Incorporation of Al-(hydr)oxide species onto the surface of TiO 2  nanoparticles: Improving the open-circuit voltage in dye-sensitized solar cells

Aguilar, Teresa; Navas, Javier; Fernández‐Lorenzo, Concha; Alcántara, Rodrigo; Gallardo, Juan Jesús; Santos, Desireé M. de los; Martín‐Calleja, Joaquin

doi:10.1016/j.tsf.2015.02.045

Cited by 5 publications

(3 citation statements)

References 36 publications

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“…The samples studied were TiO 2 thin films deposited onto a conductor glass in the same way as the procedure used to assemble a DSSC in our laboratory. 17–20 This enabled the material to be studied in identical conditions to its use in this type of device. The procedure followed to deposit the TiO 2 film can be resumed in the following steps: Obtain a titanium dioxide nanoparticle suspension: the suspension is composed of a mixture of 1 g of TiO 2 nanoparticles (Degussa P25), 0.4 g of polyethylene glycol (Panreac, MW: 6000), 5 ml of ethanol absolute (Panreac, purity 99.5%) and 1 ml of nitric acid solution (Panreac, purity 65%) with a pH = 3–4.…”

Section: Methodsmentioning

confidence: 99%

“…The samples studied were TiO 2 thin films deposited onto a conductor glass in the same way as the procedure used to assemble a DSSC in our laboratory. [17][18][19][20] This enabled the material to be studied in identical conditions to its use in this type of device. The procedure followed to deposit the TiO 2 film can be resumed in the following steps:…”

Section: Experimental Samplesmentioning

confidence: 99%

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Micro-Raman Spectroscopy for the Determination of Local Temperature Increases in TiO₂ Thin Films due to the Effect of Radiation

et al. 2016

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This study applied a classic method involving Raman spectroscopy and the use of Stokes and anti-Stokes peaks to measure the temperature of TiO2 thin films found in dye-sensitized solar cells (DSSCs). In addition, three mathematical formulae were used and analyzed to estimate the increase in temperature generated solely by the effect of the radiation. The tests and calculations performed showed an increase in the temperature of the TiO2 film. That is, the films were heated by the radiation they were exposed to. A temperature increase of up to 30 K was detected for the sample with a single layer of TiO2, and over 40 K for the sample with three layers for the highest radiation powers used, and greater increases in temperature were observed in the thicker films.

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Section: Methodsmentioning

confidence: 99%

Section: Experimental Samplesmentioning

confidence: 99%

Micro-Raman Spectroscopy for the Determination of Local Temperature Increases in TiO₂ Thin Films due to the Effect of Radiation

et al. 2016

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“…In this study,t wo samples were studied;t hey were composed of TiO 2 films deposited onto aF TO-type conductor glass by using the same procedure used to assemble aD SSC in our laboratory. [14][15][16] Thus, the material studied is found under conditions that are equivalent to those in DSSCs.…”

Section: Experimental Samplesmentioning

confidence: 99%

A Study of Overheating of Thermostatically Controlled TiO₂ Thin Films by Using Raman Spectroscopy

et al. 2015

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In this study a classic Raman spectroscopy method is applied and the intensity ratio of Stokes and anti-Stokes peaks is used to measure the temperature of thermostatically controlled TiO2 thin films. In addition, three mathematical formulae are used and analyzed to estimate the temperature of the TiO2 thin films. Overheating of the samples above the thermostatically controlled temperature was observed while recording the Raman spectra, with a temperature increase of up to 30 K being detected. DFT-periodic calculations showed that the anatase (101) surface had a smaller band gap than bulk anatase. Thus, it can absorb the laser radiation with a wavelength of 532 nm that is used in the experimental setup. Part of the absorbed photon energy transfers into phonon energy, heating up the anatase phase, thus leading to the heating of the samples. Moreover, overheating of the samples indicates that the experimental method used in this study can lead to deviations in their real absolute temperature values.

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Photoanode modified with nanostructures for efficiency enhancement in DSSC: a review

Kumar

Chhalodia²,

Bedi³

et al. 2022

Carbon Lett.

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Incorporation of Al-(hydr)oxide species onto the surface of TiO 2 nanoparticles: Improving the open-circuit voltage in dye-sensitized solar cells

Cited by 5 publications

References 36 publications

Micro-Raman Spectroscopy for the Determination of Local Temperature Increases in TiO₂ Thin Films due to the Effect of Radiation

Micro-Raman Spectroscopy for the Determination of Local Temperature Increases in TiO₂ Thin Films due to the Effect of Radiation

A Study of Overheating of Thermostatically Controlled TiO₂ Thin Films by Using Raman Spectroscopy

Photoanode modified with nanostructures for efficiency enhancement in DSSC: a review

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Incorporation of Al-(hydr)oxide species onto the surface of TiO 2 nanoparticles: Improving the open-circuit voltage in dye-sensitized solar cells

Cited by 5 publications

References 36 publications

Micro-Raman Spectroscopy for the Determination of Local Temperature Increases in TiO2 Thin Films due to the Effect of Radiation

Micro-Raman Spectroscopy for the Determination of Local Temperature Increases in TiO2 Thin Films due to the Effect of Radiation

A Study of Overheating of Thermostatically Controlled TiO2 Thin Films by Using Raman Spectroscopy

Photoanode modified with nanostructures for efficiency enhancement in DSSC: a review

Contact Info

Product

Resources

About

Micro-Raman Spectroscopy for the Determination of Local Temperature Increases in TiO₂ Thin Films due to the Effect of Radiation

Micro-Raman Spectroscopy for the Determination of Local Temperature Increases in TiO₂ Thin Films due to the Effect of Radiation

A Study of Overheating of Thermostatically Controlled TiO₂ Thin Films by Using Raman Spectroscopy