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http://dx.doi.org/10.5573/JSTS.2008.8.1.046

Effect of Physicochemical Properties of Solvents on Microstructure of Conducting Polymer Film for Non-Volatile Polymer Memory  

Paik, Un-Gyu (Division of Advanced Materials Science and Engineering, Hanyang University)
Lee, Sang-Kyu (Division of Advanced Materials Science and Engineering, Hanyang University)
Park, Jea-Gun (Nano-SOI Process Laboratory, Hanyang University)
Publication Information
JSTS:Journal of Semiconductor Technology and Science / v.8, no.1, 2008 , pp. 46-50 More about this Journal
Abstract
The effect of physicochemical properties of solvents on the microstructure of polyvinyl carbazole (PVK) film for non-volatile polymer memory was investigated. For the solubilization of PVK molecules and the preparation of PVK films, four solvents with different physicochemical properties of the Hildebrand solubility parameter and vapor pressure were considered: chloroform, tetrahydrofuran (THF), 1,1,2,2-tetrachloroethane (TCE), and N,N-dimehtylformamide (DMF). The solubility of PVK molecules in the solvents was observed by ultravioletvisible spectroscopy. PVK molecules were observed to be more soluble in chloroform, with a low Hildebrand solubility parameter, than solvents with higher values. The aggregated size and micro-/nano-topographical properties of PVK films were characterized using optical and atomic force microscopes. The PVK film cast from chloroform exhibited enhanced surface roughness compared to that from TCE and DMF. It was also confirmed that the microstructure of PVK film has an effect on the performance of non-volatile polymer memory.
Keywords
Non-volatile polymer memory; conducting polymer; solvent; solubility; microstructure; Hildebrand solubility parameter; vapor pressure;
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1 L. D. Bozano, B. W. Kean, M. Beinhoff, K. R. Carter, P. M. Rice, and J. C. Scott, 'Organic materials and thin-film structures for cross-point memory cells based on trapping in metallic nanoparticles,' Advanced Functional Materials, vol. 15, pp. 1933-1939, 2005   DOI   ScienceOn
2 R. J. Tseng, J. Huang, J. Ouyang, R. B. Kaner, and Y. Yang, 'Polyaniline nanofiber/gold nanoparticle nonvolatile memory,' Nano Letters, vol. 5, pp. 1077-1079, 2005   DOI   ScienceOn
3 J. Liu, Y. Shi, and Y. Yang, 'Solvation-induced morphology effects on the performance of polymer-based photovoltaic devices,' Advanced Functional Materials, vol. 11, pp. 420-424, 2001   DOI   ScienceOn
4 S.-C. Luo, V. Craciun, and E. P. Douglas, 'Instabilities during the formation of electroactive polymer thin films,' Langmuir, vol. 21, pp. 2881-2886, 2005   DOI   ScienceOn
5 Y. Yang, J. Ouyang, L. Ma, R. J.-H. Tseng, and C.-W. Chu, 'Electrical switching and bistability in organic/polymeric thin films and memory devices,' Advanced Functional Materials, vol. 16, 1001-1014, 2006   DOI   ScienceOn
6 J. Wu, L. Ma, and Y. Yang, 'Single-band Hubbard model for the transport properties in bistable organic/metal nanoparticle/organic devices,' Physical Review B, vol. 69, pp. 115321-1-9, 2004   DOI   ScienceOn
7 J. Ouyang, C.-W. Chu, C. R. Szmanda, L. Ma, and Y. Yang, 'Programmable polymer thin film and non-volatile memory device,' Nature Materials, vol. 3, pp. 918-922, 2004   DOI   ScienceOn
8 K. E. Strawhecker, S. K. Kumar, J. F. Douglas, and A. Karim, 'The critical role of solvent evaporation on the roughness of spin-cast polymer films,' Macromolecules, vol. 34, pp. 4669-4672, 2001   DOI   ScienceOn
9 D. R. Linde, CRC Handbook of Chemistry and Physics. 83th ed., 2002, New York, CRC Press Inc
10 J. Liu, T.-F. Guo, Y. Shi, and Y. Yang, 'Solvation induced morphological effects on the polymer/metal contacts,' Journal of Applied Physics, vol. 89, pp. 3668-3673, 2001   DOI   ScienceOn
11 C. M. Hansen, Hansen solubility parameter. 2000, New York, CRC Press Inc
12 O. Ozen and R. Narayanan, 'Comparison of evaporative instability with marangoni instability,' Industrial & Engineering Chemistry Research, vol. 44, pp. 1342-1348, 2005   DOI   ScienceOn
13 C. W. Chu, J.-H. Tseng, and Y. Yang, 'Organic donor-acceptor system exhibiting electrical bistability for use in memory devices,' Advanced Materials, vol. 17, pp. 1440-1443, 2005   DOI   ScienceOn