NDLI: Promotional effect of silver nanoparticles on the performance of N-doped TiO<sub>2</sub> photoanode-based dye-sensitized solar cells

Content Provider	Royal Society of Chemistry (RSC)
Author	Lim, Hong Ngee Huang, Nay Ming Gu, Guochen Ma, Ting Li Pandikumar, Alagarsamy Lim, Su Pei
Copyright Year	2014
Abstract	We report the first successful application of an N-TiO2–Ag nanocomposite as an efficient photoanode for highly efficient dye-sensitized solar cells (DSSC). The N-TiO2–Ag nanocomposites with different Ag contents were prepared using a simple chemical reduction method and characterized using various suitable techniques. The DSSC assembled with the N-TiO2–Ag-modified photoanode demonstrated an enhanced solar-to-electrical energy conversion efficiency of 8.15% compared to the photoanode of a DSSC composed of unmodified TiO2 (2.19%) under full sunlight illumination (100 mW cm−2, AM 1.5 G). This superior DSSC performance was due to the reduced band gap energy and retarded charge recombination that resulted from the introduction of plasmonic Ag nanoparticles on the surface of N-TiO2. The influence of the Ag content on the overall efficiency was also investigated, and the optimum Ag content for N-TiO2 was found to be 10 wt%. The enhanced solar energy conversion efficiency demonstrated by the N-TiO2–Ag nanocomposite makes it a promising alternative to conventional photoanode-based DSSCs.
Starting Page	48236
Ending Page	48244
Page Count	9
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	4
Issue Number	89
Journal	RSC Advances
DOI	10.1039/c4ra09775k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Dye-sensitized solar cell Carrier generation and recombination Solar energy Amplitude modulation Nanocomposite Band gap DSSC
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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