scholarly journals ENHANCED PERFORMANCE OF DYE-SENSITIZED SOLAR CELLS USING MELINJO PEEL (GNETUM GNEMON) DYE AS SENSITIZER

2019 ◽  
Vol 2 (3) ◽  
pp. 106
Author(s):  
Hardani Hardani ◽  
Lily Maysari Angraini
Keyword(s):  
Solar Cells ◽  
Visible Light ◽  
Active Material ◽  
Dye Sensitized Solar Cells ◽  
Extraction Process ◽  
Natural Dyes ◽  
Natural Material ◽  
Dye Sensitized ◽  
Gnetum Gnemon ◽  
Sensitized Solar Cells

It has been successfully identified and characterized by dye Melinjo peel (Gnetum gnemon) as an active material for Dye Sensitized Solar Cells (DSSC). The sample is formed in the structure of a working pair of electrode sandwiches and opposing electrodes. The dye extraction process (Dye) of the melinjo was stirred for 1 hour and then left to stand for 24 hours but there were only differences in how to doping dye into TiO2.Dye-sensitized solar cell (DSSC) is one of the photochemical electrical cells consisting of a photoelectrode, dye, electrolyte, and counter electrode. The purpose of using dyes in the DSSC is to extend the absorption spectrum to visible light because visible light has about 96% energy from sunlight. This article presents some experimental data on the nature of absorbance and the conductivity of natural dyes extracted from the plant as an application in the DSSC. Absorbance test using Spectrophotometer UV Visible 1601 PC and electrical properties test using Elkahfi 100 / Meter I-V. DSSC fabrication has been done using dye extract of melinjo (Gnetum gnemon) with a variety of immersion technique of drops and soak. The results show that natural dyes from natural material extraction have an absorbance spectrum of 380-520 nm range and the greatest conductivity is owned by melinjo (Gnetum gnemon). From the results of the test using AM Simulator 1.5G (100 mW / cm2) diesel simulator, it was found that the volume of TiO2 precursors affected the performance of DSSC solar cells and the overall conversion efficiency was 0.03% for the melinjo (Gnetum gnemon) dye by drops technique and 0.009% for the melinjo (Gnetum gnemon) dye by soak technique.

Application of new natural dyes extracted from Nasturtium flowers (Tropaeolum majus) as photosensitizer in dye-sensitized solar cells

Optik ◽  
2021 ◽  
pp. 167331
Author(s):  
Shalini Singh ◽  
Ishwar Chandra Maurya ◽  
Shubham Sharma ◽  
Shiva Prakash Singh Kushwaha ◽  
Pankaj Srivastava ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Natural Dyes ◽  
Dye Sensitized ◽  
Tropaeolum Majus ◽  
Sensitized Solar Cells

Role of Pristine and Acid-Functionalized Fullerene on Breaking Dye Aggregates and its Impact on the Efficiency of Solar Cells

2014 ◽  
Vol 67 (5) ◽  
pp. 819
Author(s):  
Syed Mujtaba Shah ◽  
Zafar Iqbal ◽  
Muzaffar Iqbal ◽  
Naila Shahzad ◽  
Amina Hana ◽  
...  
Keyword(s):  
Solar Cells ◽  
Zno Nanoparticles ◽  
Self Assembly ◽  
Zno Nanorods ◽  
Active Material ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Transmission Electron ◽  
Sensitized Solar Cells

Porphyrin dyes have an inherent tendency to aggregate. This leads to a self-quenching phenomenon that hinders electron transfer to the conduction band of semiconductors in dye-sensitized solar cells. Self-quenching adversely affects the efficiency of solar cells. Here, we report the interaction of porphyrin with pristine and acid-functionalized fullerene molecules on the surface of ZnO nanoparticles under chemisorbed conditions. Chemisorption of porphyrin only on ZnO nanoparticles instigates aggregation of the porphyrin molecules. These aggregates can be effectively broken by chemisorbing fullerene molecules on the surface of the ZnO nanoparticles. This is due to self-assembly formation processes because of porphyrin–fullerene interactions. The nanohybrid material, consisting of ZnO nanorods, acid-functionalized porphyrin, and fullerene derivatives, was characterized by UV–visible spectroscopy, fourier transform infrared spectroscopy, fluorescence spectroscopy, and transmission electron microscopy. The material generates better performing dye-sensitized solar cells when compared with those fabricated from porphyrin-based photo-active material.

scholarly journals Natural Dyes: From Cotton Fabrics to Solar Cells

2021 ◽  
Author(s):  
Indriana Kartini ◽  
Adhi Dwi Hatmanto
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Cotton Fabrics ◽  
Natural Dye ◽  
Natural Dyes ◽  
Oxide Surface ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

This article will discuss natural dyes’ role, from colouring the cotton fabrics with some functionality to harvesting sunlight in the dye-sensitized solar cells. Natural dye colourants are identical to the low light- and wash-fastness. Therefore, an approach to improving the colourant’s physical properties is necessary. Colouring steps employing silica nanosol and chitosan will be presented. The first part will be these multifunctional natural dye coatings on cotton fabrics. Then, functionality such as hydrophobic surfaces natural dyed cotton fabrics will be discussed. Natural dyes are also potential for electronic application, such as solar cells. So, the second part will present natural dyes as the photosensitizers for solar cells. The dyes are adsorbed on a semiconductor oxide surface, such as TiO2 as the photoanode. Electrochemical study to explore natural dyes’ potential as sensitizer will be discussed, for example, natural dyes for Batik. Ideas in improving solar cell efficiency will be discussed by altering the photoanode’s morphology. The ideas to couple the natural dyes with an organic–inorganic hybrid of perovskite and carbon dots are then envisaged.

TiO2-based dye-sensitized solar cells prepared with bixin and norbixin natural dyes: Effect of 2,2’-bipyridine additive on the current and voltage

Optik ◽  
2020 ◽  
Vol 218 ◽  
pp. 165236
Author(s):  
I.C. Carvalho ◽  
M.L. Barbosa ◽  
M.J.S. Costa ◽  
E. Longo ◽  
L.S. Cavalcante ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Natural Dyes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Dye-sensitized solar cells with natural dyes extracted from plant seeds

2014 ◽  
Vol 32 (4) ◽  
pp. 547-554 ◽  
Author(s):  
Hatem El-Ghamri ◽  
Taher El-Agez ◽  
Sofyan Taya ◽  
Monzir Abdel-Latif ◽  
Amal Batniji
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Tio2 Film ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Short Circuit Current ◽  
Natural Dyes ◽  
Plant Seeds ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

AbstractThe application of natural dyes extracted from plant seeds in the fabrication of dye-sensitized solar cells (DSSCs) has been explored. Ten dyes were extracted from different plant seeds and used as sensitizers for DSSCs. The dyes were characterized using UV-Vis spectrophotometry. DSSCs were prepared using TiO2 and ZnO nanostructured mesoporous films. The highest conversion efficiency of 0.875 % was obtained with an allium cepa (onion) extract-sensitized TiO2 solar cell. The process of TiO2-film sintering was studied and it was found that the sintering procedure significantly affects the response of the cell. The short circuit current of the DSSC was found to be considerably enhanced when the TiO2 semiconducting layer was sintered gradually.

Green-emitting Lu3Al5O12:Ce3+ phosphor as a visible light amplifier for dye-sensitized solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (31) ◽  
pp. 24737-24741 ◽  
Author(s):  
Gill Sang Han ◽  
Young Hyun Song ◽  
Dong Hoe Kim ◽  
Min-Ji Lee ◽  
Dong Geon Lee ◽  
...  
Keyword(s):  
Solar Cells ◽  
Visible Light ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Light Amplifier ◽  
Sensitized Solar Cells

A down convertor Lu3Al5O12:Ce3+ (LuAG) phosphor was used as a visible light amplifier for dye-sensitized solar cells (DSSCs).

Synthesis of 1D upconversion CeO2:Er, Yb nanofibers via electrospinning and their performance in dye-sensitized solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (54) ◽  
pp. 43328-43333 ◽  
Author(s):  
Jingyi Bai ◽  
Rongfang Zhao ◽  
Gui Han ◽  
Zhongcui Li ◽  
Guowang Diao
Keyword(s):  
Solar Cells ◽  
Visible Light ◽  
Light Harvesting ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Nir Light ◽  
Electrospinning Method ◽  
Harvesting Efficiency ◽  
Light Harvesting Efficiency ◽  
Sensitized Solar Cells

1D upconversion CeO2:Er, Yb nanofibers, which absorb NIR light and upconvert it to visible light to increase the photocurrent of DSSCs, have been fabricated by an electrospinning method. An enhancement of 14% in the light harvesting efficiency was observed.

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