Synthesis and Characterization of MgO by Microwave-Assisted Thermal Oxidation for Dye-Sensitized Solar Cells

Sanpet Nilphai; Meechai Thepnurat; Niyom Hongsith; Pipat Ruankham; Surachet Phadungdhitidhada; Atcharawan Gardchareon; Duangmanee Wongratanaphisan; Supab Choopun

doi:10.4028/www.scientific.net/KEM.675-676.158

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 675-676Synthesis and Characterization of MgO by...

Synthesis and Characterization of MgO by Microwave-Assisted Thermal Oxidation for Dye-Sensitized Solar Cells

Abstract:

Magnesium oxide (MgO) nanostructures were synthesized by microwave-assisted thermal oxidation at various amount of activated carbon additive. The MgO nanostructures were characterized by scanning electron microscopy (SEM), Transmission electron microscopy (TEM), X-ray diffractrometry (XRD) and UV-Visible spectroscopy, respectivly. It was observed that, the obtained MgO have nanocube shape. The MgO nanostructures were applied as a blocking layer in ZnO dye-sensitized solar cells (DSSC). The photovoltage, photocurrent, and power conversion efficiency characteristics of DSSCs were measured under illumination of simulated sunlight obtained from a solar simulator with the radiant power of 100 mW/cm². The DSSCs with MgO layer exhibited higher current density, open circuit voltage and photoconversion efficiency than those without MgO layer The optimum power conversion efficiency (PCE) was 2.49 % with short circuit current (J_sc) of 6.61 mA/cm², the open circuit voltage (V_oc) of 0.66 V and the fill factor (FF) of 0.59, respectively.

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Periodical:

Key Engineering Materials (Volumes 675-676)

Pages:

158-162

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.675-676.158

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Online since:

January 2016

Authors:

Sanpet Nilphai, Meechai Thepnurat, Niyom Hongsith, Pipat Ruankham, Surachet Phadungdhitidhada, Atcharawan Gardchareon, Duangmanee Wongratanaphisan, Supab Choopun*

Keywords:

Dye-Sensitized Solar Cell, Magnesium Oxide, Nanostructures, Thermal Oxidation

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