Influence of Anti-reflecting Nature of MgF2 Embedded Electrospun TiO2 Nanofibers Based Photoanode to Improve the Photoconversion Efficiency of DSSC

Panneerselvam, Pratheep; Murugadoss, Vignesh; Elayappan, Vijayakumar; Lü, Na; Guo, Zhanhu; Angaiah, Subramania

doi:10.30919/esee8c153

Cited by 16 publications

(14 citation statements)

References 16 publications

(17 reference statements)

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“…Three DSSCs were fabricated for each system and their average photovoltaic values were taken. 29 Fig. 1(a) shows the TG/DTA result of the ZnO precursor of nanoparticles (solid line) obtained using 0.1:0.002-mole ratio of Zn (II)/PVP.…”

Section: Photovoltaic Performance Of Dsscmentioning

confidence: 99%

A Facile Polyvinylpyrrolidone Assisted Solvothermal Synthesis of Zinc Oxide Nanowires and Nanoparticles and Their Influence on the Photovoltaic Performance of Dye Sensitized Solar Cell

Angaiah¹,

Arunachalam²,

Murugadoss³

et al. 2019

ES Energy Environ.

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A facile polyvinylpyrrolidone (PVP) assisted solvothermal method was adopted to synthesis Zinc Oxide (ZnO) nanostructures. PVP was used as a capping agent as well as a nanoreactor to fabricate ZnO nanoparticles and ZnO nanowires by solvothermal reaction of zinc acetate in polyol medium. The influence of Zn (II)/PVP molar ratio on the size and morphology of ZnO was also investigated. The change in ZnO morphology from well-defined spherical nanoparticles to 1D-nanowire assembly upon varying Zn (II)/PVP molar ratio was observed by using SEM and TEM studies. 1D-ZnO nanowires based DSSC showed enhanced photovoltaic performance due to the absence of electron hopping that limited the electron transport in ZnO nanoparticles. The DSSC fabricated using ZnO nanowires as photoanode exhibited higher power conversion efficiency (PCE) of 1.81 % than that fabricated using ZnO nanoparticles (1.13 %) as photoanode.

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Section: Photovoltaic Performance Of Dsscmentioning

confidence: 99%

A Facile Polyvinylpyrrolidone Assisted Solvothermal Synthesis of Zinc Oxide Nanowires and Nanoparticles and Their Influence on the Photovoltaic Performance of Dye Sensitized Solar Cell

Angaiah¹,

Arunachalam²,

Murugadoss³

et al. 2019

ES Energy Environ.

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“…The electrospin method is based on the formation of nano‐sized fibers from the electrospin solution under the effect of electric field forces. Nanofibers produced by electrospin method contribute to the development of high performance products in air filter application, 43 electrically conductive materials, 44 electrocatalysts, 45 encapsulation, 46 energy applications, 47–49 and oil separation 50 applications due to their superior properties such as low density, high porosity, interconnected pore structure with high permeability, small fiber diameter and high surface area properties. Recently, for oil/water separation, electrospun flexible nanofibrous materials with superwetting properties have received enormous amounts of interest.…”

Section: Introductionmentioning

confidence: 99%

Time and volume‐ratio effect on reusable polybenzoxazole nanofiber oil sorption capacity investigated via machine learning

Oflaz

Özaytekin

et al. 2021

J of Applied Polymer Sci

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Diesel oil sorption capacities (DOSCs) of polybenzoxazole/polyvinylidene fluoride nanofiber mats with four different groups (‐O‐, ‐S‐S‐, phenylene and diphenylene) in the main chain structures were investigated. Different experimental duration and diesel‐oil/tap‐water volume ratio pairs were used for diesel oil sorption. No degradation was observed in the nanofiber mat structures after diesel oil sorption. The characterizations of polybenzoxazole (PBO) nanofibers with high diesel oil selectivity were performed by scanning electron microscopy, atomic force microscopy, Fourier transform infrared spectroscopy, x‐ray diffraction, thermal gravimetric analysis, differential scanning calorimetry, Brunauer–Emmett–Teller (BET), and contact angle measurement analysis. According to the result of characterizations, superoleophilic and superhydrophobic nanofiber mats show high water contact angle value in the range of 132–140∘ and show high separation efficiency. In this study, we integrated ensemble gradient boosting model (XGBoost) to predict the DOSC of sorbent nanofiber and obtain an optimal set of conditions to maximize the DOSC. The predicted PBO‐E sorbent at the 0.5 ratio of diesel‐oil/tap‐water measured at the end of the 3rd minute showed the most reliable and stable diesel oil sorption with at least 9.39 and at most 12.33 g/g sorbent with 95% of confidence.

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“…Among them, the traditional fossil energy cannot meet the energy consumption in accordance with renewable, sufficient, clean, efficient, and nontoxic one. New clean energy technologies such as fuel cells, supercapacitors, lithium‐ion batteries, water splitting, and solar energy cells have aroused extensive attention. Recently, solar energy has become a vital member of the renewable energy because of its nonpolluting and inexhaustible features.…”

Section: Introductionmentioning

confidence: 99%

Recent Challenges in Perovskite Solar Cells Toward Enhanced Stability, Less Toxicity, and Large‐Area Mass Production

Liu

et al. 2019

Adv Materials Inter

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inexhaustible features. It is well known that solar cells can absorb photons from sunlight, resulting in electron-hole pairs, which would be segmented by the built-in electric field at the interface of two different semiconductors. As a result, the electric current would be produced and the solar energy is converted to electric energy. Up to now, the development of solar cells can be roughly categorized into four types based on their basic forming materials. For the first type, solar cells are mostly made of single crystal silicon, polycrystalline silicon, and noncrystalline silicon. The configuration of these cells is normally based on the p-i-n junction, showing a superior photoelectrical conversion efficiency (PCE) up to about 25.6% (Panasonic, Japan). [33] However, the manufacturing cost is very high due to complicated crafting and high purity demand. Furthermore, the by-product of silicon is hazardous to the environment. Scientists thereby keep looking for alternatives that can offer even better efficiency and are environmentally friendly. The second type refers to the inorganic solar cells that are made of CdS, CdTe, GaAs, and CuIn(Ga)Se films. The highest PCE of such type of cells were reported to be 21.7% (ZSW, Germany). [33] Although this value is close to the performance of Si-based solar cells, the use of rare elements (Ga, Te, Se) and highly toxic Cd makes it to be hard for further developments. The third type of solar cells are the organic photovoltaic cells (OPCs), which are made of magnesium phthalocyanine (MgPc)-based materials, in which the electron-hole pairs are stimulated by the organic p-i-n junction, giving the PCE of about ≈10.6%. [34] In addition to this unsatisfactory PCE, OPCs were also reported to have a short lifetime due to their poor stability. The fourth type of solar cells is the dye-sensitized solar cells (DSSCs), which are typically consisted of organic dyes, TiO 2 electron absorber layer, and I − /I 3 − -based liquid electrolyte. The highest PCE of DSSCs only reach about 13%, [35] and the leakage of liquid electrolyte is still unsolved. By considering all the factors mentioned above, currently, the Si-based solar cells still dominate the market over the other three types.Recently, the emerging organic-inorganic metal halide perovskite (CH 3 NH 3 PbI 3 ) solar cells (PSCs) have challenged this monopoly status. Owing to the strong absorption coefficient, long charge diffusion length, fast charge migration rate, and small excitation binding energy (50 meV), the PCE of PSCs has been recently enhanced from 3.8% to 22.1%, [36] In recent years, organic-inorganic halide perovskites have emerged as prospective materials for high-efficiency, inexpensive, and environmentally friendly perovskite solar cells (PSCs). Despite their superiority in synthesizing route, the poor stability of PSCs with regard to humidity, heat, UV radiation, and oxygen limits their applications. Moreover, the toxicity of perovskite films and suitable ways to achieve large-area production need to be taken into accou...

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Influence of Anti-reflecting Nature of MgF2 Embedded Electrospun TiO2 Nanofibers Based Photoanode to Improve the Photoconversion Efficiency of DSSC

Cited by 16 publications

References 16 publications

A Facile Polyvinylpyrrolidone Assisted Solvothermal Synthesis of Zinc Oxide Nanowires and Nanoparticles and Their Influence on the Photovoltaic Performance of Dye Sensitized Solar Cell

A Facile Polyvinylpyrrolidone Assisted Solvothermal Synthesis of Zinc Oxide Nanowires and Nanoparticles and Their Influence on the Photovoltaic Performance of Dye Sensitized Solar Cell

Time and volume‐ratio effect on reusable polybenzoxazole nanofiber oil sorption capacity investigated via machine learning

Recent Challenges in Perovskite Solar Cells Toward Enhanced Stability, Less Toxicity, and Large‐Area Mass Production

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