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Sanusi K, Olukoya AO, Sanyaolu NO, Ibikunle AA, Yussuf ST, Ogundare SA, Fatomi NO, Atewolara-Odule OC, Khoza PB. The Performance Evaluation of Meso-Tetraphenyl Porphyrin and Azo Dyes as Photosensitizers in Dye-sensitized Solar Cells. J Fluoresc 2024:10.1007/s10895-024-03632-w. [PMID: 38427223 DOI: 10.1007/s10895-024-03632-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 02/19/2024] [Indexed: 03/02/2024]
Abstract
The photovoltaic properties of five different mono-azo function and meso-tetraphenyl porphyrin dyes have been investigated by computational DFT/TDDFT calculations and measurement of the J-V properties of their cells. The photovoltaic efficiency of the cells based on these dyes were determined by both experimental and theoretical methods. The efficiency-to-cost ratios of the azo-dye cells showed that they could be cheaper substitutes to porphyrin-based cells. Eriochrome blue black (EBB) and eriochrome black T (EBT) cells were shown to possess the best photovoltaic properties by the two methods employed (theory and experiment). The presence of two naphthol moieties at both ends of their -N = N- group has been adduced as possible reason for their relatively outstanding performance. The extremely low efficiency-to-cost ratio obtained for cell-POR suggests that the use of porphyrin as sensitizer may not be as economically viable as some azo dyes. MTO, EBB and EBT were found to be the most cost-effective among the investigated dyes. The porphyrin's low performance may have been amplified by the absence of an effective anchor group in its molecular structure.
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Affiliation(s)
- Kayode Sanusi
- Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria.
- Department of Chemical Sciences, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria.
| | - Anuoluwapo O Olukoya
- Department of Chemical Sciences, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria
| | - Nurudeen O Sanyaolu
- Department of Chemical Sciences, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria
| | - Adeola A Ibikunle
- Department of Chemical Sciences, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria
| | - Sodiq T Yussuf
- Department of Chemical Sciences, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria
| | - Segun A Ogundare
- Department of Chemical Sciences, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria
| | - Nafisat O Fatomi
- Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
| | | | - Phindile B Khoza
- School of Chemistry and Physics, University of Kwazulu Natal, Westville Campus, Durban, 3629, South Africa
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Nwambaekwe KC, Ramoroka ME, Yussuf ST, Morudu TC, Ndipingwi MM, Iwuoha EI. Tb- and Eu-doped yttrium oxyselenides as novel absorber layers for superstrate thin-film photovoltaics: improved spectral optical absorption and green-red phosphor activation. Nanoscale 2023; 15:17147-17172. [PMID: 37853791 DOI: 10.1039/d3nr01162c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
To generate and deliver alternative sustainable energy in the face of the current energy crisis, new materials that can capture solar energy and transform it into other useful energies are required. Rare-earth (RE) oxychalcogenides are now being used more frequently as up/down-conversion materials in established photovoltaic (PV) devices to boost their PV performance. Here, through an efficient microwave assisted synthesis procedure, novel nanoplate/sheet shaped nanomaterials of yttrium oxyselenide (YOSe) and its analogues doped with Tb and Eu (YOSe:Tb and YOSe:Eu) were successfully synthesized. Analyses of the structure, stability, morphology, light absorption, and electrochemistry were performed. This work showed that the parent YOSe exhibited green (543 nm) and red (615 nm) emission luminescence when doped with Tb and Eu with a luminescence quantum yield (LQY) of 0.56 and 0.53 for YOSe:Tb and YOSe:Eu nanomaterials, respectively. The surface and material conductivity of YOSe improved with the addition of the dopant elements, with the best outcome shown in YOSe:Eu, according to electrokinetic research evidenced by the enhanced current peaks, reduced charge-transfer resistance (Rct) and low impedance magnitude (Zmag) through electrochemical experiments. These improvements were induced by the distinctive properties of the dopant elements. PCEs of 0.25%, 0.67%, and 1.20% were obtained for YOSe, YOSe:Tb, and YOSe:Eu-based PV devices, respectively, using the nanomaterials as novel absorber layers in a superstrate device design. Our results can initiate further exploitation of the doped host structure for effective down-conversion NIR luminescence for applications in PV devices and to boost the PV performance of existing solar cells.
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Affiliation(s)
- Kelechi C Nwambaekwe
- Key Laboratory for NanoElectrochemistry, University of the Western Cape Sensor Laboratories (SensorLab), 4th Floor Chemical Sciences Building, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, Cape Town, South Africa.
| | - Morongwa E Ramoroka
- Key Laboratory for NanoElectrochemistry, University of the Western Cape Sensor Laboratories (SensorLab), 4th Floor Chemical Sciences Building, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, Cape Town, South Africa.
| | - Sodiq T Yussuf
- Key Laboratory for NanoElectrochemistry, University of the Western Cape Sensor Laboratories (SensorLab), 4th Floor Chemical Sciences Building, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, Cape Town, South Africa.
| | - Tshaamano C Morudu
- Key Laboratory for NanoElectrochemistry, University of the Western Cape Sensor Laboratories (SensorLab), 4th Floor Chemical Sciences Building, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, Cape Town, South Africa.
| | - Miranda M Ndipingwi
- Key Laboratory for NanoElectrochemistry, University of the Western Cape Sensor Laboratories (SensorLab), 4th Floor Chemical Sciences Building, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, Cape Town, South Africa.
| | - Emmanuel I Iwuoha
- Key Laboratory for NanoElectrochemistry, University of the Western Cape Sensor Laboratories (SensorLab), 4th Floor Chemical Sciences Building, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, Cape Town, South Africa.
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Mabokela TE, Nwanya AC, Ndipingwi MM, Yussuf ST, Ekwere PI, Uhuo OV, Ikpo CO, Modibane KD, Iwuoha EI. Nanostructured Europium-Doped Layered Lithium Manganese Oxide as a Prospective Cathode Material for Aqueous Lithium-Ion Battery. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.141865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Ndipingwi MM, Ikpo CO, Nwanya AC, Januarie KC, Ramoroka ME, Uhuo OV, Nwambaekwe K, Yussuf ST, Iwuoha EI. Engineering the chemical environment of lithium manganese silicate by Mn ion substitution to boost the charge storage capacity for application in high efficiency supercapattery. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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