20-22 May 2015
Asia/Bangkok timezone
The Centennial Celebration of General Relativity Theory and 80 Years of Thai Physics Graduate

Fabrication of CsSnI$_{1-x}$F$_x$ Doped with ZnO for Photogenerated Holes in Solid-state Dye-sensitized Solar Cells

21 May 2015, 13:00
3h 30m
Board: MNA-46
Poster presentation Material Physics, Nanoscale Physics and Nanotechnology Poster-3

Speaker

Ms Pornpanarat Ardchongthong (Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002)

Description

CsSnI${}_{1-x}$F${}_x$ doped ZnO were synthesized and used as the hole conducting in dye-sensitized solar cells (DSCs). The aim of this work is to study the effect of ZnO on the solid-stat DSC performances. CsSnI${}_3$ powders were prepared by heating a stoichiometric mixture of CsI (0.1 g) and SnI${}_2$ (0.07 g) at 450 ${}^{\circ}$C for 30 min in argon environment. CsSnI${}_{1-x}$F${}_x$ solution were prepared by mixing 0.1 g of CsSnI${}_3$ powder and 0.005 g of SnF${}_2$ into 3 ml of N,N-dimethylformamide and acetonitrile. CsSnI${}_{1-x}$F${}_x$ doped ZnO were prepared by adding ZnO (0.005 - 0.025 g) into the 3 ml CsSnI${}_3$ solution. The energy conversion efficiency of CsSnI${}_{1-x}$F${}_x$ doped ZnO solid state dye-sensitized solar cells (SSDSCs) were evaluated by a solar simulator (PEC-L11) under a light intensity of 100 mW/cm${}^2$. The efficiency of CsSnI${}_{1-x}$F${}_x$ doped ZnO SSDSCs are about 2.24%, 2.68%, 2.91%, 3.09%, 2.88% and 2.66% for 0.0 g (undoped ZnO), 0.005 g, 0.010 g, 0.015 g, 0.020 g and 0.025 g of ZnO, respectively. The detail effect of ZnO nanoparticles with the average size of 30 nm on the SSDSCs performance will be characterized by X-ray diffraction, scanning electron microscopy and UV-VIS spectroscopy.

Primary author

Ms Pornpanarat Ardchongthong (Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002)

Co-authors

Dr Pawinee klangtakai (Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002) Dr Samuk PIMANPANG (Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002) Dr Vittaya Amornkitbamrung (Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002)

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