Research Papers

Dye-Sensitized Solar Cell Using Saffron Petal Extract as a Novel Natural Sensitizer

[+] Author and Article Information
Kambiz Hosseinpanahi

Department of Biosystems Engineering,
Faculty of Agriculture,
Ferdowsi University of Mashhad,
Mashhad 9177948978, Iran
e-mail: Hosseinpanahi.kambiz@stu.um.ac.ir

Mohammad Hossein Abbaspour-Fard

Department of Biosystems Engineering,
Faculty of Agriculture,
Ferdowsi University of Mashhad,
Mashhad 9177948978, Iran
e-mail: abaspour@um.ac.ir

Javad Feizy

Assistant Professor
Department of Food Chemistry,
Research Institute of Food Science and Technology (RIFST),
Mashhad 9177948978, Iran
e-mail: feizy.j@gmail.com

Mahmood Reza Golzarian

Assistant Professor
Department of Biosystems Engineering,
Faculty of Agriculture,
Ferdowsi University of Mashhad,
Mashhad 9177948978, Iran
e-mail: mahmoodgolzarian@gmail.com

1Corresponding author.

Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received April 16, 2016; final manuscript received September 18, 2016; published online November 29, 2016. Assoc. Editor: Wojciech Lipinski.

J. Sol. Energy Eng 139(2), 021009 (Nov 29, 2016) (5 pages) Paper No: SOL-16-1164; doi: 10.1115/1.4034908 History: Received April 16, 2016; Revised September 18, 2016

Natural dye extract of the saffron petal, purified by solid-phase extraction (SPE) technique, has been studied as a novel sensitizing dye to fabricate TiO2 nanoparticles-based dye-sensitized solar cells (DSSC). The extract was characterized using ultraviolet–visible (UV–Vis) and Fourier transform infrared (FTIR) spectroscopies to confirm the presence of anthocyanins in saffron petals. The typical current–voltage and the incident photon to current efficiency (IPCE) curves were also provided for the fabricated cell. The saffron petal extract exhibited an open-circuit voltage (Voc) of 0.397 V, short circuit current density (Jsc) of 2.32 mA/cm2, fill factor (FF) of 0.71, and conversion efficiency of 0.66%, which are fairly good in comparison with the other similar natural dye-sensitized solar cells. These are mainly due to the improved charge transfer between the dye extract of saffron petal and the TiO2 anode surface. Considering these results, it can be concluded that the use of saffron petal dye as a sensitizer in DSSC is a promising method for providing clean energy from performance, environmental friendliness, and cost points of view.

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Fig. 1

Schematic performance of a dye-sensitized solar cells reaction

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Fig. 2

The basic structure of anthocyanins in flavylium cation [21]

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Fig. 3

Saffron petals (a) and chemical structure of delphinidin (b)

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Fig. 4

UV–Vis absorption spectrum of (a) the dye solution obtained from saffron petal and (b) dye after adsorption onto the TiO2 surface

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Fig. 5

Fourier-transform infrared spectra for the purified dyes obtained from the saffron petal

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Fig. 6

IPCE curve photoaction spectra on DSSC of the saffron petal

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Fig. 7

Photocurrent–voltage (J–V) curve for dye-sensitized solar cell using saffron petal dye

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Fig. 8

Schematic illustration of the complex reaction of the hydroxylated TiO2 surface by catechol [48]



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