Fabrication of dye Rhoeospathacea with concentration variation in dye-sensitized solar cells (DSSC)

2017 ◽  
Vol 1 (1) ◽  
pp. 83
Author(s):  
Sri Sumardiasih ◽  
Agus Supriyanto ◽  
C Cari

<p class="Abstract">Dye-sensitized solar cell (DSSC) is a device that directly converts visible light into electrical energy. In this work we used dye was extracted from Rhoeo spathacea. A natural dye was directly mixed with TiO<sub>2 </sub>anatase to obtain <em>dyed titanium dioxide</em> which can be used as photoanode for DSSC by varying the volume of dye. The first variation is 2 ml dye mixed with 1 ml of TiO<sub>2</sub>, and the second variation is 3 ml dye mixed with 1 ml of TiO<sub>2</sub>. The absorbance spectra of the dye and dye titanium dioxide have been investigated by spectroscopy UV-<em>Visible Lambda </em>25 and the conversion efficiency of dye titanium dioxide used Keithley 2602A meter. The DSSC based on dye titanium dioxide with varying volume of dye showed that the efficiency of the the second variation is 0,033% which is higher than the first variation (0,023%) as obtained from I-V characterization.</p><p class="Abstract"> </p>

2017 ◽  
Vol 1 (1) ◽  
pp. 83
Author(s):  
Sri Sumardiasih ◽  
Agus Supriyanto ◽  
C Cari

<p class="Abstract">Dye-sensitized solar cell (DSSC) is a device that directly converts visible light into electrical energy. In this work we used dye was extracted from Rhoeo spathacea. A natural dye was directly mixed with TiO<sub>2 </sub>anatase to obtain <em>dyed titanium dioxide</em> which can be used as photoanode for DSSC by varying the volume of dye. The first variation is 2 ml dye mixed with 1 ml of TiO<sub>2</sub>, and the second variation is 3 ml dye mixed with 1 ml of TiO<sub>2</sub>. The absorbance spectra of the dye and dye titanium dioxide have been investigated by spectroscopy UV-<em>Visible Lambda </em>25 and the conversion efficiency of dye titanium dioxide used Keithley 2602A meter. The DSSC based on dye titanium dioxide with varying volume of dye showed that the efficiency of the the second variation is 0,033% which is higher than the first variation (0,023%) as obtained from I-V characterization.</p><p class="Abstract"> </p>


2015 ◽  
Vol 1119 ◽  
pp. 14-18
Author(s):  
Sofia Javed ◽  
Muhammad Aftab Akram ◽  
Mohammad Mujahid

Nanoflowers are desirable in light driven applications like Dye Sensitized Solar Cells (DSSCs) due to their large surface area and greater light absorption capabilities. An instant, simple, cheap and environment friendly method of preparing titanium dioxide nanoflowers is presented. The nanoflowers are produced in a time as short as 5 minutes in aqueous conditions without the use of hazardous hydrofluoric acid or organic surfactants at 1 atm. pressure and low temperature of 100°C. Titanium dioxide commercial nanopowders are treated with microwaves in an aqueous sodium hydroxide solution for small durations. The resulting powders are annealed at 450°C in air and characterization is performed using XRD, SEM and Raman spectroscopy.


2013 ◽  
Vol 68 (1) ◽  
pp. 34-37 ◽  
Author(s):  
N. V. Golubko ◽  
Yu. E. Roginskaya ◽  
A. E. Ozimova ◽  
D. Yu. Godovskii ◽  
D. Yu. Paraschuk

2015 ◽  
Vol 347 ◽  
pp. 636-642 ◽  
Author(s):  
Penglei Su ◽  
Hongyi Li ◽  
Jinshu Wang ◽  
Junshu Wu ◽  
Bingxin Zhao ◽  
...  

2019 ◽  
Vol 18 ◽  
pp. 553-561 ◽  
Author(s):  
Jung-Chuan Chou ◽  
Cheng-Chu Ko ◽  
Po-Yu Kuo ◽  
Chih-Hsien Lai ◽  
Yu-Hsun Nien ◽  
...  

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1598
Author(s):  
Qiang Zhang ◽  
Shengwen Hou ◽  
Chaoyang Li

Well-arrayed zinc oxide nanorods applied as photoelectrodes for dye-sensitized solar cells were synthesized on an aluminum-doped zinc oxide substrate by the multi-annealing method. In order to improve the chemical stability and surface-to-volume ratio of photoanodes in dye-sensitized solar cells, the synthesized zinc oxide nanorods were coated with pure anatase phase titanium dioxide film using a novel mist chemical vapor deposition method. The effects of the titanium dioxide film on the morphological, structural, optical, and photovoltaic properties of zinc oxide–titanium dioxide core–shell nanorods were investigated. It was found that the diameter and surface-to-volume ratio of zinc oxide nanorods were significantly increased by coating them with titanium dioxide thin film. The power conversion efficiency of dye-sensitized solar cells was improved from 1.31% to 2.68% by coating titanium dioxide film onto the surface of zinc oxide nanorods.


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