Performance engineering of dye sensitized solar cells (DSSC) using Ag modified titania as photoanode

2017 2nd International Conference on Functional Materials and Metallurgy

材料科学;冶金学

Nair, Ranjith G.^1 ; Mathan Kumar, P.^1 ; Samdarshi, S.K.^2

Solar Energy Materials Research and Testing Laboratory (SMaRT Lab), Department of Physics, National Institute of Technology Silchar, Cachar, Assam

788010, India^1

Centre for Energy Engineering and, Centre of Excellence in Green and Efficient Energy Technology (CoE-GEET), Central University of Jharkhand, Ranchi

835205, India^2

关键词: High crystallinity;    Modified titania;    Performance engineering;    Photoconversion efficiency;    Platinum counter electrodes;    Redox electrolytes;    Ruthenium dye;    TEM micrographs;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/303/1/012001/pdf
DOI  :  10.1088/1757-899X/303/1/012001

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Present work reports the fabrication of silver (Ag) modified titania photoanode as an efficient photoanode for Dye Sensitized Solar Cell (DSSC). Pristine and Ag modified Titania nanomaterials were prepared using sol gel method. The structural analyses confirm the high crystallinity of the samples with crystallite size distribution in nanorange. TEM micrograph confirms that the synthesized nanomaterials are in uniform size. A red shift is observed in the UV DRS spectra compared to pristine Titania and which confirm the incorporation of Ag inside titania. A prototype DSSC was fabricated using the pristine and modified Titania as photoanode, Ruthenium dye as sensitizer, I-/I-3 as redox electrolyte and platinum counter electrode. The cell with Ag modified titania photoanode showed 15 times enhanced photoconversion efficiency (PCE) than the pristine one. This improved performance of the Ag modified DSSC can be ascribed to reduced recombination and improved charge carrier transport of electrons/holes at the interfaces.