The enhanced efficiency to 3.6% based on organic dye as donor andSi/TiO2acceptor bulk hetero-junction solar cells

Al-Sehemi, Abdullah and Irfan, Ahmad and Al-Melfi, Mohrah and Al-Ghamdi, Ahmed and Shalaan, E (2014) The enhanced efficiency to 3.6% based on organic dye as donor andSi/TiO2acceptor bulk hetero-junction solar cells. Journal of Photochemistry and Photobiology A: Chemistry, 292. pp. 1-9.

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Abstract

The efficient organic dyes 2-{4-[2-(2-hydroxybenzylidene)hydrazino]phenyl}ethylene-1,1,2-tricarbonitrile and 2-{4-[2-(4-hydroxybenzylidene)hydrazino]phenyl}ethylene-1,1,2-tricarbonitrilehave been synthesized, characterized and fabricated as hetero-junction solar cell materials. We useB3LYP/6-31G*, B3LYP/6-31G** and HF/6-31G** level of theories to optimize the ground state geometries.The absorption wavelengths have been computed by using time dependent density functional theorywhich is in good agreement with the experimental data. The hetero-junction solar cell devices have beenfabricated by organic–inorganic heterojunction (dye/Si/TiO2) and measured the efficiency by applyingthe incident power 30, 50 and 70 mW/cm2. The maximum efficiency 3.6% for dye2 has been observed.We shed light on the electronic and charge transport properties. Moreover, the stability and externalquantum efficiencies have been measured.

Item Type: Article
Subjects: Chemistry
Divisions: Female College of Sciences and Arts - Sarat Ubeida > Chemistry
Depositing User: MOHRAH AL-QHTANI
Date Deposited: 22 Nov 2015 16:36
Last Modified: 22 Nov 2015 16:36
URI: http://eprints.kku.edu.sa/id/eprint/199

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