, Volume 25, Issue 12, pp 6035–6042 | Cite as

Synthesis, characterization, and dye-sensitized solar cell fabrication using potato starch– and potato starch nanocrystal–based gel electrolytes

  • Yogananda K.C
  • Easwaramoorthi Ramasamy
  • Vasantha Kumar S
  • Dinesh RangappaEmail author
Original Paper


Potato starch (PS) and potato starch nanocrystals (PSN) were synthesized and characterized. The crystallinity of PS and PSN was studied by using the X-ray diffraction (XRD) technique. Thermal properties of PS and their corresponding nanocrystal (PSN) were characterized by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). PS and PSN were used to prepare gel polymer electrolytes. Potato starch gel electrolyte (PSGE) and potato starch nanocrystal gel electrolytes (PSNGE) were prepared using low cost, environmental friendly solvent dimethyl sulfoxide (DMSO). Impedance spectroscopy was carried out to determine the ionic conductivity of the PSGE and PSNGEs. PSNGE shows the optimal higher conductivity of 0.38 × 10−8S/cm compared with PSGE electrolyte (0.29 × 10−8 S/cm). PSGE and PSNGE were used as electrolytes for the fabrication of dye-sensitized solar cells (DSSCs). PSNGE-based DSSC show higher conversion efficiency of 3.33% compared with PSGE-based DSSC (2.94%).


Dye-sensitized solar cell Potato starch Potato starch nanocrystal Impedance spectroscopy Gel electrolyte 



The authors are thankful to the Indian Nanoelectronics User Program (INUP), IISc, Bengaluru, for their characterization support.

Funding information

This work was supported by the Vision Group of Science & Technology (VGST), Karnataka.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Yogananda K.C
    • 1
  • Easwaramoorthi Ramasamy
    • 2
  • Vasantha Kumar S
    • 3
  • Dinesh Rangappa
    • 1
    Email author
  1. 1.Department of Nanotechnology and Visvesvaraya Centre for Nanoscience & Technology, Bangalore regionVisvesvaraya Technological UniversityChikkaballapuraIndia
  2. 2.International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI)HyderabadIndia
  3. 3.Defence Food Research Laboratory (DFRL)MysuruIndia

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