Enhancement of power conversion efficiency of dye sensitized solar cells by modifying mesoporous TiO2 photoanode with Al-doped TiO2 layer

Ran, Li; Zhao, Yin; Hou, Ruien; Ren, Xiangshi; Lou, Yanyan; Wang, Zhuyi; Li, Dongdong; Shi, Liyi

doi:10.1016/j.jphotochem.2016.01.002

Cited by 46 publications

(33 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By doing this, they could show an improvement short‐circuit current density to 83% and conversion efficiency increased from 5.8 to 7.1%. Likewise, various research groups have coated thin films of TiO 2 doped with either transition or rare‐earth ions with different concentration and showed an improvement in efficiency of solar cell doping Fe 2 O 3 to TiO 2 thin films and by coating Al‐doped TiO 2 layers on mesoporous TiO 2 films …”

Section: Introductionmentioning

confidence: 99%

Improved Light Efficiency in Si Solar Cells by Coating Mesoporous TiO₂ and Cu‐Modified Mesoporous TiO₂

Ravuvari

Yechuri²,

Chaitanya³

et al. 2018

Solar RRL

View full text Add to dashboard Cite

In the present work, an improvement in light‐conversion efficiency by coating spherical particles of mesoporous TiO2 (MT) and copper‐modified mesoporous TiO2 (CMT) on single‐crystalline Si solar PV cell is observed. The studies are carried out by spin coating with different concentrations of MT (0.25 to 1.5%) and CMT (0.25 to 1.0%) particles on bare cells independently and compared with a bare solar cell throughout the work. It is observed that in the case of MT coatings, the conversion efficiency increases initially and reaches a maximum of 9.77% at a coating concentration of 1.0%; thereafter, it decreases with an increase in coating concentration. This decrease in efficiency may be attributed to coagulation of MT particles, whereas in the case of CMT particles the conversion efficiency reached a maximum of 8.85% at 0.5% concentration and decreases thereafter. This study indicates that a higher efficiency can be achieved at lower concentrations of CMT coating compared to MT coatings on a bare solar cell. The increase in efficiency may be attributed to better surface passivation and/or trapping of electrons at the metal sites by Cu in CMT. Recombination lifetime measurements results corroborated that CMT particles show better surface passivation as a result of which there is an increase in efficiency. Diffused reflectance and short‐circuit current ratio versus wavelength studies on MT and CMT also revealed that CMT particles perform better than MT particles.

show abstract

Section: Introductionmentioning

confidence: 99%

Improved Light Efficiency in Si Solar Cells by Coating Mesoporous TiO₂ and Cu‐Modified Mesoporous TiO₂

Ravuvari

Yechuri²,

Chaitanya³

et al. 2018

Solar RRL

View full text Add to dashboard Cite

show abstract

“…These cells exhibit an improvement in two aspects enhancing the electron transport and suppressing the charge recombination process. The power conversion efficiency of Al-doped TiO 2 cell is superior than mesoporous TiO 2 coated cell [12]. Similarly, many authors have reported an improvement in solar cell efficiency by overcoating on solar cells with Co, Cd, Fe, Zn, Gd, Eu doped TiO 2 thin films with different doping concentrations [13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Photovoltaic Performance of Silicon Solar Cell by Using Copper Doped Tio2 Thin Film

Chaitanya¹,

Tjprc²

2018

IJMPERD

View full text Add to dashboard Cite

show abstract

“…achieved 9.67 % energy conversion efficiency by using nanoporous TiO 2 /La 2 O 3 hybrid photoanode. Metal doping and non‐metal doping are the other fascinating approach to achieve improved materials giving enhanced photocurrent and high efficiency DSSC.…”

Section: Introductionmentioning

confidence: 99%

N/Al‐Incorporated TiO₂Nanocompositesfor Improved Device Performance of aDye‐Sensitized Solar Cell

et al. 2017

View full text Add to dashboard Cite

We report application of aluminium co-doped with nitrogen titania nanocomposite (Al/N-TiO 2 ) prepared by hydrothermal method as photoanode for very efficient dye-sensitized solar cell (DSSC). The Al/N-TiO 2 nano-composites are characterized by spectral viz. UV-visible, XRD, FTIR, XPS techniques. TEM, SEM, EDX and BET are used to obtain their particle size, morphology and surface area. The DSSC with Al/N co-doped TiO 2 as photoanode and N719 sensitizer dye exhibited an overall light conversion efficiency of 6.24 %, which is much improved compared to that of un-modified TiO 2 (1.69 %) under 100 mW/ cm 2 light irradiation. The improved efficiency with Al/N codoped TiO 2 is attributed to greater dye loading, increased surface area, rapid interfacial charge transfer, slow charge recombination and strong red shift of light absorption in the visible region as compared with un-doped TiO 2 . The effect of the Al concentration on the current density is studied and optimum Al concentration with N-doped TiO 2 is observed to be 1.0 mole%. The work establishes that the as prepared Al/N codoped TiO 2 is impending photoanode material for low-cost and high-efficiency DSSC.

show abstract

Enhancement of power conversion efficiency of dye sensitized solar cells by modifying mesoporous TiO2 photoanode with Al-doped TiO2 layer

Cited by 46 publications

References 54 publications

Improved Light Efficiency in Si Solar Cells by Coating Mesoporous TiO₂ and Cu‐Modified Mesoporous TiO₂

Improved Light Efficiency in Si Solar Cells by Coating Mesoporous TiO₂ and Cu‐Modified Mesoporous TiO₂

Experimental Investigation of Photovoltaic Performance of Silicon Solar Cell by Using Copper Doped Tio2 Thin Film

N/Al‐Incorporated TiO₂Nanocompositesfor Improved Device Performance of aDye‐Sensitized Solar Cell

Contact Info

Product

Resources

About

Enhancement of power conversion efficiency of dye sensitized solar cells by modifying mesoporous TiO2 photoanode with Al-doped TiO2 layer

Cited by 46 publications

References 54 publications

Improved Light Efficiency in Si Solar Cells by Coating Mesoporous TiO2 and Cu‐Modified Mesoporous TiO2

Improved Light Efficiency in Si Solar Cells by Coating Mesoporous TiO2 and Cu‐Modified Mesoporous TiO2

Experimental Investigation of Photovoltaic Performance of Silicon Solar Cell by Using Copper Doped Tio2 Thin Film

N/Al‐Incorporated TiO2Nanocompositesfor Improved Device Performance of aDye‐Sensitized Solar Cell

Contact Info

Product

Resources

About

Improved Light Efficiency in Si Solar Cells by Coating Mesoporous TiO₂ and Cu‐Modified Mesoporous TiO₂

Improved Light Efficiency in Si Solar Cells by Coating Mesoporous TiO₂ and Cu‐Modified Mesoporous TiO₂

N/Al‐Incorporated TiO₂Nanocompositesfor Improved Device Performance of aDye‐Sensitized Solar Cell