Azo-functionalised materials are of special interest due to their photochromic nature, ie
reversible trans–cis isomerisation upon photoirradiation. The combination of photosensitivity …

Liquid crystal is an intermediate phase between the crystalline solid and an isotropic liquid,
a very common substance in our daily lives. Two major classes of liquid crystal are lyotropic …

Disperse azo dyes are synthesized and characterized by 1 H NMR, 13 C NMR, LC-MS,
Elemental analysis, UV–visible, and fluorescence spectroscopy methods. The azo dyes …

A series of novel azo-coumarin derivatives with different aliphatic chain length (3a-e) have
been synthesized and characterized for liquid crystal properties and their photoswitching …

Liquid crystals carrying heterocyclic moieties are soft functional materials with immense
technological impetus due to their unique optical properties. The central core units, linking …

The requirement of selecting a desired wavelength channel from a number of available
wavelengths is of great research interest for application in advanced light-wave systems …

Two isomeric cyanostilbene photoswitchable bent-core mesogens with polar liquid crystal
phases in which macroscopic polarization and luminescence can be light-modulated are …

Eight homologous series of 2-(or 3-) substituted phenyl 4ʹ-(4ʺ-alkoxy phenylazo)
benzoates (I na–h) were prepared in which, within each homologous series, the length of …

In this paper, we show that the optical properties such as extinction coefficient, refractive
index, optical conductivity and optical energy band gap of aminoazobenzene and …

Extensive efforts have been made to pursue a low-friction state with promising applications
in many fields, such as mechanical and biomedical engineering. Among which, the load …