Low-Cost and Efficient Nickel Nitroprusside/Graphene Nanohybrid Electrocatalysts as Counter Electrodes for Dye-Sensitized Solar Cells

Novel nickel nitroprusside (NNP) nanoparticles with incorporated graphene nanoplatelets (NNP/GnP) were used for the first time as a low-cost and effective counter electrode (CE) for dye-sensitized solar cells (DSSCs). NNP was synthesized at a low-temperature (25 °C) solution process with suitable pu...

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Autor principal:	Md. Mahbubur Rahman
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	graphene nickel pentacyanonitrosylferrate chemical synthesis electrocatalytic counter electrode solar cells Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/c29204c93381462991916bf4a3cc04d5
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spelling	oai:doaj.org-article:c29204c93381462991916bf4a3cc04d52021-11-11T18:07:07ZLow-Cost and Efficient Nickel Nitroprusside/Graphene Nanohybrid Electrocatalysts as Counter Electrodes for Dye-Sensitized Solar Cells10.3390/ma142165631996-1944https://doaj.org/article/c29204c93381462991916bf4a3cc04d52021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6563https://doaj.org/toc/1996-1944Novel nickel nitroprusside (NNP) nanoparticles with incorporated graphene nanoplatelets (NNP/GnP) were used for the first time as a low-cost and effective counter electrode (CE) for dye-sensitized solar cells (DSSCs). NNP was synthesized at a low-temperature (25 °C) solution process with suitable purity and crystallinity with a size range from 5 to 10 nm, as confirmed by different spectroscopic and microscopic analyses. The incorporation of an optimized amount of GnP (0.2 wt%) into the NNP significantly improved the electrocatalytic behavior for the redox reaction of iodide (I<sup>−</sup>)/tri-iodide (I<sub>3</sub><sup>−</sup>) by decreasing the charge-transfer resistance at the CE/electrolyte interface, lower than the NNP- and GnP-CEs, and comparable to the Pt-CE. The NNP/GnP nanohybrid CE when applied in DSSC exhibited a PCE of 6.13% (under one sun illumination conditions) with the <i>J<sub>sc</sub></i>, <i>V<sub>oc</sub></i>, and <i>FF</i> of 14.22 mA/cm<sup>2</sup>, 0.628 V, and 68.68%, respectively, while the PCE of the reference Pt-CE-based DSSC was 6.37% (<i>J<sub>sc</sub></i> = 14.47 mA/cm<sup>2</sup>, <i>V<sub>oc</sub></i> = 0.635 V, and <i>FF</i> = 69.20%). The low cost of the NNP/GnP hybrid CE with comparable photovoltaic performance to Pt-CE can be potentially exploited as a suitable replacement of Pt-CE in DSSCs.Md. Mahbubur RahmanMDPI AGarticlegraphenenickel pentacyanonitrosylferratechemical synthesiselectrocatalyticcounter electrodesolar cellsTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6563, p 6563 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	graphene nickel pentacyanonitrosylferrate chemical synthesis electrocatalytic counter electrode solar cells Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	graphene nickel pentacyanonitrosylferrate chemical synthesis electrocatalytic counter electrode solar cells Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Md. Mahbubur Rahman Low-Cost and Efficient Nickel Nitroprusside/Graphene Nanohybrid Electrocatalysts as Counter Electrodes for Dye-Sensitized Solar Cells
description	Novel nickel nitroprusside (NNP) nanoparticles with incorporated graphene nanoplatelets (NNP/GnP) were used for the first time as a low-cost and effective counter electrode (CE) for dye-sensitized solar cells (DSSCs). NNP was synthesized at a low-temperature (25 °C) solution process with suitable purity and crystallinity with a size range from 5 to 10 nm, as confirmed by different spectroscopic and microscopic analyses. The incorporation of an optimized amount of GnP (0.2 wt%) into the NNP significantly improved the electrocatalytic behavior for the redox reaction of iodide (I<sup>−</sup>)/tri-iodide (I<sub>3</sub><sup>−</sup>) by decreasing the charge-transfer resistance at the CE/electrolyte interface, lower than the NNP- and GnP-CEs, and comparable to the Pt-CE. The NNP/GnP nanohybrid CE when applied in DSSC exhibited a PCE of 6.13% (under one sun illumination conditions) with the <i>J<sub>sc</sub></i>, <i>V<sub>oc</sub></i>, and <i>FF</i> of 14.22 mA/cm<sup>2</sup>, 0.628 V, and 68.68%, respectively, while the PCE of the reference Pt-CE-based DSSC was 6.37% (<i>J<sub>sc</sub></i> = 14.47 mA/cm<sup>2</sup>, <i>V<sub>oc</sub></i> = 0.635 V, and <i>FF</i> = 69.20%). The low cost of the NNP/GnP hybrid CE with comparable photovoltaic performance to Pt-CE can be potentially exploited as a suitable replacement of Pt-CE in DSSCs.
format	article
author	Md. Mahbubur Rahman
author_facet	Md. Mahbubur Rahman
author_sort	Md. Mahbubur Rahman
title	Low-Cost and Efficient Nickel Nitroprusside/Graphene Nanohybrid Electrocatalysts as Counter Electrodes for Dye-Sensitized Solar Cells
title_short	Low-Cost and Efficient Nickel Nitroprusside/Graphene Nanohybrid Electrocatalysts as Counter Electrodes for Dye-Sensitized Solar Cells
title_full	Low-Cost and Efficient Nickel Nitroprusside/Graphene Nanohybrid Electrocatalysts as Counter Electrodes for Dye-Sensitized Solar Cells
title_fullStr	Low-Cost and Efficient Nickel Nitroprusside/Graphene Nanohybrid Electrocatalysts as Counter Electrodes for Dye-Sensitized Solar Cells
title_full_unstemmed	Low-Cost and Efficient Nickel Nitroprusside/Graphene Nanohybrid Electrocatalysts as Counter Electrodes for Dye-Sensitized Solar Cells
title_sort	low-cost and efficient nickel nitroprusside/graphene nanohybrid electrocatalysts as counter electrodes for dye-sensitized solar cells
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c29204c93381462991916bf4a3cc04d5
work_keys_str_mv	AT mdmahbuburrahman lowcostandefficientnickelnitroprussidegraphenenanohybridelectrocatalystsascounterelectrodesfordyesensitizedsolarcells
_version_	1718431967033163776

Low-Cost and Efficient Nickel Nitroprusside/Graphene Nanohybrid Electrocatalysts as Counter Electrodes for Dye-Sensitized Solar Cells

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