Modeling and Simulation of a Dye Sensitized Solar Cell with Porous Aerogel Photoanode
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ORIGINAL ARTICLE
Modeling and Simulation of a Dye Sensitized Solar Cell with Porous Aerogel Photoanode S. C. Ramesh1 · C. Christopher Columbus2 · X. Sahaya Shajan3 Received: 5 February 2020 / Revised: 16 September 2020 / Accepted: 26 October 2020 © The Korean Institute of Electrical Engineers 2020
Abstract Nanostructured aerogels are potential candidates for photoanodes in dye sensitized solar cells (DSSCs). Recent studies show that solid state DSSC with titania aerogel photoanodes exhibit conversion efficiency of 5.2%. This is mainly attributed to the high short-circuit current density achieved by more dye adsorption and reduced recombination of charge carriers. In this paper we have attempted to develop a simulation based on a theoretical model to understand the performance of aerogel based DSSC. The theoretical results obtained are compared with the experimental results. The results generated by the theoretical model agree well with the results obtained experimentally. Keywords Dye sensitized solar cells · Aerogels · Mesoporous materials · J–V characteristics
1 Introduction Dye sensitized solar cell (DSSC) is a potential low cost alternative to silicon solar cells due to ease in fabrication and having higher efficiency suitable for commercial solar cell applications [1, 2]. Attempts have been made by many researchers on identifying materials for photoanode and to obtain higher efficiencies [3]. Also, the major drawbacks in using liquid electrolytes are now overcome by replacing liquid electrolytes with solid polymer electrolytes for the fabrication of quasi-solid dye sensitized solar cells. One of the advantage of DSSCs is that they can be used for indoor applications and even during night [4]. This is because the dye can be sensitized even using a fluorescent lamp. T iO2 nanostructures such as nanospheres, nanorods, nanotubes are successfully employed as photoanode materials for DSSC
* S. C. Ramesh [email protected] 1
Research Scholar, PSN College of Engineering and Technology, Tirunelveli, Tamilnadu, India
2
Department of Computer Science and Engineering, PSN College of Engineering and Technology, Tirunelveli, Tamilnadu, India
3
Centre for Scientific and Applied Research, PSN College of Engineering and Technology, Tirunelveli, Tamilnadu, India
because of their fascinating surface properties and chemical stability [5–8]. On the other hand aerogels are mesoporous structure offering large internal surface area, wide pore size distribution, high optical transparency and low density [9]. These properties of aerogel compared to other nanostructures like nanospheres, nanorods and nanotubes make them as potential candidates for photovoltaic applications [10]. Recently aerogel based DSSC with a conversion efficiency of 5.2% has been reported in the literature [11]. This was achieved due to their high dye adsorption and reduced recombination of charge carriers [12, 13]. The first DSSC was characterized by Gratzel and O’Regan and the J–V characteristics were obtained by solving a diffusion equa
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