Efficiency enhancement of the poly-silicon solar cell using self-assembled dielectric nanoparticles

C. K. Huang, H. H. Lin, J. Y. Chen, Kien-Wen Sun, W. L. Chang

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


In this study, silica nanospheres dispersed in a surfactant solution were spin-coated on commercially available silicon solar cells to form colloidal crystals on the surface. This self-assembled nanoparticle layer served as an anti-reflection (AR) layer for solar cell devices. The self-assembled layer exhibits excellent anti-reflection properties in the UV and NIR wavelength regions, and the reflectance spectra match the theoretical prediction done using the rigorous coupled-wave analysis model. We also showed that the overall conversion efficiency of polycrystalline Si solar cells coated with the silica nanospheres was increased from 11% to 12.3% when using optimized spin-coating parameters and nanoparticle concentrations.

Original languageEnglish
Pages (from-to)2540-2544
Number of pages5
JournalSolar Energy Materials and Solar Cells
Issue number8
StatePublished - 1 Aug 2011


  • Anti-reflection
  • External quantum efficiency
  • Nanoparticle
  • Solar cell


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