Plasmonic effects of quantum size gold nanoparticles on dye-sensitized solar cell

Jun, H.K. and Careem, M.A. and Arof, Abdul Kariem (2015) Plasmonic effects of quantum size gold nanoparticles on dye-sensitized solar cell. In: 5th International Conference on Functional Materials & Devices (ICFMD 2015), 4th - 6th August 2015, New York Hotel, Johor Bahru.

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Surface plasmonic resonance is the efTect of electron oscillation in a structure stimulated by incident light. When noble materials such as Au or Ag are added into the titania structure of the sensitized solar cell, the plasmonic effect of such materials will result an improved performance of the device. Different size of plasmonic materials will produce a variety of result. Here we demonstrated the effect of extremely small size of Au nanoparticles on the performance of dye-sensitized solar cell (DSSC). In this work, Au nanoparticles with average diameter of 5 nm were mixed into commercial Ti02 powders (average diameter 25 nm) for the fabrication of photoanode. Commercial N749 dye (black dye) was used as the sensitizer in a sandwich-type DSSC. The small size of Au nanoparticles is thought to be responsible for the plasmon resonance shift to higher energy. Inclusion of 5-nm Au nanoparticles in the titania has increased the efficiency by 50% compared to that without Au nanoparticles. The improvement was analyzed using data acquired from electrochemical impedance spectroscopy (EIS) measurements.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Gold nanoparticJes, Plasmonic, Dye-sensitized solar cell, Electrochemical impedance spectroscopy
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science
Depositing User: Mr. Mohd Safri
Date Deposited: 16 Jun 2016 00:12
Last Modified: 11 Mar 2019 08:37

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