Functional molecules possessing photoluminescence (PL) and liquid-crystalline (LC) behaviors, known as photoluminescent liquid crystals, along with a small molecular structure, have attracted significant attention. Fluorinated tolane skeletons are π-conjugated structures, which promising candidates for such functional molecules. These structures were revealed to exhibit strong PL in solid state...

caco3 nanoparticles have been synthesized via heat-treatment of a new precursor and solid state reaction. effect of calcinations temperature and quantity of surfactant on particle size has been investigated. the products were characterized by x-ray diffraction (xrd), scanning electron microscopy (sem), transmission electron microscopy (tem) and fourier transform infrared (ft–ir) spectroscopy.

indoor radon and thoron have been measured in the houses ofmoradabad district, uttar pradesh india, by means of solid state nuclear trackdetectors. radon, an invisible radioactive gas, occurs naturally in indooratmospheres and along with thoron is the most important contribution of humanexposure to natural sources. radon exists in soil gas building materials and indooratmosphere to name but a f...

Abstract Y 4 O 2 (CN ) 3 Cl and some isotypic rare earth ( RE carbodiimides = Sm, Gd, Tb) were prepared by solid-state metathesis reaction between , OCl Li CN . The crystal structure of was solved refined from single-crystal XRD data with the monocline space group C2/m Homologous compounds Tb assigned isotypically means powder diffraction. is characterized one-dimensional cluster chains which a...

Abstract New rare earth (RE) carbodiimides having the formula RE 8 O(CN 2 ) 10 Br were synthesized by solid-state metathesis reactions. Structure determinations and refinements, based on single-crystal X-ray diffraction data, are performed with space group P ͞3 c1 . Homologous compounds = La, Ce, Pr, Nd assigned isotypically. The refined crystal structure appears most unusual for carbodiimide co...

A pyrene photoluminescent layer is coated on the front side of a dye-sensitized solar cell to enhance the power conversion efficiency. The power conversion efficiency of the dye-sensitized solar cell coated with a pyrene photoluminescent layer improves from 9.12 ± 0.06% to 10.30 ± 0.11% (an improvement of 12.94%).

Optical pulses at THz and mid-infrared frequencies tuned to specific vibrational resonances modulate the lattice along chosen normal mode coordinates. In this way, solids can be switched between competing electronic phases and new states are created. Here, we use vibrational modulation to make electronic interactions (Hubbard-U) in Mott-insulator time dependent. Mid-infrared optical pulses exci...

This paper presents the study of photoluminescent properties molecular compositions consisting melanin and an electron-acceptor material – fullerene derivative, [6,6]-phenyl C61 butyric acid methyl ester (PCBM). These have not been studied well are promising for electronics natural materials, in particular, organic solar cells. The novelty this work relates to photoluminescence spectra obtained...