices. Electroanalysis 12(9), 695 (2000).3.0.CO;2-4>CrossRefGoogle Scholar
8.Kim, M.C., Cho, S.H., Han, J.G., Hong, B.Y., Kim, Y.J., Yang, S.H., and Boo, J.H.: High-rate deposition of plasma polymerized thin films using PECVD method and characterization of their optical properties. Surf. Coat. Technol. 169170, 595 (2003).CrossRefGoogle Scholar
9.Sajeev, U., Mathai, C., Saravanan, S., Ashokan, R., Venkatachalam, S., and Anantharaman, M.: On the optical and electrical properties of rf and a.c. plasma polymerized aniline thin films. Bull. Mater. Sci. 29(2), 159 (2006).CrossRefGoogle Scholar
10.Yasuda, H.: Glow discharge polymerization. J. Polym. Sci.: Macromol. Rev. 16(1) 199 (1981).Google Scholar
11.Yasuda, H. and Hsu, T.: Some aspects of plasma polymerization investigated by pulsed R.F. discharge. J. Polym. Sci., Part A: Polym. Chem. 15(1) 81 (1977).Google Scholar
12.Biederman, H. and Osada, Y.: Plasma Polymerization Processes (Elsevier Science Publications, New York, 1992), p. 210.Google Scholar
13.Bazaka, K. and Jacob, M.V.: Synthesis of radio frequency plasma polymerized non-synthetic terpinen-4-ol thin films. Mater. Lett. 63(18–19) 1594 (2009).CrossRefGoogle Scholar
14.Jacob, M.V., Bazaka, K., Weis, M., Taguchi, D., Manaka, T., and Iwamoto, M.: Fabrication and characterization of polyterpenol as an insulating layer and incorporated organic field effect transistor. Thin Solid Films 518(21), 6123 (2010).CrossRefGoogle Scholar
15.Bazaka, K., Jacob, M.V., Truong, V.K., Wang, F., Pushpamali, W.A., Wang, J., Ellis, A., Berndt, C.C., Crawford, R.J., and Ivanova, E.P.: Effect of plasma-enhaced chemical vapor deposition on the retention of antibacterial activity of terpinen-4-ol. Biomacromolecules 11(8), 2016 (2010).CrossRefGoogle Scholar
16.Jacob, M.V., Easton, C.D., Woods, G.S., and Berndt, C.C.: Fabrication of a novel organic polymer thin film. Thin Solid Films 516(12), 3884 (2008).CrossRefGoogle Scholar
17.Tauc, J., Menth, A., and Wood, D.L.: Optical and magnetic investigations of the localized states in semiconducting glasses. Phys. Rev. Lett. 25(11), 749 (1970).CrossRefGoogle Scholar
18.Zhao, X- Y., Wang, M-Z., Zhang, B-Z., and Mao, L.: Synthesis, characterization and nonlinear optical properties of plasma-prepared poly(4-biphenylcarbonitrile) thin films. Polym. Int. 56(5), 630 (2007).CrossRefGoogle Scholar
19.Lopez, G.P. and Ratner, B.D.: Substrate temperature effects on film chemistry in plasma deposition of organics. I. Nonpolymerizable precursors. Langmuir 7(4), 766 (1991).CrossRefGoogle Scholar
20.Casserly, T.B. and Gleason, K.K.: Effect of substrate temperature on the plasma polymerization of poly(methyl methacrylate). Chem. Vap. Deposition 12(1) 59 (2006).CrossRefGoogle Scholar
21.Miller, K.J.: Additivity methods in molecular polarizability. J. Am. Chem. Soc. 112(23), 8533 (1990).CrossRefGoogle Scholar
22.Hu, X., Zhao, X., Uddin, A., and Lee, C.B.: Preparation, characterization and electronic and optical properties of plasma-polymerized nitriles. Thin Solid Films 477(1–2) 81 (2005).CrossRefGoogle Scholar
23.Alexander, M.R. and Duc, T.M.: A study of the interaction of acrylic acid/1,7-octadiene plasma deposits with water and other solvents. Polymer (Guildf.) 40(20), 5479 (1999).CrossRefGoogle Scholar
24.Takeda, S., Yamamoto, K., Hayasaka, Y., and Matsumoto, K.: Surface OH group governing wettability of commercial glasses. J. Non-Cryst. Solids 249, 41 (1999).CrossRefGoogle Scholar
25.Annarelli, C.C., Fornazero, J., Cohen, R., Bert, J., and Besse, J.L.: Colloidal protein solutions as a new standard sensor for adhesive wettability measurements. J. Colloid Interface Sci. 213(2), 386 (1999).CrossRefGoogle ScholarPubMed
26.Eraiah, B. and Bhat, S.G.: Optical properties of samarium doped zinc-phosphate glasses. J. Phys. Chem. Solids 68(4), 581 (2007).CrossRefGoogle Scholar
27.Mujahid, M., Srivastava, D.S., Gupta, S., and Avasthi, D.K.: Estimation of optical band gap and carbon cluster sizes formed in heavy ion irradiated polycarbonate. Radiat. Phys. Chem. 74(2), 118 (2005).CrossRefGoogle Scholar
28.Tyczkowski, J. and Ledzion, R.: Electronic band structure of insulating hydrogenated carbon-germanium films. J. Appl. Phys. 86, 4412 (1999).CrossRefGoogle Scholar
29.Basa, D.K.: Correlation between the opto-electronic and structural parameters of amorphous semiconductors. Thin Solid Films 406(1–2) 75 (2002).CrossRefGoogle Scholar
30.Davis, E.A. and Mott, N.F.: Conduction in non-crystalline systems. V. Conductivity, optical absorption and photoconductivity in amorphous semiconductors. Philos. Mag. 22(179), 903 (1970).CrossRefGoogle Scholar
31.Oppedisano, C. and Tagliaferro, A.: Relationship between sp2 carbon content and E04 optical gap in amorphous carbon-based materials. Appl. Phys. Lett. 75(23), 3650 (1999).CrossRefGoogle Scholar
32.Bazaka, K. and Jacob, M.V.: Post-deposition ageing reactions of plasma derived polyterpenol thin films. Polym. Degrad. Stab. 95(6), 1123 (2010).CrossRefGoogle Scholar