Zno Nanorods/Nanoparticles: Novel Hydrothermal Synthesis, Characterization and Formation Mechanism for Increasing the Efficiency of Dye-Sensitized Solar Cells

2016 ◽  
Vol 27 (4) ◽  
pp. 1451-1462 ◽  
Author(s):  
Zabihullah Zarghami ◽  
Majid Ramezani ◽  
Kourosh Motevalli
2013 ◽  
Vol 117 (6) ◽  
pp. 2993-3001 ◽  
Author(s):  
Laurent Schlur ◽  
Anne Carton ◽  
Patrick Lévêque ◽  
Daniel Guillon ◽  
Geneviève Pourroy

2014 ◽  
Vol 67 (5) ◽  
pp. 819
Author(s):  
Syed Mujtaba Shah ◽  
Zafar Iqbal ◽  
Muzaffar Iqbal ◽  
Naila Shahzad ◽  
Amina Hana ◽  
...  

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.


RSC Advances ◽  
2020 ◽  
Vol 10 (46) ◽  
pp. 27615-27632 ◽  
Author(s):  
Marwa Ben Manaa ◽  
Noureddine Issaoui ◽  
Youssef O. Al-Ghamdi ◽  
Hafedh Belmabrouk ◽  
Abdelmottaleb Ben Lamine

Adsorption isotherms of N719 dye on (a) ZNP and (b) ZNR and the molecular electrostatic potential (MEP) map of (c) N719 dye and (d) ZnO.


RSC Advances ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 2358-2364 ◽  
Author(s):  
Hadja Fatima Mehnane ◽  
Changlei Wang ◽  
Kiran Kumar Kondamareddy ◽  
Wenjing Yu ◽  
Weiwei Sun ◽  
...  

Strontium (Sr) doped TiO2 nanoparticles are investigated with a view to studying the performance parameters of dye sensitized solar cells (DSSCs).


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