Bismuth sulfide sensitized TiO2 arrays for photovoltaic applications

Solís, Mauricio; Rincón, Marina E.; Calva, Julio C.; Alvarado, González

doi:10.1016/j.electacta.2013.08.165

Cited by 30 publications

(17 citation statements)

References 37 publications

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“…Also, there is an apparent red shift in the absorption feature from P-30 to P-120, which is probably a consequence of increase in particle size of sensitizer with increase of deposition time and may be attributed to the aggregation of sensitizer on the surface of bare photoelectrode. This observation is in accordance with the other metal chalcogenides including Sb 2 Se 3 deposited with SILAR technique [9,16].…”

Section: Resultssupporting

confidence: 77%

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Sb2Se3 sensitized heterojunction solar cells

Kulkarni¹,

Arote

Pathan

et al. 2015

Mater Renew Sustain Energy

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The study deals with the sensitization of the porous SnO 2 films deposited on fluorine-doped tin oxide with nanocrystalline Sb 2 Se 3 . The sensitization was achieved for three different sensitization times employing chemical solution deposition with antimony chloride and sodium selenosulphate as precursors for Sb 3? and Se 2-, respectively. The unsensitized and sensitized photoelectrodes were characterized using X-ray diffractometry, scanning electron microscopy and diffused reflectance spectroscopy. The solar cells fabricated using three different photoelectrodes were characterized for their photovoltaic performance using the photocurrent density versus photovoltage curves. The study revealed that sensitization time significantly influences the photovoltaic parameters namely, short circuit current density (J sc ), open circuit voltage (V oc ) and fill factor (FF) and hence the photovoltaic efficiency (g).

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Section: Resultssupporting

confidence: 77%

“…7, which apparently rationalizes the poor values of photovoltage and photocurrent in C-120 and hence not incorporated in the Table 2. The same was confirmed by the Solis and CoWorkers [16].…”

Section: Photovoltaic Performance Analysissupporting

confidence: 72%

Sb2Se3 sensitized heterojunction solar cells

Kulkarni¹,

Arote

Pathan

et al. 2015

Mater Renew Sustain Energy

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“…In GO-TNTs and RGO-TNTs, carbon peaks were also observed together with Ti and oxygen peaks as shown in Figure 2b,c, respectively. In the EDX (Figure 2d), the deposit was mostly comprised of bismuth [31,32] EDX spectrum of Bi-TNTs (Figure 2d), the deposit was mostly comprised of bismuth [31,32]. These EDX results correspond to Sections 2.1.4 and 2.1.6.…”

Section: Energy Dispersive X-ray Spectroscopymentioning

confidence: 71%

“…This can be confirmed from AES results, which show that RGO, Bi, and GO were effectively composite on the surfaces of anodized TNTs. EDX spectrum of Bi-TNTs (Figure 2d), the deposit was mostly comprised of bismuth [31,32]. These EDX results correspond to Sections 2.1.4 and 2.1.6.…”

Section: Auger Electron Spectroscopymentioning

confidence: 88%

Continuous-Flow Photocatalytic Degradation of Organics Using Modified TiO2 Nanocomposites

Ali

Kim

2018

Catalysts

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Abstract:In this study, TiO 2 nanotubes (TNTs) were fabricated on a Ti sheet following the anodic oxidation method and were decorated with reduced graphene oxide (RGO), graphene oxide (GO), and bismuth (Bi) via electrodeposition. The surface morphologies, crystal structures, and compositions of the catalyst were characterized by field emission scanning electron microscopy, Auger electron spectroscopy, X-ray diffraction, photoluminance spectra, X-ray photoelectron spectroscopy, and energy dispersive X-ray spectroscopy. The TNTs loaded with RGO, GO, and Bi were used in a continuous-flow system as photocatalysts for the degradation of methylene blue (MB) dye. It was found that the TNTs are efficient photocatalysts for the removal of color from water; upon UV irradiation on TNTs, the MB removal ratio was~89%. Moreover, the photocatalytic activities of the decorated TNTs were higher than that of pristine TNTs in visible light. In comparison with TNTs, the rate of MB removal in visible light was increased by a factor of 3.4, 3.2, and 2.9 using RGO-TNTs, Bi-TNTs, and GO-TNTs, respectively. The reusability of the catalysts were investigated, and their quantum efficiencies were also calculated. The cylindrical anodized TNTs were excellent photocatalysts for the degradation of organic pollutants. Thus, it was concluded that the continuous-flow photocatalytic reactor comprising TNTs and modified TNTs is suitable for treating wastewater in textile industries.

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“…In fact, such a clogging of sensitizer results in decrease of the access of electrolyte into the pores of photoanode increasing the recombination probability in the film (Zhang et al 2009; Fig. 4 EDX spectrum of Bi 2 S 3-sensitized TiO 2 photoelectrodes P-10 to P-40 Appl Nanosci (2016) 6:567-574 571 Solis et al 2013). Though, there is enhancement in J sc due to increased sensitizer in the films, the recombination due to aggregation has apparently overpowered this enhancement in J sc leading to the decline in V oc .…”

Section: Photovoltaic Characterizationmentioning

confidence: 99%

TiO2 photoanode sensitized with nanocrystalline Bi2S3: the effect of sensitization time and annealing on its photovoltaic performance

Kulkarni¹,

Prasad

Pathan

et al. 2015

Appl Nanosci

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This work deals with the sensitization of the porous TiO 2 films of thickness about 4 lm deposited on fluorine-doped tin oxide with nanocrystalline Bi 2 S 3 for photovoltaic application. The sensitization was achieved for four different sensitization times employing chemical solution deposition with bismuth nitrate and sodium thiosulphate as precursors for Bi 3? and S 2-, respectively. The unsensitized and sensitized photoelectrodes were characterized using X-ray diffractometry, scanning electron microscopy and diffused reflectance spectroscopy. XRD patterns show the signatures of both anatase TiO 2 and orthorhombic Bi 2 S 3 in the sensitized photoanodes. However, crystallinity of Bi 2 S 3 increased with increase in sensitization time from 10 to 40 min. The temporal effect of sensitization and annealing on the photovoltaic performance of the solar cells fabricated using four different photoelectrodes was studied using the photocurrent density versus photovoltage curves. Annealing apparently improved the photovoltaic performance of photoanodes. The best performance was obtained for cell fabricated using annealed TiO 2 /Bi 2 S 3 photoanode after 30 min sensitization time showing V oc * 0.37 mV, J sc * 0.52 mA/cm 2 , FF * 68 and 0.43 %.

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Bismuth sulfide sensitized TiO2 arrays for photovoltaic applications

Cited by 30 publications

References 37 publications

Sb2Se3 sensitized heterojunction solar cells

Sb2Se3 sensitized heterojunction solar cells

Continuous-Flow Photocatalytic Degradation of Organics Using Modified TiO2 Nanocomposites

TiO2 photoanode sensitized with nanocrystalline Bi2S3: the effect of sensitization time and annealing on its photovoltaic performance

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