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Fabrication of Nanosticks-Like CdS Sensitizer for the Application of Solar Cells

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The novelty of this work is to fabricate the Nanosticks (NSs) like CdS sensitizer on the surface of TiO2 electrode by chemical bath deposition (CBD) method with a very high vacuum annealed at 350 °C for 30 min. Whereas, nanocrystalline TiO2 electrodes have been prepared on FTO (SnO2: F) glass by a spin-coating method with high purity (99.99%, Degussa P25) TiO2 powder. The surface of the CdS layer has been covered by NSs like structures which are confirmed by the scanning electron microscope image. The 100 nm of platinum-coated FTO substrate and polysulfide-based electrolyte are used to assemble the Grätzel Solar cell (GSC). The performance of solar cell (SC) based on NSs like CdS has been compared with the nanoparticles (NPs) based CdS sensitized SC, where CdS NPs has synthesized by CBD without any post-annealing. The efficiency of NSs like CdS sensitized SC exhibits 2.44%, which is 2 folds of the efficiency of the CdS NPs sensitized SC. The NSs like CdS sensitized SC shows the highest photocurrent 20.24 mA/cm2 compared to CdS NPs based SC.
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Keywords: Cadmium Sulfate (CdS); Chemical Bath Deposition; Nanoarchitectonics; Nanoparticles; Nanosticks; Solar Cell; TiO2; Vacuum-Annealed

Document Type: Research Article

Affiliations: Department of Electrical & Electronic Engineering, Rajshahi University of Engineering & Technology, Rajshahi-6204, Bangladesh

Publication date: May 1, 2020

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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