Hybrid nanomaterials offer promising properties to serve as an electrode for hybrid supercapacitors. Herein, dye (rhodamine B, RhB) encapsulated zeolitic imidazolate frameworks (RhB@ZIF-8) was synthesized at room temperature via triethylamine (TEA)-assisted method. The material was used as a precursor for synthesizing zinc oxide embedded nitrogen-doped carbon (ZnO@N-doped C) via the carbonization at different temperatures (400 C, 600 C, and 800 C). The materials were characterized using X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential thermal analysis (DTA), highresolution transmission electron microscope (HR-TEM), energy-dispersive X-ray mapping (EDX), nitrogen adsorption-desorption isotherm, and X-ray photoelectron microscope (XPS).

Perovskite solar cells (PSCs) with efficiencies greater than 20% have been realized mostly with expensive spiro‐MeOTAD hole‐transporting material. PSCs are demonstrated that achieve stabilized efficiencies exceeding 20% with straightforward low‐cost molecularly engineered copolymer poly(1‐(4‐hexylphenyl)‐2,5‐di(thiophen‐2‐yl)‐1H‐pyrrole) (PHPT‐py) based on Rutin–silver nanoparticles (AgNPs) as the hole extraction layer. The Rutin–AgNPs additive enables the creation of compact, highly conformal PHPT‐py layers that facilitate rapid carrier extraction and collection. The spiro‐MeOTAD‐based PSCs show comparable efficiency, although their operational stability is poor. This instability originated from potential‐induced degradation of the spiro‐MeOTAD/Au contact. The addition of conductive Rutin–AgNPs into PHPT‐py layer allows PSCs to retain >97% of their initial efficiency up to 60 d without encapsulation under relative humidity. The PHPT‐py/ Rutin–AgNPs‐based devices surpass the stability of spiro‐MeOTAD‐based PSCs and potentially reduce the fabrication cost of PSCs.

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We report the synthesis and characterization of a high molar extinction coefficient ruthenium complex sensitizer (Ru (6,6'-(COOEt)(2)-2,2'-bpy)(2)(Cl)(2)). In conjugation with TiO(2) nanotube arrays as a photoactive material and iodine/iodate redox electrolyte, we fabricated efficient dye-sensitized solar cell device showing a conversion efficiency of 3.94% measured under the air mass 1.5 global (AM1.5G) sunlight. The solar cell device showed a reasonably high open circuit voltage (0.74 V) as well as a fill factor of 0.63.

Polymer nanocomposites of poly (vinyl alcohol) (PVA), poly (vinyl pyrrolidone) (PVP) filled with various concentration of nanocomposite (Zn 0.97 Al 0.03 O: 1 wt% GO) x ;x = 1, 3, 5, and 7 wt% were prepared by solution mixing and then cast into films.X-ray combined with energy dispersive spectroscopy (EDS) data elucidated the successful preparation of pure PVA/PVP and filled films. The identifiable diffraction lines are ascribable to the presence of filler (Zn 0.97 Al 0.03 O: 1 wt% GO) that further established by the data of EDS as well as selected area electron diffraction pattern (SAED) achieved by high-resolution transmission electron microscopy (HRTEM) measurement. The optical band gap (E g ) of composite shows a significant decrement from 5.2 to 4.7 eV as the nanocomposite fillers were varied from 0 to 7 wt%. In addition, the refractive index (n), optical dielectric loss (ε 2 ), and optical conductivity (σ opt ) were investigated. The PVA/PVP filled with merely 1 wt% of the particle has an extremely high dielectric permittivity and conductivity.