Combined experimental and DFT investigation on photovoltaic performance of low-cost metal-free organic dye-sensitized solar cells
Metal-free organic dyes, viz. eosin yellow (eosin-Y), fluorescein and curcumin were used as sensitizers in zinc oxide (ZnO) nanoparticles thin film photoanode based dye-sensitized solar cell (DSSC) and also investigated by density functional theory (DFT). UV?vis spectrophotometer was employed to det...
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Elsevier B.V.
2025
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| author | Kandasamy M. Suresh S. Deepan Kumar M. Murugesan S. Selvaraj M. Prem Ananth K. Kumar N. Husain A. Pugazhenthiran N. Sathishkumar P. Ansari M.N.M. |
| author2 | 57052581200 |
| author_facet | 57052581200 Kandasamy M. Suresh S. Deepan Kumar M. Murugesan S. Selvaraj M. Prem Ananth K. Kumar N. Husain A. Pugazhenthiran N. Sathishkumar P. Ansari M.N.M. |
| author_sort | Kandasamy M. |
| building | UNITEN Library |
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| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Metal-free organic dyes, viz. eosin yellow (eosin-Y), fluorescein and curcumin were used as sensitizers in zinc oxide (ZnO) nanoparticles thin film photoanode based dye-sensitized solar cell (DSSC) and also investigated by density functional theory (DFT). UV?vis spectrophotometer was employed to determine absorption feature of dyes in solar spectrum, adsorption tendency towards ZnO photoanode surface, molar-extinction coefficient and desorbed dye molecules from the photoanode surface. The photovoltaic performance of metal-free organic DSSCs employing imidazole based liquid electrolyte and platinum counter electrode was evaluated under standard light exposure of 85 mW/cm2. Among the dyes, eosin-Y DSSC delivered overall energy conversion efficiency (?) of 0.95 % with short-circuit photocurrent density (Jsc) of 2.98 mA cm?2, open-circuit photovoltage (Voc) of 0.54 V and fill factor (FF) of 0.50, which was about 20 % and 40 % higher than that of the energy conversion efficiency of DSSCs sensitized with fluorescein and curcumin dyes, respectively. The better photovoltaic performance exhibited by the eosin-Y DSSC is credited to its high molar extinction coefficient, intense light absorption in the solar spectrum and good adsorption on ZnO thin film photoanode surface. The maximum driving force for dye molecules regeneration and electron injection value of eosin-Y dye attached on the surface of ZnO cluster (eosin-Y + ZnO) resulted in higher Voc. The outcomes of this experimental data are in well agreement with DFT results. ? 2024 Elsevier B.V. |
| format | Article |
| id | my.uniten.dspace-36544 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2025 |
| publisher | Elsevier B.V. |
| record_format | dspace |
| spelling | my.uniten.dspace-365442025-03-03T15:42:59Z Combined experimental and DFT investigation on photovoltaic performance of low-cost metal-free organic dye-sensitized solar cells Kandasamy M. Suresh S. Deepan Kumar M. Murugesan S. Selvaraj M. Prem Ananth K. Kumar N. Husain A. Pugazhenthiran N. Sathishkumar P. Ansari M.N.M. 57052581200 57837699600 58506463300 11939362800 7003615747 58528122700 57201635180 57215031715 23989733500 36982069900 55489853600 Metal-free organic dyes, viz. eosin yellow (eosin-Y), fluorescein and curcumin were used as sensitizers in zinc oxide (ZnO) nanoparticles thin film photoanode based dye-sensitized solar cell (DSSC) and also investigated by density functional theory (DFT). UV?vis spectrophotometer was employed to determine absorption feature of dyes in solar spectrum, adsorption tendency towards ZnO photoanode surface, molar-extinction coefficient and desorbed dye molecules from the photoanode surface. The photovoltaic performance of metal-free organic DSSCs employing imidazole based liquid electrolyte and platinum counter electrode was evaluated under standard light exposure of 85 mW/cm2. Among the dyes, eosin-Y DSSC delivered overall energy conversion efficiency (?) of 0.95 % with short-circuit photocurrent density (Jsc) of 2.98 mA cm?2, open-circuit photovoltage (Voc) of 0.54 V and fill factor (FF) of 0.50, which was about 20 % and 40 % higher than that of the energy conversion efficiency of DSSCs sensitized with fluorescein and curcumin dyes, respectively. The better photovoltaic performance exhibited by the eosin-Y DSSC is credited to its high molar extinction coefficient, intense light absorption in the solar spectrum and good adsorption on ZnO thin film photoanode surface. The maximum driving force for dye molecules regeneration and electron injection value of eosin-Y dye attached on the surface of ZnO cluster (eosin-Y + ZnO) resulted in higher Voc. The outcomes of this experimental data are in well agreement with DFT results. ? 2024 Elsevier B.V. Final 2025-03-03T07:42:59Z 2025-03-03T07:42:59Z 2024 Article 10.1016/j.inoche.2024.112406 2-s2.0-85189972973 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85189972973&doi=10.1016%2fj.inoche.2024.112406&partnerID=40&md5=4281ab51b50a39be3f2c93599999cbff https://irepository.uniten.edu.my/handle/123456789/36544 164 112406 Elsevier B.V. Scopus |
| spellingShingle | Kandasamy M. Suresh S. Deepan Kumar M. Murugesan S. Selvaraj M. Prem Ananth K. Kumar N. Husain A. Pugazhenthiran N. Sathishkumar P. Ansari M.N.M. Combined experimental and DFT investigation on photovoltaic performance of low-cost metal-free organic dye-sensitized solar cells |
| title | Combined experimental and DFT investigation on photovoltaic performance of low-cost metal-free organic dye-sensitized solar cells |
| title_full | Combined experimental and DFT investigation on photovoltaic performance of low-cost metal-free organic dye-sensitized solar cells |
| title_fullStr | Combined experimental and DFT investigation on photovoltaic performance of low-cost metal-free organic dye-sensitized solar cells |
| title_full_unstemmed | Combined experimental and DFT investigation on photovoltaic performance of low-cost metal-free organic dye-sensitized solar cells |
| title_short | Combined experimental and DFT investigation on photovoltaic performance of low-cost metal-free organic dye-sensitized solar cells |
| title_sort | combined experimental and dft investigation on photovoltaic performance of low-cost metal-free organic dye-sensitized solar cells |
| url_provider | http://dspace.uniten.edu.my/ |