Polarization effect of dye-sensitizers on the current density and photovoltaic efficiency of co-sensitized DSSCs using metal-free and metal-based organic dyes
Abstract Co-sensitization of metal-free (Eosin and Coumarin) and metal-based (N3 and N719) organic dye combinations were employed with $ TiO_{2} $ nanoparticles based photoanodes for the fabrication of dye-sensitized solar cells. The charge injection and oxidized dye regeneration process in mono and...
Ausführliche Beschreibung
Autor*in: |
Ashok Kumar, K. [verfasserIn] |
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Format: |
Artikel |
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Sprache: |
Englisch |
Erschienen: |
2018 |
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Anmerkung: |
© Springer Science+Business Media, LLC, part of Springer Nature 2018 |
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Übergeordnetes Werk: |
Enthalten in: Journal of materials science / Materials in electronics - Springer US, 1990, 30(2018), 1 vom: 09. Nov., Seite 230-240 |
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Übergeordnetes Werk: |
volume:30 ; year:2018 ; number:1 ; day:09 ; month:11 ; pages:230-240 |
Links: |
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DOI / URN: |
10.1007/s10854-018-0285-5 |
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Katalog-ID: |
OLC2026360979 |
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10.1007/s10854-018-0285-5 doi (DE-627)OLC2026360979 (DE-He213)s10854-018-0285-5-p DE-627 ger DE-627 rakwb eng 600 670 620 VZ Ashok Kumar, K. verfasserin aut Polarization effect of dye-sensitizers on the current density and photovoltaic efficiency of co-sensitized DSSCs using metal-free and metal-based organic dyes 2018 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC, part of Springer Nature 2018 Abstract Co-sensitization of metal-free (Eosin and Coumarin) and metal-based (N3 and N719) organic dye combinations were employed with $ TiO_{2} $ nanoparticles based photoanodes for the fabrication of dye-sensitized solar cells. The charge injection and oxidized dye regeneration process in mono and co-sensitized system were explored from the constructed energy level diagram using cyclic voltammetry analysis. Electrochemical impedance measurements were performed to determine interfacial charge transfer kinetics such as chemical capacitance, recombination resistance and electron lifetime. Current density–Voltage (J–V) characteristics resulted an improved efficiencies in co-sensitized DSSCs due to increased short circuit current density (Jsc). The studies on polarization effect was also evaluated using conductivity plot of impedance spectroscopy. Here, we report for the first time, the internal polarization of dye-sensitizers contributes a small current in the total obtained current density (Jsc) of a device besides the conduction current which enhances the PCE. Especially, high polarization effect of coumarin dye by its resonance polar structure increasing the conductivity in intermediate frequency region of conductivity plot and thus the current density gets enhanced. Improved efficiency of ~ 5.4% was realized in pure metal-based dye co-sensitization by its optimized electron concentration in CB $ TiO_{2} $ to balance charge injection and recombination. Subalakshmi, K. aut Karl Chinnu, M. aut Senthilselvan, J. aut Enthalten in Journal of materials science / Materials in electronics Springer US, 1990 30(2018), 1 vom: 09. Nov., Seite 230-240 (DE-627)130863289 (DE-600)1030929-9 (DE-576)023106719 0957-4522 nnns volume:30 year:2018 number:1 day:09 month:11 pages:230-240 https://doi.org/10.1007/s10854-018-0285-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2015 AR 30 2018 1 09 11 230-240 |
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10.1007/s10854-018-0285-5 doi (DE-627)OLC2026360979 (DE-He213)s10854-018-0285-5-p DE-627 ger DE-627 rakwb eng 600 670 620 VZ Ashok Kumar, K. verfasserin aut Polarization effect of dye-sensitizers on the current density and photovoltaic efficiency of co-sensitized DSSCs using metal-free and metal-based organic dyes 2018 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC, part of Springer Nature 2018 Abstract Co-sensitization of metal-free (Eosin and Coumarin) and metal-based (N3 and N719) organic dye combinations were employed with $ TiO_{2} $ nanoparticles based photoanodes for the fabrication of dye-sensitized solar cells. The charge injection and oxidized dye regeneration process in mono and co-sensitized system were explored from the constructed energy level diagram using cyclic voltammetry analysis. Electrochemical impedance measurements were performed to determine interfacial charge transfer kinetics such as chemical capacitance, recombination resistance and electron lifetime. Current density–Voltage (J–V) characteristics resulted an improved efficiencies in co-sensitized DSSCs due to increased short circuit current density (Jsc). The studies on polarization effect was also evaluated using conductivity plot of impedance spectroscopy. Here, we report for the first time, the internal polarization of dye-sensitizers contributes a small current in the total obtained current density (Jsc) of a device besides the conduction current which enhances the PCE. Especially, high polarization effect of coumarin dye by its resonance polar structure increasing the conductivity in intermediate frequency region of conductivity plot and thus the current density gets enhanced. Improved efficiency of ~ 5.4% was realized in pure metal-based dye co-sensitization by its optimized electron concentration in CB $ TiO_{2} $ to balance charge injection and recombination. Subalakshmi, K. aut Karl Chinnu, M. aut Senthilselvan, J. aut Enthalten in Journal of materials science / Materials in electronics Springer US, 1990 30(2018), 1 vom: 09. Nov., Seite 230-240 (DE-627)130863289 (DE-600)1030929-9 (DE-576)023106719 0957-4522 nnns volume:30 year:2018 number:1 day:09 month:11 pages:230-240 https://doi.org/10.1007/s10854-018-0285-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2015 AR 30 2018 1 09 11 230-240 |
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10.1007/s10854-018-0285-5 doi (DE-627)OLC2026360979 (DE-He213)s10854-018-0285-5-p DE-627 ger DE-627 rakwb eng 600 670 620 VZ Ashok Kumar, K. verfasserin aut Polarization effect of dye-sensitizers on the current density and photovoltaic efficiency of co-sensitized DSSCs using metal-free and metal-based organic dyes 2018 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC, part of Springer Nature 2018 Abstract Co-sensitization of metal-free (Eosin and Coumarin) and metal-based (N3 and N719) organic dye combinations were employed with $ TiO_{2} $ nanoparticles based photoanodes for the fabrication of dye-sensitized solar cells. The charge injection and oxidized dye regeneration process in mono and co-sensitized system were explored from the constructed energy level diagram using cyclic voltammetry analysis. Electrochemical impedance measurements were performed to determine interfacial charge transfer kinetics such as chemical capacitance, recombination resistance and electron lifetime. Current density–Voltage (J–V) characteristics resulted an improved efficiencies in co-sensitized DSSCs due to increased short circuit current density (Jsc). The studies on polarization effect was also evaluated using conductivity plot of impedance spectroscopy. Here, we report for the first time, the internal polarization of dye-sensitizers contributes a small current in the total obtained current density (Jsc) of a device besides the conduction current which enhances the PCE. Especially, high polarization effect of coumarin dye by its resonance polar structure increasing the conductivity in intermediate frequency region of conductivity plot and thus the current density gets enhanced. Improved efficiency of ~ 5.4% was realized in pure metal-based dye co-sensitization by its optimized electron concentration in CB $ TiO_{2} $ to balance charge injection and recombination. Subalakshmi, K. aut Karl Chinnu, M. aut Senthilselvan, J. aut Enthalten in Journal of materials science / Materials in electronics Springer US, 1990 30(2018), 1 vom: 09. Nov., Seite 230-240 (DE-627)130863289 (DE-600)1030929-9 (DE-576)023106719 0957-4522 nnns volume:30 year:2018 number:1 day:09 month:11 pages:230-240 https://doi.org/10.1007/s10854-018-0285-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2015 AR 30 2018 1 09 11 230-240 |
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Polarization effect of dye-sensitizers on the current density and photovoltaic efficiency of co-sensitized DSSCs using metal-free and metal-based organic dyes |
abstract |
Abstract Co-sensitization of metal-free (Eosin and Coumarin) and metal-based (N3 and N719) organic dye combinations were employed with $ TiO_{2} $ nanoparticles based photoanodes for the fabrication of dye-sensitized solar cells. The charge injection and oxidized dye regeneration process in mono and co-sensitized system were explored from the constructed energy level diagram using cyclic voltammetry analysis. Electrochemical impedance measurements were performed to determine interfacial charge transfer kinetics such as chemical capacitance, recombination resistance and electron lifetime. Current density–Voltage (J–V) characteristics resulted an improved efficiencies in co-sensitized DSSCs due to increased short circuit current density (Jsc). The studies on polarization effect was also evaluated using conductivity plot of impedance spectroscopy. Here, we report for the first time, the internal polarization of dye-sensitizers contributes a small current in the total obtained current density (Jsc) of a device besides the conduction current which enhances the PCE. Especially, high polarization effect of coumarin dye by its resonance polar structure increasing the conductivity in intermediate frequency region of conductivity plot and thus the current density gets enhanced. Improved efficiency of ~ 5.4% was realized in pure metal-based dye co-sensitization by its optimized electron concentration in CB $ TiO_{2} $ to balance charge injection and recombination. © Springer Science+Business Media, LLC, part of Springer Nature 2018 |
abstractGer |
Abstract Co-sensitization of metal-free (Eosin and Coumarin) and metal-based (N3 and N719) organic dye combinations were employed with $ TiO_{2} $ nanoparticles based photoanodes for the fabrication of dye-sensitized solar cells. The charge injection and oxidized dye regeneration process in mono and co-sensitized system were explored from the constructed energy level diagram using cyclic voltammetry analysis. Electrochemical impedance measurements were performed to determine interfacial charge transfer kinetics such as chemical capacitance, recombination resistance and electron lifetime. Current density–Voltage (J–V) characteristics resulted an improved efficiencies in co-sensitized DSSCs due to increased short circuit current density (Jsc). The studies on polarization effect was also evaluated using conductivity plot of impedance spectroscopy. Here, we report for the first time, the internal polarization of dye-sensitizers contributes a small current in the total obtained current density (Jsc) of a device besides the conduction current which enhances the PCE. Especially, high polarization effect of coumarin dye by its resonance polar structure increasing the conductivity in intermediate frequency region of conductivity plot and thus the current density gets enhanced. Improved efficiency of ~ 5.4% was realized in pure metal-based dye co-sensitization by its optimized electron concentration in CB $ TiO_{2} $ to balance charge injection and recombination. © Springer Science+Business Media, LLC, part of Springer Nature 2018 |
abstract_unstemmed |
Abstract Co-sensitization of metal-free (Eosin and Coumarin) and metal-based (N3 and N719) organic dye combinations were employed with $ TiO_{2} $ nanoparticles based photoanodes for the fabrication of dye-sensitized solar cells. The charge injection and oxidized dye regeneration process in mono and co-sensitized system were explored from the constructed energy level diagram using cyclic voltammetry analysis. Electrochemical impedance measurements were performed to determine interfacial charge transfer kinetics such as chemical capacitance, recombination resistance and electron lifetime. Current density–Voltage (J–V) characteristics resulted an improved efficiencies in co-sensitized DSSCs due to increased short circuit current density (Jsc). The studies on polarization effect was also evaluated using conductivity plot of impedance spectroscopy. Here, we report for the first time, the internal polarization of dye-sensitizers contributes a small current in the total obtained current density (Jsc) of a device besides the conduction current which enhances the PCE. Especially, high polarization effect of coumarin dye by its resonance polar structure increasing the conductivity in intermediate frequency region of conductivity plot and thus the current density gets enhanced. Improved efficiency of ~ 5.4% was realized in pure metal-based dye co-sensitization by its optimized electron concentration in CB $ TiO_{2} $ to balance charge injection and recombination. © Springer Science+Business Media, LLC, part of Springer Nature 2018 |
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1 |
title_short |
Polarization effect of dye-sensitizers on the current density and photovoltaic efficiency of co-sensitized DSSCs using metal-free and metal-based organic dyes |
url |
https://doi.org/10.1007/s10854-018-0285-5 |
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author2 |
Subalakshmi, K. Karl Chinnu, M. Senthilselvan, J. |
author2Str |
Subalakshmi, K. Karl Chinnu, M. Senthilselvan, J. |
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doi_str |
10.1007/s10854-018-0285-5 |
up_date |
2024-07-04T03:47:16.767Z |
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