| 초록 |
Recently, luminescent solar concentrators (LSCs) have gained considerable attention for their application as building-integrated photovoltaic devices (BIPV). LSCs consist of semi-transparent waveguide coated or doped with fluorophores that absorb incident sunlight and re-emit photons with longer wavelength to the solar cells attached at the edge of the device. In this study, we present electrospun nanofibers decorated with in-situ crystallized perovskite nanocrystals (PeNCs) as a novel form of LSC. By encapsulating the as-spun PeNC/polymer composite nanofibers with Poly (methyl methacrylate) (PMMA), the haze property was significantly suppressed. Photoluminescence (PL) analysis showed that the emission peak red-shifted, resulting in improved Stokes shift with PMMA passivation. Moreover, edge PL emission intensity enhanced due to decreased self-absorption loss of the guided photons. The power conversion efficiency of the 5cm x 5cm device was found to be 2.15 % under 1 sun illumination. |
