Dye sensitized solar cells go beyond using perovskite and spinel inorganic materials: A review

Alizadeh, Amin; Roudgar‐Amoli, Mostafa; Bonyad-Shekalgourabi, Seyed-Milad; Shariatinia‬, Zahra; Mahmoudi, Melika; Saadat, Fatemeh

doi:10.1016/j.rser.2021.112047

Cited by 76 publications

(24 citation statements)

References 209 publications

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“…The surface morphology and crosssection were observed using the field emission scanning electron microscopy (FE-SEM) technique (Carl Zeiss, Merlin Compact). The shape and size of TiO 2 nanoparticles were studied using transmission electron microscopy (TEM) Tecnai G 2 20 Twin, FEI. The optical absorption spectra of sensitizers were recorded using a SHIMADZU UV 1650 spectrophotometer from 200 to 600 nm, and emission spectra were measured using a JASCO spectrofluorometer FP-8300 between 410 and 550 nm.…”

Section: Methodsmentioning

confidence: 99%

“…The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acsomega.2c05334. Optical properties of TiO 2 photoanodes, with the inset showing the plot of (αhν) 2…”

Section: * Sı Supporting Informationmentioning

confidence: 99%

“…Energy conversion is the process of capturing minute amounts of energy from energy sources, that is, the sun, and converting them into electricity for later use. An alternative for future large-scale energy production is photovoltaics. − Electricity generation from solar cells has emerged as one of the most promising and rapidly growing areas for power generation. There has always been a quest to find efficient and stable solar cell technology at a competitive cost. − Recently, a new kind of solar cell has emerged, which has shown great potential and promises to be more cost-effective and efficient than any other solar cell technology known thus far.…”

Section: Introductionmentioning

confidence: 99%

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Naphthoquinoneoxime-Sensitized Titanium Dioxide Photoanodes: Photoelectrochemical Properties

et al. 2022

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Naphthoquinoneoxime derivatives, viz., LwOx, 3-hydroxy-4-(hydroxyimino)naphthalen-1 (4H)-one; PthOx, 3-hydroxy-4-(hydroxyimino)-2-methylnaphthalen-1(4H)-one; and Cl_LwOx, 2-chloro-3-hydroxy-4-(hydroxyimino)naphthalen-1(4H)-one, are used in fabrication of dye-sensitized solar cells (DSSCs). The photophysical and electrochemical properties of the sensitizers were studied. The HOMO–LUMO energy gaps of the sensitizers (LwOx, PthOx, and Cl_LwOx) calculated by using the intersection of UV–visible and fluorescence spectra are 2.85, 2.71, and 2.87 eV, respectively. The energy band alignment energy level of the sensitizer, that is, the lowest unoccupied molecular orbital (LUMO) and highest occupied molecular orbital (HOMO), should match with the energy level of the TiO2 conduction band and the redox potential of iodine/triiodide electrolyte to allow smooth electron transfer. The electrochemical characterization of sensitizers was done to find the LUMO and HOMO level of the sensitizer. It shows that the LUMO level of (LwOx, PthOx, and Cl_LwOx) is above the conduction band position of TiO2. Electrochemical impedance spectroscopy was used to study the charge transport resistance and electron lifetime of DSSCs. The charge transport resistance at the TiO2 |electrolyte|counter electrode interface was reduced in the Cl_LwOx device; thus, the electron lifetime of Cl_LwOx was enhanced compared to LwOx and PthOx sensitizers. The fabricated device was characterized using photocurrent density–voltage (J–V) measurement. It is observed that there was an enhancement in the overall power conversion efficiency (η) of the DSSCs fabricated by using Cl_LwOx sensitizers as compared to LwOx and PthOx sensitizer-loaded photoanodes. Enhancement in power conversion efficiency, that is, photovoltage and photocurrent, is achieved due to the chlorine substituent. Thus, the chlorine substituent naphthoquinoneoxime pushes the electron density, enhancing the pushing nature and facilitating the lone pair present in the N–OH moiety to attach to TiO2 more strongly.

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Section: Methodsmentioning

confidence: 99%

Section: * Sı Supporting Informationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Naphthoquinoneoxime-Sensitized Titanium Dioxide Photoanodes: Photoelectrochemical Properties

et al. 2022

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“…As a result, it is unavoidable that fossil fuels to be replaced by ecologically beneficial and renewable fuels 6 , 7 . Regarding the huge amount of sunlight that reaches the planet, it is known as one of the most important renewable energy sources, prompting a worldwide effort to develop photovoltaic energy conversion technology 8 – 10 .…”

Section: Introductionmentioning

confidence: 99%

Molecular engineering of several butterfly-shaped hole transport materials containing dibenzo[b,d]thiophene core for perovskite photovoltaics

Shariatinia‬

Sarmalek

2022

Sci Rep

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Several butterfly-shaped materials composed of dibenzo[b,d]thiophene (DBT) and dibenzo-dithiophene (DBT5) cores were designed as hole transporting materials (HTMs) and their properties were studied by density functional theory (DFT) computations for usage in mesoscopic n-i-p perovskite solar cells (PSCs). To choose suitable HTMs, it was displayed that both of lowest unoccupied molecular orbital (LUMO) and highest occupied molecular orbital (HOMO) energies of molecules were located higher than those of CH3NH3PbI3 (MAPbI3) perovskite as they were able to transfer holes from the MAPbI3 toward Ag cathode. Negative solvation energy (ΔEsolvation) values for all HTMs (within the range of − 5.185 to − 18.140 kcal/mol) revealed their high solubility and stability within CH2Cl2 solvent. The DBT5-COMe demonstrated the lowest values of band gap (Eg = 3.544) and hardness (η = 1.772 eV) (the greatest chemical activity) and DBT5-CF3 displayed the biggest η = 1.953 eV (maximum stability) that were predominantly valuable for effective HTMs. All HTMs presented appropriately high LHEs from 0.8793 to 0.9406. In addition, the DBT5 and DBT5-SH depicted the lowest exciton binding energy (Eb) values of 0.881 and 0.880 eV which confirmed they could produce satisfactory results for the PSCs assembled using these materials. The DBT5-SH and DBT5-H had maximum hole mobility (μh) values of 6.031 × 10–2 and 1.140 × 10–2 which were greater than those measured for the reference DBT5 molecule (μh = 3.984 × 10–4 cm2/V/s) and about 10 and 100 times superior to the calculated and experimental μh values for well-known Spiro-OMeTAD. The DBT5-COOH illustrated the biggest open circuit voltage (VOC), fill factor (FF) and power conversion efficiency (PCE) values of 1.166 eV, 0.896 and 23.707%, respectively, establishing it could be as the best HTM candidate for high performance PSCs.

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“…A problem that still limits their efficiency is the low light-harvesting capability (LHC) [ 8 ]. Particularly, DSSCs emerged as technically and economically credible alternatives [ 1 , 2 , 3 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. Their working principle considers increasing the LHC by including a layer of molecular dyes to potentialize the exciton creation.…”

Section: Introductionmentioning

confidence: 99%

Organic Electronics from Nature: Computational Investigation of the Electronic and Optical Properties of the Isomers of Bixin and Norbixin Present in the Achiote Seeds

et al. 2022

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Organic compounds have been employed in developing new green energy solutions with good cost-efficiency compromise, such as photovoltaics. The light-harvesting process in these applications is a crucial feature that still needs improvements. Here, we studied natural dyes to propose an alternative for enhancing the light-harvesting capability of photovoltaics. We performed density functional theory calculations to investigate the electronic and optical properties of the four natural dyes found in achiote seeds (Bixa orellana L.). Different DFT functionals, and basis sets, were used to calculate the electronic and optical properties of the bixin, norbixin, and their trans-isomers (molecules present in Bixa orellana L.). We observed that the planarity of the molecules and their similar extension for the conjugation pathways provide substantially delocalized wavefunctions of the frontier orbitals and similar values for their energies. Our findings also revealed a strong absorption peak in the blue region and an absorption band over the visible spectrum. These results indicate that Bixa orellana L. molecules can be good candidates for improving light-harvesting in photovoltaics.

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Dye sensitized solar cells go beyond using perovskite and spinel inorganic materials: A review

Cited by 76 publications

References 209 publications

Naphthoquinoneoxime-Sensitized Titanium Dioxide Photoanodes: Photoelectrochemical Properties

Naphthoquinoneoxime-Sensitized Titanium Dioxide Photoanodes: Photoelectrochemical Properties

Molecular engineering of several butterfly-shaped hole transport materials containing dibenzo[b,d]thiophene core for perovskite photovoltaics

Organic Electronics from Nature: Computational Investigation of the Electronic and Optical Properties of the Isomers of Bixin and Norbixin Present in the Achiote Seeds

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