Influence on the efficiency of dye-sensitized solar cell using Cd doped ZnO via solvothermal method

Esakki, E. Selva; Vivek, P.; Sundar, S. Meenakshi

doi:10.1016/j.inoche.2022.110213

Cited by 15 publications

(4 citation statements)

References 50 publications

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“…194 Cd-doped ZnO DSSCs were synthesised using the solvothermal method. 195 Layer-by-layer assembly can also be used to fabricate DSSCs. 196 In another route, DSSCs were manufactured using TiO 2 -coated multi-walled carbon nanotubes (CNTs) due to their chemical stability and excellent electrical conductivity characteristics.…”

Section: Dye Sensitized Solar Cells (Dsscs)mentioning

confidence: 99%

Fourth-generation solar cells: a review

Rehman,

Syed,

Khanam

et al. 2023

Energy Adv.

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Section: Dye Sensitized Solar Cells (Dsscs)mentioning

confidence: 99%

Fourth-generation solar cells: a review

Rehman,

Syed,

Khanam

et al. 2023

Energy Adv.

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“…24 Thus, ZnO is an adaptable nanomaterial with numerous uses in sunscreens, 25 cosmetics, 26 antibacterial coating, 27 chemical gas sensors, 28 biosensors, 29 thin-film transistors (TFTs), 30 photovoltaic devices, 31 supercapacitors, 32 photocatalysis, and electrocatalysis. 33,34 Several synthesis methods have been employed to produce zinc oxide (ZnO), including sol−gel, 35 hydrothermal, 36 solvothermal, 37 chemical precipitation, 38 chemical vapor transport, 39 spray pyrolysis, 40 and electrochemical method. 41 Despite several benefits, simple, scalable synthesis methods, and diverse applications of ZnO, it suffers from a few drawbacks that limit its effectiveness and practicality for overall water splitting due to the rapid charge carrier recombination and slow-moving kinetics.…”

Section: Introductionmentioning

confidence: 99%

“…Excitons are bound states of an electron and a hole that forms when an electron is excited into the conduction band from its valence band . Thus, ZnO is an adaptable nanomaterial with numerous uses in sunscreens, cosmetics, antibacterial coating, chemical gas sensors, biosensors, thin-film transistors (TFTs), photovoltaic devices, supercapacitors, photocatalysis, and electrocatalysis. , Several synthesis methods have been employed to produce zinc oxide (ZnO), including sol–gel, hydrothermal, solvothermal, chemical precipitation, chemical vapor transport, spray pyrolysis, and electrochemical method …”

Section: Introductionmentioning

confidence: 99%

Band Energy Modulation in an Fe–Mn–ZnO Nanowire–Nanosheet Catalyst for Efficient Overall Water Splitting

Mishra,

Choi,

Ryu

et al. 2024

Energy Fuels

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Here, we studied a simple, scalable, and in situ hydrothermal method to prepare an Fe−Mn-doped ZnO nanowire−nanosheet on a three-dimensional (3D) Ni-foam substrate for electrocatalytic overall water splitting. Attractively, the doping of Fe and Mn in ZnO plays a significant role in mobilizing the electron from Fe and Mn toward ZnO in the Fe−Mn-doped ZnO nanowire−nanosheet due to different vacuum levels of Fe, Mn, and ZnO, facilitating the development of more active sites on the surface of the catalyst, which plays a crucial role in improving the catalytic performances during overall water splitting. Consequently, the Fe−Mn-doped ZnO nanowire−nanosheet shows a lowermost overpotential of 230 mV and a lowermost Tafel slope of 115.2 mV dec −1 during the hydrogen evolution reaction (HER) and 248 mV overpotential and a short Tafel slope of 109.1 mV dec −1 during the oxygen evolution reaction (OER) in a 1.0 M KOH electrolyte. Besides, the Fe−Mn-doped ZnO nanowire−nanosheet depicts low charge transfer and series resistances of 3.7 and 0.41 Ω during the HER and 0.36 and 1.66 Ω during the OER, respectively. Also, it elucidates outstanding durability at −10 mA cm −2 for 12 h (HER) and 10 mA cm −2 for 12 h (OER) using chronopotentiometry and 1000 cycles. In addition, the Fe−Mn−ZnO||Fe− Mn−ZnO nanowire−nanosheet cell shows a lower potential of 1.74 V and outstanding stability over 24 h to deliver 10 mA cm −2 in electrocatalytic overall water splitting. Besides, the staircase stability of the Fe−Mn−ZnO||Fe−Mn−ZnO nanowire−nanosheet cell also suggests outstanding stability over 8.2 h at different current densities. Captivatingly, the concept of energy band modulation in the bimetallic doped Fe−Mn−ZnO nanowire−nanosheet catalyst is envisaged to explore insights into the mechanisms of the evolution of hydrogen and oxygen.

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“…Moreover, several doped ZnO nanostructures are reported in the literature as photoanodes for DSSCs with improved photovoltaic efficiencies. For example, Cd-doped ZnO nanostructures show a power conversion efficiency of 0.5%, Cu-doped ZnO nanostructures show a power conversion efficiency of 2.03%, and Pd-doped ZnO nanostructures show a power conversion efficiency of 11.92% (Esgin et al, 2022;Esakki et al, 2023;Mujahid and Al-Hartomy, 2023). However, the study of the second group of highly conductive metals and their doping with ZnO has not been reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

Simulation, synthesis, and analysis of strontium-doped ZnO nanostructures for optoelectronics and energy-harvesting devices

Anjum,

Ashraf,

Tayyaba

et al. 2023

Front. Mater.

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The demand for clean and sustainable alternative energy resources is linearly increasing day by day due to the prevailing electricity crisis. Small-scale energy harvesting is considered a sustainable way to generate clean energy. Advanced energy solar cells, mainly dye-sensitized solar cells use solar energy and convert it into electrical energy. Similarly, MEMS-based piezoelectric materials are used to convert mechanical energy into electrical energy. For these applications, zinc oxide is considered one of the most suitable materials with high conductive, tunable band gap, and piezoelectric properties. However, altering these properties can be carried out by the addition of metal and other materials. Various research work has been carried out to study the addition of conductive metal as a dopant to alter the properties of zinc oxide. In this study, Strontium has been doped in ZnO to form a nanostructure for application in DSSC and microelectromechanical systems (MEMS) energy harvesters. Analysis has been conducted using the simulation and fabrication method. The results show that the doping and the pore size of the substrate (Anodic Aluminum oxide membrane) largely affect the output voltage and current. The difference between the simulated and experimental results was less than 1%, which shows the accuracy of the simulation. Tuning of the band gap can be observed by the addition of Sr in the ZnO nanostructure. For microelectromechanical systems energy harvesters, Sr-doped ZnO nanostructures deposited on anodic aluminum oxide show 7.10 mV of voltage and 1.11 uA of current output. The addition of Sr doping in ZnO shows the improvement in the generated current and voltage for the energy harvester and the improvement in overall power conversion efficiency for dye-sensitized solar cells. MEMS-based energy harvesting devices and low-cost advanced solar cells are promising to improve the efficiency of energy generation at a small scale.

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Influence on the efficiency of dye-sensitized solar cell using Cd doped ZnO via solvothermal method

Cited by 15 publications

References 50 publications

Fourth-generation solar cells: a review

Fourth-generation solar cells: a review

Band Energy Modulation in an Fe–Mn–ZnO Nanowire–Nanosheet Catalyst for Efficient Overall Water Splitting

Simulation, synthesis, and analysis of strontium-doped ZnO nanostructures for optoelectronics and energy-harvesting devices

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