This study aims at firstly introducing a theoretical background of photonic quantum ring naturally formed by photonic quantum corral effect in the 3D Rayleigh–Fabry–Perot micro-cavity. This unique phenomenon is visualized as polar angle-dependent multi-chromatic emission spectra corresponding to an each lightwave with different optical paths. Also, we fabricated an H-D structure for a single PQ...

Photoinduced intramolecular charge separation (CS) in a polar polymer glass, cyanoethylated pullulan (CN-PUL), was studied below the glass transition temperature (Tg=395 K). A series of three carbazole (Cz: donor)-cyclohexane (S: spacer)-acceptor (A: acceptor) molecules (Cz-S-A) was used as intramolecular donor-acceptor dyads. The photoinduced CS rate was evaluated by the fluorescence decay mea...

Passive daytime radiative cooling has recently become an attractive approach to address the global energy demand associated with modern refrigeration technologies. One technique increase performance is engineer surface of a polar dielectric material enhance its emittance at wavelengths in atmospheric infrared transparency window (8–13 µm) by outcoupling surface-phonon polaritons (SPhPs) into fr...

sponges are the simplest multicellular animals that lack defense mechanisms and rely on chemical defense  that have been used by mankind to develop antimicrobial drugs against diseases.  the present study was designed to demonstrate the antibacterial and antifungal activities of marine sponge dysidea pallescens semipolar and nonpolar extracts. in this study, d. pallescens were collected from he...

beside ziegler-natta and phillips catalysts the development of methylaluminoxane (mao) as cocatalyst incombination with metallocenes or other transition metal complexes for the polymerization of olefins haswidely increased the possibilities in controlling the polymer composition, polymer structure, tacticity and special properties with high precision. these catalysts allow the synthesis of isot...