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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Sharafali, A. Anandan, Sambandam Murugan, Ramaswamy Shanmugam, Vinoth Manoharan, Subbaiah |
| Description | Country affiliation: India Author Affiliation: Shanmugam V ( Department of Physics, Pondicherry University, Puducherry 605 014, India.); Manoharan S ( Nanomaterials and Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620 015, India.); Sharafali A ( Department of Physics, Pondicherry University, Puducherry 605 014, India.); Anandan S ( Nanomaterials and Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620 015, India.); Murugan R ( Department of Physics, Pondicherry University, Puducherry 605 014, India. Electronic address: moranamurugan.phy@pondiuni.edu.in.) |
| Abstract | Chlorophylls, the major pigments presented in plants are responsible for the process of photosynthesis. The working principle of dye sensitized solar cell (DSSC) is analogous to natural photosynthesis in light-harvesting and charge separation. In a similar way, natural dyes extracted from three types of grasses viz. Hierochloe Odorata (HO), Torulinium Odoratum (TO) and Dactyloctenium Aegyptium (DA) were used as light harvesters in dye sensitized solar cells (DSSCs). The UV-Vis absorption spectroscopy, Fourier transform infrared (FT-IR), and liquid chromatography-mass spectrometry (LC-MS) were used to characterize the dyes. The electron transport mechanism and internal resistance of the DSSCs were investigated by the electrochemical impedance spectroscopy (EIS). The performance of the cells fabricated with the grass extract shows comparable efficiencies with the reported natural dyes. Among the three types of grasses, the DSSC fabricated with the dye extracted from Hierochloe Odorata (HO) exhibited the maximum efficiency. LC-MS investigations indicated that the dominant pigment present in HO dye was pheophytin a (Pheo a). |
| ISSN | 13861425 |
| Volume Number | 135 |
| e-ISSN | 18733557 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-01-25 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Coloring Agents Chemistry Light Poaceae Solar Energy Absorption, Physicochemical Chromatography, Liquid Dielectric Spectroscopy Electricity Electrodes Mass Spectrometry Microscopy, Electron, Scanning Spectrophotometry, Ultraviolet Spectroscopy, Fourier Transform Infrared Titanium Journal Article Research Support, Non-u.s. Gov't Discipline Spectroscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Atomic and Molecular Physics, and Optics Analytical Chemistry Instrumentation |
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