Enhancement of TiO2 Particles Based-Solar Cells Efficiency by Addition of Copper(II) Nitrate and Post-Treatment with Sodium Hydroxyde

Mamat Rokhmat; Edy Wibowo; Sutisna Sutisna; Elfi Yuliza; Khairurrijal Khairurrijal; Mikrajuddin Abdullah

doi:10.4028/www.scientific.net/AMR.1112.245

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1112Enhancement of TiO2 Particles Based-Solar Cells...

Enhancement of TiO₂ Particles Based-Solar Cells Efficiency by Addition of Copper(II) Nitrate and Post-Treatment with Sodium Hydroxyde

Abstract:

Efficiency enhancement of solar cells employing TiO₂ as the active material has been successfully done by addition of copper(II) nitrate trihydrate (Cu(NO₃)₂.3H₂O) in the TiO₂ dispersant, and post-treatment with sodium hydroxide (NaOH) after electroplating of copper particles at spaces inside the TiO₂ film. Homogeneously mix of TiO₂ particles in the solution of Cu(NO₃)₂.3H₂O was deposited on a transparent conducting electrode using a spray method. To reduce electron-hole recombination, copper particles were deposited on the space between TiO₂ particles by electroplating. A sample of solar cell was made by sandwiching a polymer electrolyte between the film and a counter electrode. Copper(II) nitrate trihydrate of 1.4 wt% and 5 volt electroplating voltage are able to produce an optimum power conversion efficiency of 0.35% with a fill factor of 0.31. To achieve higher efficiency, post treatment with NaOH was performed to increase the ionic transfer ability in electrolyte and we observed efficiency up to 1.24% with a fill factor of 0.34.

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Periodical:

Advanced Materials Research (Volume 1112)

Pages:

245-250

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1112.245

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Online since:

July 2015

Authors:

Mamat Rokhmat, Edy Wibowo, Sutisna Sutisna, Elfi Yuliza, Khairurrijal Khairurrijal, Mikrajuddin Abdullah*

Keywords:

Electroplating, NaOH Post Treatment, Solar Cell, Spray, TiO₂

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