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Eosin-G and ethyl eosin dye sensitized CdS nanowires towards dye sensitized solar cells applications |
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| Authors: | Bhoomi Khodiyar Avinash C. Mendhe Tushar B. Deshmukh Babasaheb R. Sankapal |
| Affiliation: | 1. Nanomaterials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology, Nagpur, India Contribution: Methodology, Conceptualization, Data curation, Writing - original draft, Investigation;2. Nanomaterials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology, Nagpur, India Department of Electronics Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, Yongin, Republic of Korea Contribution: Methodology, Validation, Formal analysis, Writing - review & editing, Visualization;3. Nanomaterials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology, Nagpur, India Contribution: Data curation, Formal analysis, Visualization;4. Nanomaterials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology, Nagpur, India |
| Abstract: | One dimensional (1-D) CdS nanowires have been grown through a low temperature chemical route and have been sensitized with eosin-G and ethyl eosin dyes to broaden the absorption spectrum of CdS and to enhance the photoelectrochemical (PEC) performance under illumination. The used method is advantageous due to its simplicity, low cost, scalability, and controllability. Interestingly, eosin-G and ethyl eosin dyes yield nearly four- and six-fold increase in device efficiency compared to bare CdS when tested in dye-sensitized solar cell assembly. Structural, surface morphological, optical, and surface wettability studies have been formulated for CdS, whereas identification of materials along with PEC investigations were conducted through current density–voltage (J-V), external quantum efficiency (EQE), characteristics under the illumination of 94.6 mW/cm2 (AM 1.5G), and electrochemical impedance spectroscopy (EIS). |
| Keywords: | CdS nanowires DSSCs eosin-G ethyl eosin |