Publication: Gamma radiation induced nickel oxide/reduced graphene oxide nanoflowers for improved dye-sensitized solar cells
Date
2018
Authors
Abdullah H.
Lye S.Y.
Mahalingam S.
Asshari I.
Yuliarto B.
Manap A.
Journal Title
Journal ISSN
Volume Title
Publisher
Springer New York LLC
Abstract
Gamma radiation (?) exposure was used in dye-sensitised solar cell application to improve the power conversion efficiency. Nickel oxide/reduced graphene oxide (NiO/rGO) as the photoanode layer was prepared by chemical bath deposition method. The NiO/rGO samples were used as the control to analyse the NiO/rGO exposed to ? (NiO/rGO-?). XRD, FESEM and UV�Vis measurement were conducted to study the structure, morphology and the optical analysis of the samples. NiO/rGO-? nanoflowers were observed through FESEM images with improved morphology. The porosity of the thin films was also increased after the exposure of ? radiation. The increased energy band gap of NiO/rGO-? annealed at 400��C exhibited higher power conversion efficiency of 1.03% with Jsc, Voc anf FF of 29�mA/cm2, 0.15 and 0.3�V, respectively. � 2018, Springer Science+Business Media, LLC, part of Springer Nature.
Description
Conversion efficiency; Dye-sensitized solar cells; Energy gap; Gamma rays; Graphene; Image enhancement; Nanoflowers; Solar cells; Chemical bath deposition methods; Exposed to; Optical analysis; Photo-anodes; Power conversion efficiencies; Radiation-induced; Nickel oxide