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Effect of nickel in TiO2-SiO2-GO-based DSSC by using a sol-gel method
Ahmad M.a, Abdullah H.a, Yuliarto B.b
a Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, 43600, Malaysia
b Advanced Functionals Materials Laboratory, Engineering Physics Department, Institut Teknologi Bandung, Bandung, 40132, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2018, Springer-Verlag GmbH Germany, part of Springer Nature.A series of dye-sensitized solar cell (DSSC) TiO2-(SiO2)100-xNix-GO (TSN) (x = 0.0, 2.5, 5.0, 7.5) films were successfully prepared using a sol-gel method via doctor-blade technique. Tetraethyl-orthosilicate (TEOS), absolute ethanol (C2H5OH), deionized water, and acid ammonia were mixed in one solution. Nickel (II) nitrate hexahydrate (Ni(NO3)2.6H2O) and diethanolamine were added to the prepared solution to produce the precursor of (SiO2)100-xNix. This work is to determine the influence of Ni2+ in the TiO2-SiO2-GO-based DSSC performances. The films were prepared by SiO2 amorphous without Ni2+ and added with Ni2+ at 2.5, 5.0, and 7.5%, respectively. The crystal structure and morphology properties of the films were analyzed using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and energy dispersion X-ray. FESEM images showed the amount of Ni2+ was found to increase the grain growth of TSN2.5 and TSN7.5 films ranging from 30.14 to 40.19 nm and 48.01 to 77.04 nm, respectively. The structural characteristics of TiO2-(SiO2)100-xNix-GO are confirmed as anatase phase and belong to TiO2 with a characteristic peak of (101) as a predominant peak. The photovoltaic performances were analyzed using J–V measurement and electrochemical impedance spectroscopy (EIS) to determine the factors that influence the performance of the DSSCs. Hence, this study suggests that the TSN7.5 films exhibited the highest cell performance, presenting a Jsc, Voc, FF, and cell efficiency of 20.52 mA/cm2, 0.230 V, 0.391, and 1.843%, respectively. TiO2-(SiO2)100-xNix-GO doped with 7.5% Ni provide larger diffusion rate, low recombination effect, and longer electron lifetime, thus enhancing the performance of DSSCs.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Characteristic peaks,Crystal structure and morphology,Doctor blade technique,Field emission scanning electron microscopy,Photovoltaic performance,Structural characteristics,Tetraethyl orthosilicates,TiO2-SiO2[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Dye-sensitized solar cells (DSSCs),Graphene oxide (GO) and titanium dioxide-silica dioxide (TiO2-SiO2),Nickel,Sol-gel[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]Funding information This work is supported by Project No.: UKM-DIP-2016-021 and Photonics Technology Laboratory (IMEN), Department of Electrical, Electronic & Systems Engineering, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1007/s11581-018-2469-7[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]