The effect of structural properties of Cu2Se/polyvinylcarbazole nanocomposites on the performance of hybrid solar cells

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dc.contributor.author Govindraju, S.
dc.contributor.author Ntholeng, N.
dc.contributor.author Ranganathan, K.
dc.contributor.author Sikhwivhilu, L.M.
dc.contributor.author Moloto, N.
dc.contributor.author Moloto, M.J.
dc.date.accessioned 2016-11-22T11:02:35Z
dc.date.available 2016-11-22T11:02:35Z
dc.date.issued 2016
dc.identifier.citation Govindraju, S. et al. 2016. The effect of structural properties of Cu2Se/polyvinylcarbazole nanocomposites on the performance of hybrid solar cells. Journal of Nanomaterials, Article number 9592189. en_ZA
dc.identifier.issn 1687-4110 (Print)
dc.identifier.issn 1687-4129 (Online)
dc.identifier.uri http://hdl.handle.net/10539/21469
dc.description.abstract It has been said that substitution of fullerenes with semiconductor nanocrystals in bulk heterojunction solar cells can potentially increase the power conversion efficiencies (PCE) of these devices far beyond the 10% mark. However new semiconductor nanocrystals other than the potentially toxic CdSe and PbS are necessary. Herein we report on the synthesis of Cu2Se nanocrystals and their incorporation into polyvinylcarbazole (PVK) to form polymer nanocomposites for use as active layers in hybrid solar cells. Nearly monodispersed 4 nm Cu2Se nanocrystals were synthesized using the conventional colloidal synthesis. Varying weight % of these nanocrystals was added to PVK to form polymer nanocomposites. The 10% polymer nanocomposite showed retention of the properties of the pure polymer whilst the 50% resulted in a complete breakdown of the polymeric structure as evident from the FTIR, TGA, and SEM. The lack of transport channels in the 50% polymer nanocomposite solar cell resulted in a device with no photoresponse whilst the 10% polymer nanocomposite resulted in a device with an open circuit voltage of 0.50 V, a short circuit current of 7.34 mA/cm2, and a fill factor of 22.28% resulting in a PCE of 1.02%. en_ZA
dc.language.iso en en_ZA
dc.publisher Hindawi Publishing Corporation en_ZA
dc.rights Copyright © 2016 S. Govindraju et al.This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. en_ZA
dc.subject Solar cells en_ZA
dc.subject Heterojunctions en_ZA
dc.subject Nanocomposites en_ZA
dc.subject Nanocrystals en_ZA
dc.subject Open circuit voltage en_ZA
dc.subject Polymer solar cells en_ZA
dc.subject Polymers en_ZA
dc.subject Semiconducting selenium compounds en_ZA
dc.subject Semiconductor devices en_ZA
dc.subject Bulk heterojunction solar cells en_ZA
dc.subject Colloidal synthesis en_ZA
dc.subject Hybrid solar cells en_ZA
dc.subject Polymer nanocomposite en_ZA
dc.subject Polymeric structures en_ZA
dc.subject Polyvinylcarbazole en_ZA
dc.subject Power conversion efficiencies en_ZA
dc.subject Semiconductor nanocrystals en_ZA
dc.title The effect of structural properties of Cu2Se/polyvinylcarbazole nanocomposites on the performance of hybrid solar cells en_ZA
dc.type Article en_ZA
dc.journal.title Journal of Nanomaterials en_ZA
dc.description.librarian SP2016 en_ZA
dc.citation.doi 10.1155/2016/9592189 en_ZA


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