Two halide sensitive acridinium ̄uorophores have been synthesised and immobilised in a hydrophilic copolymer. Thin ®lms of the copolymers swell in aqueous media allowing dye ̄uorescence to be dynamically quenched by the di€usion of halide ions. The new sensor ®lms have been characterised in terms of their sensitivity and selectivity towards halide and are compared to ®lms containing both bound ...

A new route for fabrication of photoactive materials in organic-inorganic hybrid solar cells is presented in this report. Photoactive materials by blending a semiconductive conjugated polymer with an organolead halide perovskite were fabricated for the first time. The composite active layer was then used to make planar heterojunction solar cells with the PCBM film as the electron-acceptor. Phot...

Tm3+/Yb3+-codoped heavy metal oxide-halide glasses have been synthesized by conventional melting and quenching method. Structural properties were obtained based on the Raman spectra, indicating that halide ion has an important influence on the phonon density and maximum phonon energy of host glasses. Intense blue and weak red emissions centered at 477 and 650 nm, corresponding to the transition...

A simple physical model and theory have been proposed to investigate the electrocompression behavior of electrodeposited halide (chloride, bromide, and iodide) monolayer at the Au(111) electrode surface. By establishing the statistical thermodynamic formulas, the effective pair interaction energy, 2D spreading pressure, 2D isothermal compressibility, and electrode potential-coverage (θ-E) curve...

Abstract This paper presents a comparative study of electron transport phenomena in n-type gallium nitride strongly doped, above the Mott transition, with silicon and germanium. The samples under were grown by molecular beam epitaxy, metal-organic vapor phase epitaxy halide epitaxy. temperature dependence resistivity Hall Effect was investigated at temperatures ranging from 10 K up to 650 K. me...

Among various all-inorganic halide perovskites exhibiting better stability than organic-inorganic halide perovskites, α-CsPbI3 with the most suitable band gap for tandem solar cell application faces an issue of phase instability under ambient conditions. We discovered that a small amount of two-dimensional (2D) EDAPbI4 perovskite containing the ethylenediamine (EDA) cation stabilizes the α-CsPb...

Major advances in microscopy have revolutionized our view of the cell, allowing us to see what was previously not visible, now with unprecedented resolution. This would not be possible without an impressive portfolio of bright, modular, and photostable fluorescent dyes. Among these are xanthene-based dyes which includes fluorescein, a versatile FDA-approved reagent first synthesized more than a...

The spectroscopic methods UV-Vis absorption, FT-IR and (13)C and (19)F NMR demonstrate that 1,2-diiodoperfluoroethane (DIPFE) and 1,6-diiodoperfluorohexane (DIPFH) display strong halogen bonding with halide anions. A 1 : 1 stoichiometry of DIPFE or DIPFH with halide anion is confirmed, and the bonding constants and molar extinction coefficients are obtained. With the same halide, DIPFH possesse...

•A strategy to suppress halide segregation and reduce nonradiative recombination loss •Certified 28.2% efficient perovskite/silicon tandem solar cells on a textured structure •Significant stability improvement upon carbazole treatment Stacking perovskite onto crystalline silicon bottom in monolithic configuration enables power-conversion efficiencies (PCEs) well above those of their single-junc...