Defects in Chemically Synthesized and Thermally Processed ZnO Nanorods: Implications for Active Layer Properties in Dye-Sensitized Solar Cells

2014 ◽  
Vol 53 (8) ◽  
pp. 3961-3972 ◽  
Author(s):  
Partha Pratim Das ◽  
Shruti A. Agarkar ◽  
Soumita Mukhopadhyay ◽  
Unnikrishnan Manju ◽  
Satishchandra B. Ogale ◽  
...  
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Zno Nanorods ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Thermally Processed ◽  
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.

Fabrication of highly electro catalytic active layer of multi walled carbon nanotube/enzyme for Pt-free dye sensitized solar cells

2015 ◽  
Vol 349 ◽  
pp. 174-183 ◽  
Author(s):  
Alvira Ayoub Arbab ◽  
Kyung Chul Sun ◽  
Iftikhar Ali Sahito ◽  
Muhammad Bilal Qadir ◽  
Sung Hoon Jeong
Keyword(s):  
Solar Cells ◽  
Carbon Nanotube ◽  
Active Layer ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Multi Walled Carbon Nanotube ◽  
Sensitized Solar Cells

scholarly journals A microscopic and macroscopic investigation of the adsorption of N719 dye on ZnO nanopowders (ZNP) and ZnO nanorods (ZNR) for dye sensitized solar cells using statistical physics treatment and DFT simulation

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
Keyword(s):  
Solar Cells ◽  
Adsorption Isotherms ◽  
Electrostatic Potential ◽  
Statistical Physics ◽  
Molecular Electrostatic Potential ◽  
Zno Nanorods ◽  
Dye Sensitized Solar Cells ◽  
Dft Simulation ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

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.

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