Browse > Article
http://dx.doi.org/10.6117/kmeps.2017.24.4.079

Properties of Organic-Inorganic Protective Films on Flexible Plastic Substrates by Spray Coating Method  

Lee, Sang Hee (Department of Electronics and Electrical Engineering, Dankook University)
Chang, Ho Jung (Department of Electronics and Electrical Engineering, Dankook University)
Publication Information
Journal of the Microelectronics and Packaging Society / v.24, no.4, 2017 , pp. 79-84 More about this Journal
Abstract
The solar cells should be protected from the moisture and oxygen in order to sustain the properties and reliability of the devices. In this research, we prepared the protection films on the flexible plastic substrates by spray coating method using organic-inorganic hybrid solutions. The protection characteristics were studied depending on the various process conditions (nozzle distance, thicknesses of the coatings, film structures). The organic-inorganic solutions for the protection film layer were synthesized by addition of $Al_2O_3$ ($P.S+Al_2O_3$) and $SiO_2$ ($P.S+SiO_2$) nano-powders into PVA (polyvinyl alcohol) and SA (sodium alginate) (P.S) organic solution. The optical transmittances of the protection film with the thicknesses of $5{\mu}m$ showed 91%. The optical transmittance decreased from 81.6% to 73.6% with the film thickness increased from $78{\mu}m$ to $178{\mu}m$. In addition, the protective films were prepared on the PEN (polyethylene naphthalate), PC (polycarbonate) single plastic substrates as well as the Acrylate film coated on PC substrate (Acrylate film/PC double layer), and $Al_2O_3$ film coated on PEN substrate ($Al_2O_3$ film/PEN double layer) using the $P.S+Al_2O_3$ organic-inorganic hybrid solutions. The optimum protection film structure was studied by means of the measurements of water vapor transmittance rate (WVTR) and surface morphology. The protective film on PEN/$Al_2O_3$ double layer substrate showed the best water protective property, indicating the WVTR value of $0.004gm/m^2-day$.
Keywords
organic-inorganic hybrid solution; protection film; spray coating; PVA; $Al_2O_3$; WVTR;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 K. H. Shin, T. Y. Kwak, and S. H. Rhim, "Laminator Manufacturing and Process Optimization for Solar Cell Module Manufacturing", Journal of Mechanical Science and Technology, 157 (2011).
2 S. H. Lee, B. M. Park, K. H. Kim, Y. C. Chang, J. H. Pyee, and H. J. Chang, "Effects of Passivation Thin Films by Spray Coatings on Properties of Flexible CIGS Solar Cells", J. Microelectron. Packag. Soc., 23(3), 1 (2016).
3 A. I. Khan, and D. O'Hare, "Intercalation chemistry of layered double hydroxides: recent developments and applications", J. Mater. Chem., 12(11), 3191 (2002).   DOI
4 H. Kopka, K. Beneke, and G. Lagaly, "Anionic surfactants between double metal hydroxide layers", J. Colloid Interface Sci., 123(2), 427 (1988).   DOI
5 V. Laget, C. Hornick, P. Rabu, and M. Drillon, "Hybrid organic-inorganic layered compounds prepared by anion exchange reaction: correlation between structure and magnetic properties", J. Mater. Chem., 9(1), 169 (1999).   DOI
6 K. H. Kim, and J. H. Yun, "Research Trends and Mid-&Long-term Development Directions of Cu(In,Ga)Se2 Solar Cells", Korean Industrial Chemistry News, 20(2), 1 (2017).
7 J. H. Yoo, and H. J. Chang, "Preparation of Polymer Light Emitting Diodes with PFO-poss Organic Emission Layer on ITO/Glass Substrates", J. Microelectron. Packag. Soc., 13(4), 51 (2006).
8 B. M. Park, and H. J. Chang, "Preparation of Characterization of White Phosphorescence Polymer Light Emitting Diodes Using PFO:Ir(ppy)3:MDMO-PPV Emission Layer", J. Microelectron. Packag. Soc., 18(4), 79 (2011).
9 J. S. Lewi, and M. S. Weaver, "Thin-Film Permeation Barrier Technology for Flexible Organic Light-Emitting Devices", IEEE Journal of Selected Topics in Quantum Electronics, 10(1), 45 (2004).   DOI
10 M. A. McCarthy, B. Liu, E. P. Donoghue, I. Kravchenko, D. Y. Kim, F. So, and A. G. Rinzler, "Low-Voltage, Low-Power, Organic Light Emitting Transistors for Active matrix Displays", Science, 332, 570 (2011).   DOI
11 Y. W. Park, H. J. Choi, J. H. Choi, T. H. Park, J. W. Jeong, E. H. Song, and B. K. Ju, "Enhanced Power Efficiency of Organic Light-Emitting Diodes using Pentacene on CF4-Plasma-Treated Indium Tin Oxide Anodes", IEEE. Electr. Device. L., 33, 1156 (2012).   DOI
12 S. C. Mun, S. H. Lee, B. M. Park, J. H. Pyee, and H. J. Chang, "Effects of Passivation Thin Films on the Optical Properties of the Green Organic Light Emitting Diodes", J. Microelectron. Packag. Soc., 23(1), 11 (2016)   DOI
13 S. H. Lee, B. M. Park, Y. G. Jo, J. H. Pyee, and H. J. Chang, "Effects of Organic Passivation Films on Properties of Polymer Solar Cells with P3HT:PC61BM Active Layers", J. Microelectron. Packag. Soc., 21(4), 105 (2014).   DOI
14 S. Kim, H. J. Kwon, S. Lee, H. Shim, Y. Chun, W. Choi, J. Kwack. D. Han, M. S. Song, S. Kim, S. Mohammadi, I. S. Kee, and S. Y. Lee, "Low-Power Flexible Organic Light-Emitting Diode Display Device", Adv. Mater., 23, 3511 (2011).   DOI
15 G. H. Kim, J. Oh, Y. S. Yang, M. Do, and K. S. Suh, "Encapsulation of organic light-emitting devices by mean of photo polymerized polyacrylate films", Polymer, 45, 1879 (2004).   DOI
16 J. Jin, J. J. Lee, B. S. Bae, S. J. Park, S. Yoo, and K. H. Jung, "Silica nanoparticle-embedded sol-gel organic/inorganic hybrid nanocomposite for transparent OLED encapsulation", Org. Electron., 13, 53 (2012).   DOI
17 K. S. Kim, G. H. Kang, and G. J. Yu, "Analysis of Optical Characteristics of Transparent Glasses for PV and Glass-Glass Module Application", Journal of the Korean Solar Energy Society, 28(5), 8 (2008).