Effects of Oxide Nanoparticle Size and Shape on Electronic Structure, Charge Transport, and Recombination in Dye-Sensitized Solar Cell Photoelectrodes

2014 ◽  
Vol 118 (30) ◽  
pp. 16791-16798 ◽  
Author(s):  
M. Hosni ◽  
Y. Kusumawati ◽  
S. Farhat ◽  
N. Jouini ◽  
Th. Pauporté
Keyword(s):  
Electronic Structure ◽  
Solar Cell ◽  
Charge Transport ◽  
Nanoparticle Size ◽  
Dye Sensitized Solar Cell ◽  
Size And Shape ◽  
Dye Sensitized ◽  
Oxide Nanoparticle

First-Principles Modeling of the Adsorption Geometry and Electronic Structure of Ru(II) Dyes on Extended TiO2 Substrates for Dye-Sensitized Solar Cell Applications

2010 ◽  
Vol 114 (13) ◽  
pp. 6054-6061 ◽  
Author(s):  
Filippo De Angelis ◽  
Simona Fantacci ◽  
Annabella Selloni ◽  
Mohammad K. Nazeeruddin ◽  
Michael Grätzel
Keyword(s):  
Electronic Structure ◽  
Solar Cell ◽  
First Principles ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Adsorption Geometry

Demagnetization field driven charge transport in a TiO2 based dye sensitized solar cell

Solar Energy ◽  
2019 ◽  
Vol 187 ◽  
pp. 281-289 ◽  
Author(s):  
U.M. Kannan ◽  
L. Giribabu ◽  
S. Narayana Jammalamadaka
Keyword(s):  
Solar Cell ◽  
Charge Transport ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized

Electroanalytical investigation of the losses during interfacial charge transport in dye-sensitized solar cell

Solar Energy ◽  
2016 ◽  
Vol 129 ◽  
pp. 207-216 ◽  
Author(s):  
Pankaj Yadav ◽  
Kavita Pandey ◽  
Brijesh Tripathi ◽  
P.V.V. Jayaweera ◽  
S. Kaneko ◽  
...  
Keyword(s):  
Solar Cell ◽  
Charge Transport ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Interfacial Charge

scholarly journals Enhancement of Charge Transport of a Dye-Sensitized Solar Cell Utilizing TiO2 Quantum Dot Photoelectrode Film

Coatings ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1442
Author(s):  
Siti Nur Azella Zaine ◽  
Norani Muti Mohamed ◽  
Mehboob Khatani ◽  
Muhammad Umair Shahid
Keyword(s):  
Solar Cell ◽  
Quantum Dot ◽  
Charge Transport ◽  
Surface Area ◽  
Sol Gel ◽  
Dye Sensitized Solar Cell ◽  
Electron Trapping ◽  
Electron Recombination ◽  
Dye Sensitized ◽  
Dye Absorption

A dye-sensitized solar cell (DSC) is the third generation of solar technology, utilizing TiO2 nanoparticles with sizes of 20–30 nm as the photoelectrode material. The integration of smaller nanoparticles has the advantage of providing a larger surface area, yet the presence of grain boundaries is inevitable, resulting in a higher probability of electron trapping. This study reports on the improvement of charge transport through the integration of quantum dot (QD) TiO2 with a size of less than 10 nm as the dye absorption photoelectrode layer. The QD TiO2 samples were synthesized through sol–gel and reflux methods in a controlled pH solution without surfactants. The synthesized samples were analyzed using microscopic, diffraction, absorption, as well as spectroscopic analyses. A current–voltage and impedance analysis was used to evaluate the performance of a DSC integrated with synthesized TiO2 as the photoelectrode material. The sample with smaller crystallite structures led to a large surface area and exhibited a higher dye absorption capability. Interestingly, a DSC integrated with QD TiO2 showed a higher steady-state electron density and a lower electron recombination rate. The shallow distribution of the trap state led to an improvement of the electron trapping/de-trapping process between the Fermi level and the conduction band of oxide photoelectrode material, hence improving the lifetime of generated electrons and the overall performance of the DSC.

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