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Enhanced power conversion efficiency of dye-sensitized solar cells assisted with phosphor materials

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Abstract

Theoretically dye-sensitized solar cells (DSSCs) are high efficiency solar cells. However, DSSCs have lower power conversion efficiency (PCE) than silicon based solar cells. In this study, we use scattering layer and phosphor materials, such as ZrO2 and Zn2SiO4:Mn (Green), to enhance the PCE of DSSCs. The scattering layer and phosphor materials were prepared and used as an effective scattering layer on the transparent TiO2 photoelectrode through the doctor blade method. We confirmed that the scattering layer improves the PCE and J sc due to the enhancement of light harvesting by increasing the scattering and absorbance in the visible range. Under sun illumination AM 1.5 conditions, the PCE of the mesoporous TiO2 based DSSCs was 5.18%. The PCE of the DSSCs with ZrO2 scattering layer was 5.61% and Zn2SiO4:Mn as the scattering layer was enhanced to 5.72%. In order to compare the change in optical properties, DSSCs were measured by EQE, reflectance and PCE. At the same time, FE-SEM and XRD were used to confirm the structural changes in each layer.

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Authors and Affiliations

  1. Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Korea

    Yong-Min Lee, Dong In Kim, Ki-Hwan Hwang & Jin-Hyo Boo

  2. Institute of Basic Science, Sungkyunkwan University, Suwon, 16419, Korea

    Ki-Hwan Hwang, Sang Hun Nam & Jin-Hyo Boo

Authors
  1. Yong-Min Lee
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  2. Dong In Kim
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  3. Ki-Hwan Hwang
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  4. Sang Hun Nam
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  5. Jin-Hyo Boo
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Correspondence to Jin-Hyo Boo.

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Lee, YM., Kim, D.I., Hwang, KH. et al. Enhanced power conversion efficiency of dye-sensitized solar cells assisted with phosphor materials. Electron. Mater. Lett. 12, 512–516 (2016). https://doi.org/10.1007/s13391-016-4015-y

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  • DOI: https://doi.org/10.1007/s13391-016-4015-y

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