Perovskite solar cells (PSCs) have emerged as a promising technology for next-generation photovoltaic devices because of their ease fabrication and high power conversion efficiency (PCE). The main obstacle that limits the commercialization large-area PSCs is lack suitable solution-processable low-temperature methods perovskite material's chemical stability. With an increase in active area cell, defect states series resistance device increase, which undesirable. We demonstrated repeatable...

We report a detailed optical designing of perovskite solar cells (PvSCs) taking an example planar architecture cell having methylammonium lead iodide as active layer and incorporating transparent electrode (TE) consisting TiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> /Ag/TiO (TAT). In the proposed electrode, overcoat not only reduces inherent reflection silver but also acted electron transport layer. A comparative study between...

In this study, we examined the effects of iron doping on electronic and magnetic properties transition metal dichalcogenide (TMD) monolayers, specifically MoSe2 WSe2, utilizing density functional theory (DFT). Our results demonstrate that strategic significantly alters material properties. Structural analysis reveals doped systems largely retain original structure MSe2ML (Mo, W), despite exhibiting minor lattice distortions. Total energy calculations indicate these structures remain stable....

Iodine‐based hybrid planar perovskite solar cells’ (PSCs) overall performance is still very limited. In this work, a highly functionalized iodine‐based layer fabricated by incorporating trimethylolpropane ethoxylated triacrylate (TET) within the precursor, which can crosslink with grain boundaries to improve crystallinity as well size and passivate defect states of material. The MAPbI 3 ‐based thin films TET exhibited large sizes from 195.73 587.49 nm 8 mg mL −1 concentration. X‐ray...

Oxide–metal–oxide (OMO)‐based stacks are highly attractive by virtue of their favorable properties for being used as a top transparent electrode (TE) in semitransparent solar cells. Herein, getting the best trade‐off between performance and transparency is focused on optimizing OMO device layers with help optical simulation. NiO/Ag/SnO 2 integrated into having SnO , Spiro‐OMeTAD, MAPbI 3 electron transport layer, hole photoactive respectively, n–i–p geometry investigated. It shown that an...

A highly functional electron transport layer (ETL) is essential for fabricating stable and efficient perovskite solar cells (PvSCs). Among the various n-type materials, mesoporous titanium dioxide (m-TiO2) most widely used ETL in combination with a compact layer. Despite contributing to good efficiency devices, low mobility, high annealing temperature (>450 °C) form crystalline film anatase phase, use of m-TiO2 bottleneck technology. Aluminum-doped zinc oxide (AZO) potential replacement as...

Magnetite (Fe3O4) and hematite (α-Fe2O3) iron oxide nanoparticles were synthesized using the co-precipitation method via subsequent heat treatment ferrous chloride (FeCl2.4H2O) as a source of iron. The powder was annealed at high temperature in an air atmosphere to promote formation phase. Both phases characterized x-ray diffraction, thermogravimetric, differential scanning calorimetric analysis, Raman spectroscopy. as-synthesized confirmed by XRD studies. thermal behavior weight loss...

Organic-inorganic perovskites have proven to be outstanding solar cell light-absorbing materials due their spectacular properties such as high tolerance defects, bandgap tunability, carrier mobility, long diffusion length, and absorption coefficient. However, the associated stability issues in harsh conditions hinder commercial prospects. In addition instability of absorbing perovskite layer, usage organic transport layers its vulnerable interface with layer also contributes overall device....

Today we live in era where not only humans interact but machines too. Internet of Things has disrupted the communication with an enormous growth number connected devices worldwide. This resulted big challenges to meet spectrum requirement these such as seamless connectivity, scalability and accessibility. Cognitive Radio (CR) is designed since it uses holes licensed bands. Security issues put at risk sensing, a crucial part Network (CRN).A malicious user (MU) reduces accuracy particularly...

Abstract Pure and Ni-doped In2-xNixO3 (x = 0.0, 0.01, 0.05, 0.1) nanocrystalline powders were synthesized using sol-gel process. The XRD patterns revealed the formation of particles with cubic bixbyte crystal structure. average size was calculated from Debye-Scherer's Equation for (222) peak it found to be 8 nm. This observation agrees well particle estimated transmission electron microscope (TEM). observed Raman peaks in doped materials negligibly shifted towards lower frequency. clearly...

Diamond has many potential electronic applications, but the diamond seeding methods are generally harsh on substrates rendering them unsuitable for integration in electronics. We report a non-abrasive, scalable and economic process of film using kitchen-wrap polyethylene employing hot filament chemical vapour reaction H 2 S/CH 4 /H gas mixtures Cu substrates. The fabricated films were characterized with scanning electron microscopy, transmission microscopy Raman spectroscopy, which confirm...

Organic–inorganic lead halide perovskite is promising photovoltaic energy harvesting material to fabricate high-efficiency solar cells. To enhance the power conversion efficiency (PCE) and stability of fabricated device, a high-quality, pinhole-free, larger grain size film essential. Anti-solvent-assisted crystallization popular technique deposit thin film. With help this technique, layer can be deposited with smooth surface morphology, low defect density, excellent carrier transport....

Energy conversion efficiency was studied in liquid phase photogalvanic cell consisting acridine orange as photosensitiser, NaLS surfactant and DTPA reductant. Values of photopotential photocurrent generated by this system were 746.0 mV 205.0 µA respectively. The observed power photon energy 0.83% fill factor determined 0.56. This showing the storage capacity dark for 95 min. against charging time 210 effects different parameters (pH, concentration, light intensity, i-V characteristics) on...

Abstract The performance of dye-sensitized photogalvanic cells for the direct conversion solar energy to electrical was studied with use a new dye methyl green. effect has been in system containing green as photosensitizer (dye) and DTPA reducing agent presence sodium lauryl sulphate. various parameters on output cell, such dye, reductant surfactant concentration, light intensity, temperature, diffusion length, electrode area, were observed. performances (experimental efficiency, fill...

The conversion of solar energy on the basis photogalvanic effect in liquid phase cell is studied experimentally. has been system containing Rhodamine B as a photosensitizer and DTPA reducing agent presence sodium lauryl sulphate. photopotential photocurrent generated by this were 843.0 mV 185.0 μA, respectively. experimental efficiency, fill factor, storage capacity have also determined. different parameters electrical output like dye, reductant surfactant concentration, pH, light intensity,...