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Cadmium sulfide interface layer for improving the performance of titanium dioxide/poly (3-hexylthiophene) solar cells by extending the spectral response

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dc.contributor.author Thanihaichelvan, M.
dc.contributor.author Sockiah, K.
dc.contributor.author Balashangar, K.
dc.contributor.author Ravirajan, P.
dc.date.accessioned 2017-10-23T08:54:26Z
dc.date.accessioned 2022-07-11T09:44:26Z
dc.date.available 2017-10-23T08:54:26Z
dc.date.available 2022-07-11T09:44:26Z
dc.date.issued 2015-06
dc.identifier.issn 09574522
dc.identifier.uri http://repo.lib.jfn.ac.lk/ujrr/handle/123456789/1071
dc.description.abstract This work focused on studying the effect of cadmium sulfide (CdS) interfacial layer on the performance of titanium dioxide (TiO2)/poly (3-hexylthiophene) (P3HT) solar cells and finding out its effect on charge recombination dynamics of hybrid TiO2/P3HT solar cells. FESEM images confirm the uniform distribution of chemical bath deposited CdS layer on TiO2 nanoparticles. Insertion of CdS layer at the nanocrystalline TiO2/P3HT interface broadens quantum efficiency spectrum of the solar cells with peak values over 80 and 40 % at the wavelengths of maximum absorption of CdS and P3HT respectively and hence enhances short-circuit current density (JSC) from 3.5 to 5.9 mAcm−2 under simulated illumination (70 mWcm−2) with an AM 1.5 filter. CdS layer further improves open circuit voltage (VOC) from 0.35 to 0.57 V, which is consistent with higher built-in voltage in CdS/P3HT than in TiO2/P3HT due to relatively lower laying conduction band edge of CdS. Photovoltaic transient measurements show that the carrier life-time in TiO2/CdS/P3HT solar cell is an order of magnitude longer than that in TiO2/P3HT solar cell. Optimized TiO2/P3HT solar cells with CdS interlayer yield power conversion efficiencies over 1.5 %, which is three times greater than that for similar solar cells without CdS layer. © 2015, Springer Science+Business Media New York. en_US
dc.language.iso en_US en_US
dc.publisher Journal of Materials Science: Materials in Electronics en_US
dc.subject Absorption spectroscopy en_US
dc.subject Charge recombinations en_US
dc.title Cadmium sulfide interface layer for improving the performance of titanium dioxide/poly (3-hexylthiophene) solar cells by extending the spectral response en_US
dc.type Article en_US


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