Highly effective SnS composite counter electrode sandwiched bi-function CeO2:Er3+/Yb3+ assisted surface modified photoelectroded dye sensitized solar cell exceeds 9.5% efficiency

Ambapuram, Meenakshamma; Gurulakshmi, M.; Simhachalam, Narendra Babu; Sripada, Suresh; Susmitha, K.; Pedda, Venkata Subbaiah Yerva; Raghavender, M.

doi:10.1016/j.solener.2020.07.030

Cited by 18 publications

(2 citation statements)

References 33 publications

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“…These dyes have radiation absorption in the range of visible light, in the wavelength of 520 to 560 nm [14]. The absorption of anthocyanin on the surface of TiO 2 is only possible through the forces of Van der Waals, and it occurs through the bond between two atoms of anthocyanin oxygen with the Ti 4+ ion found on the surface of TiO 2 , with two bonds of unfilled positives [15]. The main electrochemical processes that occur in DSSCs are the separation and recombination of charges [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Solar Conversion Efficiency in Dye-sensitized Solar Cells Using Natural Dyes Extracted from Alpinia purpurata and Alstroemeria Flower Petals as Novel Photosensitizers

da Conceição,

da Cunha,

Leite

et al. 2023

Colorants

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Herein, we evaluate the conversion efficiency of dye-sensitized solar cells (DSSCs) photosensitized using two different natural dyes extracted from Alpinia purpurata and Alstroemeria flower petals. The appreciable absorption capacity of the extracts in the visible light region was examined through absorption spectroscopy. The functional groups of the corresponding pigments were identified through Fourier transform spectroscopy (FTIR) technique thus indicating the presence of cyanidin 3-glycosides and piperine in the flowers of Alstroemeria and Alpinia purpurata. The extracted dyes were immobilized on TiO2 on transparent conducting FTO glass, which were used as photoanode. The dye-coated TiO2 photoanode, pt photocathode and iodide/triiodide redox electrolyte assembled into a cell module was illuminated by a light source intensity 100 mW/cm2 to measure the photovoltaic conversion efficiency of DSSCs. The TiO2 anode and Pt counter electrode surface roughness and morphological studies were evaluated using atomic force microscope (AFM) and field emission scanning electron microscopy (FESEM), respectively. Through the photoelectric characterizations, it was promising to verify that the solar conversion efficiency was calculated with the photovoltaic cell sensitized by Alstroemeria and Alpinia purpurata. This was achieved with a yield (η) of 1.74% and 0.65%, with an open-circuit voltage (Voc) of 0.39 and 0.53 V, short-circuit current density (Jsc) of 2.04 and 0.49 mA/cm2, fill factor (FF) of 0.35 and 0.40, and Pmax of 0.280 and 0.100 mW/cm2, respectively. The results are promising and demonstrate the importance of the search for new natural dyes to be used in organic solar cells for the development of devices that generate electricity in a sustainable way.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Solar Conversion Efficiency in Dye-sensitized Solar Cells Using Natural Dyes Extracted from Alpinia purpurata and Alstroemeria Flower Petals as Novel Photosensitizers

da Conceição,

da Cunha,

Leite

et al. 2023

Colorants

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“…L. Zhao prepared a double-layered photoanode mixing an NaLuF 4 :Yb 3+ /Er 3+ upconverter with commercial P25 to obtain high efficiency of DSSCs [6]. It has been reported by R. Mitty that the utilization of a bi-function CeO 2 :Er 3+ /Yb 3+ -assisted photoanode of DSSCs achieved high PCE, exceeding 9.5% [7]. Therefore, it is necessary to explore the studies on the combination of upconversion (UC) technology with double-layered photoanodes for improving the efficiency of DSSCs.…”

Section: Introductionmentioning

confidence: 99%

Bi-Function TiO2:Yb3+/Tm3+/Mn2+-Assisted Double-Layered Photoanodes for Improving Efficiency of Dye-Sensitized Solar Cells

Chen

et al. 2022

Coatings

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A bi-function TiO2:Yb3+/Tm3+/Mn2+-assisted double-layered photoanode was designed to improve the efficiency of dye-sensitized solar cells (DSSCs). The scanning electron microscopy (SEM) results show that the introduction of Mn2+ ions leads to smaller-sized TiO2:Yb3+/Tm3+/Mn2+ nanospheres, which is changed from nanosheet-shaped TiO2 and TiO2:Yb3+/Tm3+. Based on Scherrer’s formula from the X-ray diffraction (XRD) peak (101), the crystallite sizes decrease due to the introduction of Mn2+ ions. By utilizing screen-printing techniques, DSSCs fabricated by bi-function TiO2:Yb3+/Tm3+/Mn2+-assisted double-layered photoanodes exhibit the short-circuit current density (Jsc) of 15.68 mA/cm2, open-circuit voltage (Voc) of 0.67 V, fill factor (FF) of 0.71 and the power conversion efficiency (PCE) of 7.41%. The PCE of our designed DSSC is higher than that of DSSCs with a TiO2/TiO2 photoanode (6.84%), which is attributed to the bi-function effects of TiO2:Yb3+/Tm3+/Mn2+ including the conversion of NIR into visible light and improved light scattering. An increased charge transfer resistance of the photoanode/electrolyte interface indicates the suppressed charge recombination of electrons with the electrolyte redox couple (I−/I3−) in DSSCs with a TiO2/TiO2:Yb3+/Tm3+/Mn2+ double-layered photoanode, which also contributes to the enhanced performance of DSSCs. The double-layered photoanode fabricated by bi-function TiO2:Yb3+/Tm3+/Mn2+ nanospheres will provide a promising avenue for moving DSSCs forward to meet practical applications.

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Voltage‐ and Power‐Conversion Performance of Bi‐functional ZrO₂ : Er³⁺/ Yb³⁺ Assisted and Co‐sensitized Dye Sensitized Solar Cells for Internet of Things Applications

Meenakshamma,

Mounika,

Gurulakshmi

et al. 2023

ChemPhysChem

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The giant power conversion efficiency is achieved by using bifunction ZrO2:Er3+ /Yb3+assisted co‐sensitised dye sensitized solar cells. The evolution of crystalline structure, its microstructure is examined through X‐ray diffraction, scanning electron microscopy studies. The bi‐functional behaviour of ZrO2:Er3+/Yb3+ as upconversion, light scattering is confirmed by emission and diffused reflectance studies. The bi‐function ZrO2:Er3+/Yb3+ (pH=3) assisted photoanode is co‐sensitized by use of N719 dye, squaraine SPSQ2 dye and is sandwiched with Platinum based counter electrode. The fabricated DSSC exhibited a giant power conversion efficiency of 12.35% with VOC of 0.71 V, JSC of 27.06 mA/cm2, FF of 0.63. The results, which motivated the development of a small DSSC module, gave 6.21% and is used to drive a tiny electronic motor in indoor and outdoor lighting conditions. Small‐area DSSCs connected in series have found that a VOC of 4.52 V is sufficient to power up Internet of Things (IoT) devices.

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Highly effective SnS composite counter electrode sandwiched bi-function CeO2:Er3+/Yb3+ assisted surface modified photoelectroded dye sensitized solar cell exceeds 9.5% efficiency

Cited by 18 publications

References 33 publications

Evaluation of Solar Conversion Efficiency in Dye-sensitized Solar Cells Using Natural Dyes Extracted from Alpinia purpurata and Alstroemeria Flower Petals as Novel Photosensitizers

Evaluation of Solar Conversion Efficiency in Dye-sensitized Solar Cells Using Natural Dyes Extracted from Alpinia purpurata and Alstroemeria Flower Petals as Novel Photosensitizers

Bi-Function TiO2:Yb3+/Tm3+/Mn2+-Assisted Double-Layered Photoanodes for Improving Efficiency of Dye-Sensitized Solar Cells

Voltage‐ and Power‐Conversion Performance of Bi‐functional ZrO₂ : Er³⁺/ Yb³⁺ Assisted and Co‐sensitized Dye Sensitized Solar Cells for Internet of Things Applications

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Highly effective SnS composite counter electrode sandwiched bi-function CeO2:Er3+/Yb3+ assisted surface modified photoelectroded dye sensitized solar cell exceeds 9.5% efficiency

Cited by 18 publications

References 33 publications

Evaluation of Solar Conversion Efficiency in Dye-sensitized Solar Cells Using Natural Dyes Extracted from Alpinia purpurata and Alstroemeria Flower Petals as Novel Photosensitizers

Evaluation of Solar Conversion Efficiency in Dye-sensitized Solar Cells Using Natural Dyes Extracted from Alpinia purpurata and Alstroemeria Flower Petals as Novel Photosensitizers

Bi-Function TiO2:Yb3+/Tm3+/Mn2+-Assisted Double-Layered Photoanodes for Improving Efficiency of Dye-Sensitized Solar Cells

Voltage‐ and Power‐Conversion Performance of Bi‐functional ZrO2 : Er3+/ Yb3+ Assisted and Co‐sensitized Dye Sensitized Solar Cells for Internet of Things Applications

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Voltage‐ and Power‐Conversion Performance of Bi‐functional ZrO₂ : Er³⁺/ Yb³⁺ Assisted and Co‐sensitized Dye Sensitized Solar Cells for Internet of Things Applications