NDLI: Effect of TiO2 blocking layer synthesised by a sol–gel method in performances of fluorine-doped tin oxide/TiO2/dyed-TiO2/electrolyte/pt/fluorine-doped tin oxide solar cells based on natural mallow dye

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Effect of TiO2 blocking layer synthesised by a sol–gel method in performances of fluorine-doped tin oxide/TiO2/dyed-TiO2/electrolyte/pt/fluorine-doped tin oxide solar cells based on natural mallow dye

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Volume 11 (2016) : Issue 1, Jan

The Journal of Engineering

Effect of TiO2 blocking layer synthesised by a sol–gel method in performances of fluorine-doped tin oxide/TiO2/dyed-TiO2/electrolyte/pt/fluorine-doped tin oxide solar cells based on natural mallow dye

Content Provider	IET Digital Library
Author	Kadachi, Zouhour Karoui, Moufida Ben Azizi, Tarek Gharbi, Rached
Abstract	Titanium dioxide (TiO2) thin film prepared by sol–gel technique and deposed by spin coating was used as the blocking layer between fluorine doped tin oxide and dyed TiO2 photoanode deposed by doctor blade in dye-sensitised solar cell (DSSC). The synthesised films show a polycrystalline structure at annealing temperature of 400°C with small amount of amorphous phase observed at 300°C. The values of the electrical conductivity varies from 0.11 to 1.17 Ω−1 cm−1 for one and two layers thin films, respectively, and the corresponding activation energies decreased as a function of the thickness, it passes from 109 meV for one layer to 55 meV for two layers. The photoanode of the DSSC was sensitised by the mallow diluted in ethanol having absorption spectra with two peaks, one around 480 nm (blue light) and the second at 665 nm (red light) attributable to the chlorophyll mixture. Improvement of the electrical performance is due to the increased electron lifetime and decreased of the recombination process showed by the open circuit voltage decay measurement. The lifetime values increase from 0.80 ms for the cell without blocking layer to 1.24 ms for the cell based on the blocking layer.
Starting Page	94
Ending Page	98
Page Count	5
Volume Number	11
e-ISSN	17500443
Issue Number	Issue 2, Feb (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/mnl/11/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/mnl.2015.0154
Journal	Micro & Nano Letters
Publisher Date	2016-02-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Absorption Spectra Activation Energies Amorphous Phase Annealing Processes Annealing Temperature Blocking Layer Effect Carrier Lifetime Charge Carriers Chlorophyll Mixture Deposition from Liquid Phase (melts And Solutions) Dye-sensitised Solar Cell Electrical Conductivity Electrochemistry And Electrophoresis Electrolyte Electron Lifetime Epitaxy Ethanol Fluorine Generation Lifetime And Trapping Method of Preparation of Material Open Circuit Voltage Decay Measurement Photoanode Photoelectrochemical Conversion Polycrystalline Structure Recombination Recombination Process Semiconductor Thin Film SemiConductor/Insulator Sol Gel Processing Solar Cell And Array Sol–gel Method Spin Coating Structure Temperature 300 DegC to 400 DegC Thin Film Growth Tin Compound TiO2-SnO:F Titanium Compound Titanium Dioxide Thin Film
Content Type	Text
Resource Type	Article

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