Performance and stability of low-cost dye-sensitized solar cell based crude and pre-concentrated anthocyanins: Combined experimental and DFT/TDDFT study

Chaiamornnugool, Phrompak; Tontapha, Sarawut; Phatchana, Ratchanee; Ratchapolthavisin, Nattawat; Kanokmedhakul, Somdej; Sang‒aroon, Wichien; Amornkitbamrung, Vittaya

doi:10.1016/j.molstruc.2016.07.086

Cited by 29 publications

(17 citation statements)

References 50 publications

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“…These pigments have naturally evolved over thousands of years to efficiently harness solar energy. Natural pigments such as betalains [14][15][16][17], chlorophylls [18,19], anthocyanins [20,21] and carotene [22] have been investigated as photo-sensitizers for solar cell applications. However, the main drawbacks of this type of solar cells are their low efficiencies and short lifespan.…”

Section: Introductionmentioning

confidence: 99%

Co-sensitization aided efficiency enhancement in betanin–chlorophyll solar cell

Pesala

2018

Mater Renew Sustain Energy

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Dye-sensitized solar cells (DSSCs) are a promising third-generation photovoltaic cell technology whose advantages are low-cost fabrication, reduced energy payback time, better performance under diffuse light conditions and flexibility. Typically DSSCs employ toxic dyes such as metal-based porphyrins requiring complex synthesis. In contrast, natural pigments are environmentally and economically superior to synthetic dyes. However, narrow absorption spectra of natural pigments result in low efficiencies of the solar cells. Hence, co-sensitizing pigments with complementary absorption spectra, which increases the absorption band, is an attractive pathway to enhance the efficiency. In this paper, we report the performance of betanin-chlorophyll co-sensitized solar cell using betanin (λ max = 535 nm) and chlorophyll-a (λ max = 435 nm, 668 nm), natural pigments having complementary absorption spectra. Density functional theory simulations were performed to verify that the lowest unoccupied molecular orbital and the highest occupied molecular orbital levels of the dye molecules, are aligned appropriately with that of TiO 2 and the redox electrolyte, respectively, which is necessary for optimal device performance. Electrochemical impedance spectroscopic studies were performed to determine parameters corresponding to the charge transfer processes in the dye solar cells. Individual and co-sensitized solar cells were fabricated and the co-sensitized solar cell demonstrated a higher efficiency of 0.601% compared to efficiencies of 0.562% and 0.047% shown by betanin and chlorophyll solar cells, respectively.

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Section: Introductionmentioning

confidence: 99%

Co-sensitization aided efficiency enhancement in betanin–chlorophyll solar cell

Pesala

2018

Mater Renew Sustain Energy

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“…The organic layer was separated using a funnel, dried over MgSO 4 and evaporated under pressure to form a yellow solid, which was puried via silica gel chromatography (CHCl 3 : Hex.) (2). 4-(Bis(4-bromophenyl)amino)benzaldehyde (0.431 g, 1 mmol) and (3,5-dimethoxyphenyl)boronic acid (0.4 g, 2.2 mmol) were dissolved in 40 ml of THF and two drops of aliquat-336 solution were added.…”

Section: Synthesis and Structural Characterizationmentioning

confidence: 99%

“…It is observed that IA-7 attained the lowest GSOP level value as a result of the existence of the bulky donor incorporating methoxy groups in the molecule, which lowered the GSOP level of the dye, taking it away from the CB of TiO 2 , and pushed the GSOP level far from the electrolyte potential. To study more precisely the probability of dye injection and regeneration processes, the excited state oxidation potentials (ESOPs) were computed from the optical bandgap (E 0-0 ) and GSOP values by using eqn (2).…”

Section: Gsop ¼ à[E Oxdmentioning

confidence: 99%

“…1 DSSCs have attracted all-inclusive academic and business interest because of their extraordinary performance under diffuse light conditions and low illumination levels, and their independence of the incident light angle. [2][3][4][5][6][7][8][9][10] DSSCs have numerous advantages compared to silicon-based solar cells, including transparency, low cost, and high-power conversion efficiencies under low light levels and articial light sources. 11 Moreover, the working standards of DSSCs include the ingestion of a photon by the sensitizer, and the change to an energized state, which injects an electron into the semiconductor conduction band.…”

Section: Introductionmentioning

confidence: 99%

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The molecular engineering, synthesis and photovoltaic studies of a novel highly efficient Ru(ii) complex incorporating a bulky TPA ancillary ligand for DSSCs: donorversusπ-spacer effects

Abdellah

El‐Shafei

2020

RSC Adv.

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“…These unique characteristics make DSSC favored in indoor applications such as sunroof and windows because it is effectively utilizing diffused light. To date, the most efficient DSSC consists of polypyridyl ruthenium sensitizers-based solar cells, which have obtained up to 11% conversion efficiency [9].…”

Section: Introductionmentioning

confidence: 99%

Study on Optical Properties of Graphene-Tio2 Nanocomposite as Photoanodes Layer in Dye Sensitized Solar Cell (Dssc)

Zulkapli¹,

Rashid²,

Sokri³

et al. 2018

Environ. ecosyst. sci.

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Dye Sensitized Solar Cell (DSSC) using titanium dioxide (TiO2) has begun to play a significant role in future solar energy since it is known as cost effective and highly efficient. DSSC is the third generation of photovoltaic cells that have been widely investigated as a promising replacement of current commercial solar cell. However, the highest efficiency of DSSC still has not achieved the minimum requirement so that it can be commercialize. Much research has been done to improve DSSC performance by focusing on photoanodes layer. In this study, graphene was employed into TiO2photoanode to increase the efficiency and to enhance the performance of dye sensitized solar cell. Four different samples of nanocomposites paste were prepared by varying the graphene composition of 0.00, 0.30, 0.50 and 0.70 wt%. The prepared samples were coated on Fluorine-Doped Tin Oxide (FTO) conductive glass substrates by a doctor blade method and annealed at 450 o C for 30 minutes. The morphology and structure of the graphene-TiO2 nanocomposites layer were characterized by using Field Emission Scanning Electron Microscope (FESEM). The optical properties were studied by using UV-visible spectroscopy. Based on the result show that addition of graphene into TiO2 have provide larger surface area compared to pure TiO2. The optical properties of Graphene-TiO2 nanocomposites also improved as the fundamental of absorption edge has shifted toward longer wavelength and reduce the optical band gap.

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Performance and stability of low-cost dye-sensitized solar cell based crude and pre-concentrated anthocyanins: Combined experimental and DFT/TDDFT study

Cited by 29 publications

References 50 publications

Co-sensitization aided efficiency enhancement in betanin–chlorophyll solar cell

Co-sensitization aided efficiency enhancement in betanin–chlorophyll solar cell

The molecular engineering, synthesis and photovoltaic studies of a novel highly efficient Ru(ii) complex incorporating a bulky TPA ancillary ligand for DSSCs: donorversusπ-spacer effects

Study on Optical Properties of Graphene-Tio2 Nanocomposite as Photoanodes Layer in Dye Sensitized Solar Cell (Dssc)

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