scholarly journals Highly enhanced solar conversion efficiency of novel layer-by-layer PbS:Hg and CdS quantum dots-sensitized ZnO thin films prepared by sol–gel spin coating

2018 ◽  
Vol 41 (6) ◽  
Author(s):  
MANGESH LANJEWAR ◽  
JIGNASA V GOHEL
Keyword(s):  
Thin Films ◽  
Quantum Dots ◽  
Conversion Efficiency ◽  
Spin Coating ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Layer By Layer ◽  
Cds Quantum Dots ◽  
Solar Conversion ◽  
Solar Conversion Efficiency

scholarly journals Nanoporous ZnO Photoelectrode for Dye-Sensitized Solar Cell

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Bayram Kılıç ◽  
Emre Gür ◽  
Sebahattin Tüzemen
Keyword(s):  
Thin Films ◽  
Conversion Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Zno Thin Films ◽  
Large Area ◽  
Self Assembled Monolayer ◽  
Dye Sensitized ◽  
Solar Conversion ◽  
Sensitized Solar Cells ◽  
Solar Conversion Efficiency

Nanoporous and macroporous structures were prepared by using self-assembled monolayer (SAM) onto ZnO thin films in order to investigate the efficiency of dye-sensitized solar cells (DSSCs) produced using these films. Using SAM on ZnO thin films, it is obtained successfully assembled large-area, highly ordered porous ZnO thin films. Varying nanoporous radius is observed between 20 and 50 nm sizes, while it is 500–800 nm for macroporous radius. The solar conversion efficiency of 2.75% and IPCE of 29% was obtained using ZnO nanoporous/N719 dye/I−/I3-electrolyte, while macroporous ZnO given solar conversion efficiency of 2.22% and IPCE of 18%.

scholarly journals Preparation of Glass Plate-Supported Nanostructure ZnO Thin Film Deposited by Sol-Gel Spin-Coating Technique and Its Photocatalytic Degradation to Monoazo Textile Dye

2008 ◽  
Vol 2008 ◽  
pp. 1-5 ◽  
Author(s):  
Mohammad Hossein Habibi ◽  
Mohammad Khaledi Sardashti
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Photocatalytic Degradation ◽  
Spin Coating ◽  
Sol Gel ◽  
Glass Plate ◽  
Zno Thin Films ◽  
Visible Range ◽  
Textile Dye ◽  
Axis Orientation

Glass plate-supported nanostructure ZnO thin films were deposited by sol-gel spin coating. Films were preheated at275∘Cfor 10 minutes and annealed at 350, 450, and550∘Cfor 80 minutes. The ZnO thin films were transparent ca 80–90% in visible range and revealed that absorption edges at about 370 nm. Thec-axis orientation improves and the grain size increases which was indicated by an increase in intensity of the (002) peak at34.4∘in XRD corresponding to the hexagonal ZnO crystal. The photocatalytic degradation of X6G an anionic monoazo dye, in aqueous solutions, was investigated and the effects of some operational parameters such as the number of layer and reusability of ZnO nanostructure thin film were examined. The results showed that the five-layer coated glass surfaces have a very high photocatalytic performance.

Multifractal analysis of Mg‐doped ZnO thin films deposited by sol–gel spin coating method

2021 ◽  
Author(s):  
Ştefan Ţălu ◽  
Samah Boudour ◽  
Idris Bouchama ◽  
Bandar Astinchap ◽  
Hamta Ghanbaripour ◽  
...  
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Multifractal Analysis ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Spin Coating Method ◽  
Coating Method ◽  
Doped Zno ◽  
Mg Doped

Optical Properties of Nanostructured Zinc Oxides Deposited on Silicon Substrates

2011 ◽  
Vol 312-315 ◽  
pp. 1132-1136 ◽  
Author(s):  
Mohamad Hafiz Mamat ◽  
Zuraida Khusaimi ◽  
Mohamad Mahmood Rusop
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Spin Coating ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Silicon Substrates ◽  
Annealing Temperatures ◽  
Uv Emission ◽  
Zinc Oxides ◽  
Optically Transparent

Nanostructured zinc oxide (ZnO) thin films were prepared through sol-gel method and spin-coating technique. ZnO thin films then were annealed at temperature of 350°C, 400°C, 450°C and 500°C. The thin films were characterized using field emission scanning electron microscope (FESEM), UV-VIS-NIR spectrophotometer and photoluminescence (PL) spectrofluorometer for morphology and optical properties study. The morphology study indicates that the particle size of ZnO increased with annealing temperatures. All thin films are optically transparent (~ 80 % in transmittance) in the visible light-NIR region. PL spectra reveal improved UV emission with annealing temperatures up to 500°C.

Effect of different sol concentrations on the properties of nanocrystalline ZnO thin films grown on FTO substrates by sol-gel spin-coating

2014 ◽  
Vol 65 (4) ◽  
pp. 480-486 ◽  
Author(s):  
Ikhyun Kim ◽  
Younggyu Kim ◽  
Giwoong Nam ◽  
Dongwan Kim ◽  
Minju Park ◽  
...  
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Sol Gel ◽  
Zno Thin Films
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