scholarly journals Influence of Tin Doped TiO2 Nanorods on Dye Sensitized Solar Cells

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6282
Author(s):  
Sandeep B. Wategaonkar ◽  
Vinayak G. Parale ◽  
Sawanta S. Mali ◽  
Chang-Kook Hong ◽  
Rani P. Pawar ◽  
...  
Keyword(s):  
Thin Films ◽  
Photoelectron Spectroscopy ◽  
Dye Sensitized Solar Cells ◽  
Rutile Phase ◽  
Tio2 Thin Films ◽  
Doped Tio2 ◽  
X Ray ◽  
Dye Sensitized ◽  
The One ◽  
Energy Conversion Devices

The one-step hydrothermal method was used to synthesize Sn-doped TiO2 (Sn-TiO2) thin films, in which the variation in Sn content ranged from 0 to 7-wt % and, further, its influence on the performance of a dye-sensitized solar cell (DSSC) photoanode was studied. The deposited samples were analyzed by X-ray diffraction (XRD) and Raman spectroscopy, which confirmed the existence of the rutile phase of the synthesized samples with crystallite size ranges in between 20.1 to 22.3 nm. In addition, the bare and Sn-TiO2 thin films showed nanorod morphology. A reduction in the optical band gap from 2.78 to 2.62 eV was observed with increasing Sn content. The X-ray photoelectron spectroscopy (XPS) analysis confirmed Sn4+ was successfully replaced at the Ti4+ site. The 3-wt % Sn-TiO2 based DSSC showed the optimum efficiency of 4.01%, which was superior to 0.87% of bare and other doping concentrations of Sn-TiO2 based DSSCs. The present work reflects Sn-TiO2 as an advancing material with excellent capabilities, which can be used in photovoltaic energy conversion devices.

Charge Transmission and Recombination in the Dye-Sensitized Solar Cells Based on Mn-Doped TiO2 Thin Films

2012 ◽  
Vol 519 ◽  
pp. 53-56
Author(s):  
Qiu Ping Liu ◽  
Yang Zhou ◽  
Hui Juan Huang ◽  
Quan Jiang Guo ◽  
Xian Hui Zhao ◽  
...  
Keyword(s):  
Thin Film ◽  
Photoelectron Spectroscopy ◽  
Dye Sensitized Solar Cells ◽  
Oxide Glass ◽  
Doped Tio2 ◽  
X Ray ◽  
Dye Sensitized ◽  
Photovoltaic Efficiency ◽  
Sensitized Solar Cells ◽  
Mn Doped

Abstract:Mn salts[MnSO4]-doped TiO2 electrodes thin film was synthesized by the hydrothermal method. To prepare the working electrode, The TiO2 or Mn-doped TiO2 slurry was coated onto the fluorine-doped tin oxide glass substrate by the doctor blade method and was then sintered at 450 °C. X-ray photoelectron spectroscopy (XPS) data indicated that the doped Mn ions exist in forms of Mn7+. This study show a photovoltaic efficiency of 5.15%, which is higher than that of the undoped TiO2 thin film (4.14%) and increase photovoltage and fill factors by 13.2% from 455 mV to 515mV, 39.3% from 499 to 695 respectively.

scholarly journals Incorporation of Kojic Acid-Azo Dyes on TiO2 Thin Films for Dye Sensitized Solar Cells Applications

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Carolynne Zie Wei Sie ◽  
Zainab Ngaini
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Azo Dyes ◽  
Kojic Acid ◽  
Organic Dyes ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Thin Films ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Sensitization of heavy metal free organic dyes onto TiO2 thin films has gained much attention in dye sensitized solar cells (DSSCs). A series of new kojic acid based organic dyes KA1–4 were synthesized via nucleophilic substitution of azobenzene bearing different vinyl chains A1–4 with kojyl chloride 4. Azo dyes KA1–4 were characterized for photophysical properties employing absorption spectrometry and photovoltaic characteristic in TiO2 thin film. The presence of vinyl chain in A1–4 improved the photovoltaic performance from 0.20 to 0.60%. The introduction of kojic acid obtained from sago waste further increases the efficiency to 0.82–1.54%. Based on photovoltaic performance, KA4 achieved the highest solar to electrical energy conversion efficiency (η = 1.54%) in the series.

CuO Nanostructure by Oxidization of Copper Thin Films

2008 ◽  
Vol 55-57 ◽  
pp. 645-648
Author(s):  
Phathaitep Raksa ◽  
A. Gardchareon ◽  
N. Mangkorntong ◽  
Supab Choopun
Keyword(s):  
Thin Films ◽  
Oxidation Reaction ◽  
Dye Sensitized Solar Cells ◽  
X Ray Diffraction ◽  
Copper Thin Film ◽  
X Ray ◽  
Sem Image ◽  
Dye Sensitized ◽  
Cuo Nanostructure ◽  
Sensitized Solar Cells

CuO nanostructures were synthesized by oxidizing copper thin films. The copper thin film was grown on alumina substrates by evaporation copper powder at pressure of 0.04 mtorr. The copper thin films were then oxidized 800, and 900oC for 12, 24 and 48 hr, respectively. The obtained CuO nanostructures were investigated by Energy Dispersive Spectroscopy (EDS), Field Emission Scanning Electron Microscope (FE-SEM) image, and X-Ray Diffraction (XRD). The diameter of CuO nanostructure is around 100-600 nanometers and it is depends on oxidation reaction time and temperature. These CuO nanostructures have a potential application for nanodevices such as nano gas sensor or dye-sensitized solar cells.

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