Ag nanoparticle-decorated 3D flower-like TiO2 hierarchical microstructures composed of ultrathin nanosheets and enhanced photoelectrical conversion properties in dye-sensitized solar cells

Zhao, Li; Zhong, Cheng; Wang, Yalan; Wang, Shimin; Dong, Binghai; Wan, Li

doi:10.1016/j.jpowsour.2015.05.017

Cited by 60 publications

(28 citation statements)

References 43 publications

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“…TiO 2 has been used as the primary photoelectrode for DSSCs, owing to its low cost and high flexibility, energy conversion efficiency, and physical stability. Therefore, to increase the energy conversion efficiency of DSSCs, some presumable methods have been reported for improving the properties of TiO 2 , such as chemically modified surface, combination with different semiconductors (ZnO, ZrO 2 , Nb 2 O 5 , In 2 O 3 , La 2 O 3 ) [2e4], metal doping (Ag, W, Zn, Cd, Ta, Zr) [2,3,13,14], and nitrogen doping [2,5,15,16].…”

Section: Introductionmentioning

confidence: 99%

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Copper and nitrogen doping on TiO2 photoelectrodes and their functions in dye-sensitized solar cells

Park

Kim

Okuyama

et al. 2016

Journal of Power Sources

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Section: Introductionmentioning

confidence: 99%

“…Generally, semiconductors doped with metals alter the photocurrent and deduce the amount of electron recombination in DSSCs [2,13,17]. Nitrogen extends response ranges of semiconductors into the visible irradiation range and conglomerates elements, playing an important role in increasing specific surface area.…”

Section: Introductionmentioning

confidence: 99%

Copper and nitrogen doping on TiO2 photoelectrodes and their functions in dye-sensitized solar cells

Park

Kim

Okuyama

et al. 2016

Journal of Power Sources

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“…Chander et al 25 showed an increment of 19.12% in the PCE of TiO 2 -based DSSCs loaded with 0.24 wt% Au nps (36 nm size). Zhao et al 26 demonstrated that the incorporation of 0.8 wt% Ag into the 3D hierarchical microstructure of TiO 2 led to a 30.7% enhancement in the PCE of plasmonic DSSCs due to their increased light scattering ability. The incorporation of Ag nanowires into TiO 2 has been found to enhance the light absorption and electron charge transport of DSSCs, resulting in a 25.3% enhancement of their PCE.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of plasmonic dye-sensitized solar cells using ion-implanted photoanodes

et al. 2019

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“…These 1-D nanostructures reduce the number of dead ends for electron transport [28]. 1-D nanostructures, however have some drawbacks including reduced dye loading [29], [30]. Thus, fully three dimensional (3-D) structures with different granules have been reported in an attempt to overcome these limitations in one dimensional and zero dimensional structures of TiO2 based DSSC [31].…”

Section: Introductionmentioning

confidence: 99%

Dual morphology titanium dioxide for dye sensitized solar cells

Selvapriya

Mayandi

Ragavendran

et al. 2019

Ceramics International

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Anatase TiO2 displaying dual morphologies were synthesized with a simple chemical route via a single step. A strong correlation between the dye sensitized solar cell (DSSC) device performance and the obtained dual morphologies are highlighted using relevant evidences from UV-vis and diffuse reflectance spectroscopy (DRS), Raman analysis, field emission scanning electron microscope, high resolution transmission electron microscope, current-voltage characteristics and impedance analysis. Structural investigation revealed that the interested medium in this work employed for the synthesis of TiO2 produced different types of dual morphologies such as nanospheres with nanoparticles (NSNP), microsphere decorated with nanoparticles (μSNP) and nanoparticles with stone like features (NPS). UVvis and DRS results indicated the ability of the materials to assist with diffused reflectance and optical absorption of the screen printed photoanodes. In addition, an investigation of Raman vibrational characteristics was carried out in detail using synchronous and asynchronous 2D correlation analysis. The high intense Eg anatase mode of Raman spectrum was simulated using a phonon confinement model and its normalised spectra are compared with an experimental data. The resultant performances in the DSSCs were not indicative by the material properties; so, the charge transfer resistance (Rct) and recombination properties of the photoanode were investigated. These results showed that the Nyquist plot of NSNP possesses the smallest diameter, which reveals that the device based on NSNP offers the lowest Rct value that accounts for the higher conversion efficiencies when compared with the DSSC device based on photoanodes μSNP and NSP. It can be concluded that the improved power conversion efficiency shown by photoanode fabricated using NSNP has the dual role of optimum surface area for dye loading and light scattering centres. These properties, when optimized along with the offered pathway for electrolyte diffusion to the dye degeneration with less Rct, could lead to better photoelectric conversion efficiency.

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Ag nanoparticle-decorated 3D flower-like TiO2 hierarchical microstructures composed of ultrathin nanosheets and enhanced photoelectrical conversion properties in dye-sensitized solar cells

Cited by 60 publications

References 43 publications

Copper and nitrogen doping on TiO2 photoelectrodes and their functions in dye-sensitized solar cells

Copper and nitrogen doping on TiO2 photoelectrodes and their functions in dye-sensitized solar cells

Fabrication of plasmonic dye-sensitized solar cells using ion-implanted photoanodes

Dual morphology titanium dioxide for dye sensitized solar cells

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