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http://dx.doi.org/10.7317/pk.2013.37.5.656

Manufacturing of Flexible Patterned Cover Film for Solar Cell by Solution Coating  

Park, Chanwook (Center for Photofunctional Energy Materials, Dept. of Polymer Science and Engineering, Dankook University)
Kang, Ho-Jong (Center for Photofunctional Energy Materials, Dept. of Polymer Science and Engineering, Dankook University)
Publication Information
Polymer(Korea) / v.37, no.5, 2013 , pp. 656-662 More about this Journal
Abstract
The flexible patterned cover film was made by a simple solution coating process using polymethyl methacrylate (PMMA) solution with glass beads. The effect of patterned cover film on the efficiency of solar cell has been investigated. It was found that the relative solar cell efficiency increased up to 3.4% with the incident light angle between $0-90^{\circ}$ by the sphere shape of glass bead coated on the film surface. This was understood that the loss of transmittance and scattering due to the light directional dependency on solar cell were minimized because the light entered glass beads normal to its surface regardless of incident light angle. The maximum relative solar cell efficiency was achieved when glass bead shape on the film is hemisphere and the relative efficiency increased with increasing the amount of glass bead on the film surface. However, too much glass beads on the film surface resulted in the lower relative solar cell efficiency due to the lowering of transmittance as well as the occurring of light interference.
Keywords
solar cell efficiency; patterned film; glass bead; transmittance; reflection; scattering;
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