Application of natural dyes in dye-sensitized solar cells

2022 ◽  
pp. 45-73
Author(s):  
Usman Ahmed ◽  
Ayaz Anwar
Optik ◽  
2021 ◽  
pp. 167331
Author(s):  
Shalini Singh ◽  
Ishwar Chandra Maurya ◽  
Shubham Sharma ◽  
Shiva Prakash Singh Kushwaha ◽  
Pankaj Srivastava ◽  
...  

2021 ◽  
Author(s):  
Indriana Kartini ◽  
Adhi Dwi Hatmanto

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.


Optik ◽  
2020 ◽  
Vol 218 ◽  
pp. 165236
Author(s):  
I.C. Carvalho ◽  
M.L. Barbosa ◽  
M.J.S. Costa ◽  
E. Longo ◽  
L.S. Cavalcante ◽  
...  

2014 ◽  
Vol 32 (4) ◽  
pp. 547-554 ◽  
Author(s):  
Hatem El-Ghamri ◽  
Taher El-Agez ◽  
Sofyan Taya ◽  
Monzir Abdel-Latif ◽  
Amal Batniji

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.


RSC Advances ◽  
2016 ◽  
Vol 6 (88) ◽  
pp. 85125-85134 ◽  
Author(s):  
S. Akın ◽  
S. Açıkgöz ◽  
M. Gülen ◽  
C. Akyürek ◽  
S. Sönmezoğlu

In this study, nine different natural dyes having various anchoring groups were extracted from various plants and used as photo-sensitizers in DSSC applications. The photovoltaic parameters were investigated as a function of these anchoring groups.


Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 219
Author(s):  
Ji-Hye Kim ◽  
Dong-Hyuk Kim ◽  
Ju-Hee So ◽  
Hyung-Jun Koo

Due to their low cost, facile fabrication, and high-power conversion efficiency (PCE), dye-sensitized solar cells (DSSCs) have attracted much attention. Ruthenium (Ru) complex dyes and organic solvent-based electrolytes are typically used in high-efficiency DSSCs. However, Ru dyes are expensive and require a complex synthesis process. Organic solvents are toxic, environmentally hazardous, and explosive, and can cause leakage problems due to their low surface tension. This review summarizes and discusses previous works to replace them with natural dyes and water-based electrolytes to fabricate low-cost, safe, biocompatible, and environmentally friendly DSSCs. Although the performance of “eco-friendly DSSCs” remains less than 1%, continuous efforts to improve the PCE can accelerate the development of more practical devices, such as designing novel redox couples and photosensitizers, interfacial engineering of photoanodes and electrolytes, and biomimetic approaches inspired by natural systems.


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