Effect of co-sensitization of CdSe nanoparticles with N3 dye on TiO2 nanotubes

Soosaimanickam, Ananthakumar; Ramkumar, J.; Babu, S. Moorthy

doi:10.1016/j.solener.2014.01.044

Cited by 12 publications

(8 citation statements)

References 35 publications

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“…Among the various approaches in this regard, dye sensitization and nonmetal doping were investigated. 30,31 However, either photo-bleaching of the dye or the reduced electron-hole separation in the presence of nonmetal species limits the effectiveness of the TiO 2 materials. Modification of TiO 2 with metal (such as Pt, Pd, and Cu) particles was reported with good improvement of photocatalytic efficiency as the metal serves as electron traps to inhibit charge recombination possibly.…”

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confidence: 99%

Double-shelled plasmonic Ag-TiO2 hollow spheres toward visible light-active photocatalytic conversion of CO2 into solar fuel

et al. 2015

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Double-shelled hollow hybrid spheres consisting of plasmonic Ag and TiO2 nanoparticles were successfully synthesized through a simple reaction process. The analysis reveals that Ag nanoparticles were dispersed uniformly in the TiO2 nanoparticle shell. The plasmonic Ag-TiO2 hollow sphere proves to greatly enhance the photocatalytic activity toward reduction of CO2 into renewable hydrocarbon fuel (CH4) in the presence of water vapor under visible-light irradiation. The possible formation mechanism of the hollow sphere and related plasmon-enhanced photocatalytic performance were also briefly discussed.

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confidence: 99%

Double-shelled plasmonic Ag-TiO2 hollow spheres toward visible light-active photocatalytic conversion of CO2 into solar fuel

et al. 2015

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“…First, CdSe nanoparticles (NPs) were prepared and then it was deposited on the surface of TiO2 nanotubes by immerging TiO2 substrate in the solution containing CdSe NPs. CdSe-TiO2 interface had the activation in the range from 200 nm to 600 nm wavelength, which is an important light range for solar cell operation [42]. Ag also shows the same effect in visible light region, demonstrating highly-increased performances in solar cells [33].…”

Section: Research Trends Of Doping Methods Recentlymentioning

confidence: 96%

“…Nobel metals such as Ag and Au are frequently doped into TiO2 in order to increase the sensitivity of gas/bio sensing [32,33] and the others such as Si, CdS, Zr, Cr, Ni, Ru, W, etc. are classified as the catalysts for electrochemical or photoelectrochemical activator [25,[34][35][36][37][38][39][40][41][42][43][44][45][46].…”

Section: Conventional Doping Methods and Applicationmentioning

confidence: 99%

Research Trends in Doping Methods on TiO<sub>2</sub> Nanotube Arrays Prepared by Electrochemical Anodization

Yoo¹,

Choi²

2015

Applied Chemistry for Engineering

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Nanotubular TiO2 prepared by electrochemical anodization has been significantly used for various applications due to high aspect ratio structures showing a high chemical stability. Morphological properties of nanotubular titanium oxide are easily tailored by adjusting types and compositions of electrolyte, pH value, applied voltage, temperature and anodization time. Since their catalytic properties can be enhanced by doping foreign elements into TiO2, metal as well as non-metal elements are doped into TiO2 nanotubes using different methods. For example, single anodization, thermal annealing, precipitation, and electrochemical deposition have been applied to simplify the doping process. In this review, anodization of Ti to produce TiO2 and doping methods will be discussed in detail.

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“…When ZnO layer sensitized by dye alone, chemical instability arises which strongly affecting the charge transport. Co-sensitization by QDs/dye hybrid on TiO 2 nanotubes was also attempted [4]. But still this approach has to be improved due to the hydrophilic nature of TiO 2 nanotubes.…”

Section: Co-sensitization By Hybrid (Dye/quantumdots) On Tio 2 Photoementioning

confidence: 99%

Role of co-sensitization in dye-sensitized and quantum dot-sensitized solar cells

et al. 2019

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Novel materials for third generation solar cells have emerged as one of the major scientific contribution in alternative energy approaches. In this scenario, semiconductor nanomaterials and organic dye molecules have greatly acknowledged for their vast contribution to the solar energy applications. Research on semiconductor nanomaterials for fabricating future generation solar cells is still fascinating due to their extraordinary structural and optical properties. Moreover, functionalization of organic dye molecules helps to harvest large amount of photons in order to apply them for high efficiency solar cell devices. Various attempts have been made to improve efficiency of quantum dot-sensitized solar cells and dye-sensitized solar cells using semiconductor inorganic nanomaterials and organic/organometallic dye molecules. Out of these, co-sensitization has been looking as most promising approach to improve the efficiency considerably. A record of over 14% of efficiency has been achieved in recent years through co-sensitization strategy. The energy transfer process during co-sensitization is also a very crucial and interesting. This review deals about materials, methods, various approaches and role of co-sensitization in enhancing the efficiency of dye-sensitized and quantum dot sensitized solar cells. The critical issues existing in the co-sensitization approach are also elaborately discussed.

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Effect of co-sensitization of CdSe nanoparticles with N3 dye on TiO2 nanotubes

Cited by 12 publications

References 35 publications

Double-shelled plasmonic Ag-TiO2 hollow spheres toward visible light-active photocatalytic conversion of CO2 into solar fuel

Double-shelled plasmonic Ag-TiO2 hollow spheres toward visible light-active photocatalytic conversion of CO2 into solar fuel

Research Trends in Doping Methods on TiO<sub>2</sub> Nanotube Arrays Prepared by Electrochemical Anodization

Role of co-sensitization in dye-sensitized and quantum dot-sensitized solar cells

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