Supramolecular Photonics Materials

Photonics Materials and Devices

Part 2 reviews the materials properties of photonic materials, such as structure (chemical bonds) and electrical conductivity (bands) in Group IV and III-V compound/alloy semiconductors. The correlation of the principal quantum number with optical, thermal and mechanical properties is examined. The definition of effective mass qualifies the energy-wavenumber dispersion relation for direct or in...

Chalcogenide Glass Materials for Integrated Infrared Photonics

Chalcogenide glasses (ChGs) are amorphous compounds containing the chalcogen elements (S, Se, Te) and exhibit wide infrared transparency windows. They are easy to synthesize in bulk and thin film forms and their compositional flexibility allows tuning of optical properties such as refractive index making them ideal for infrared photonics. We have studied the material attenuation in ChGs that ar...

Multifunctional materials for electronics and photonics

The bottom–up approach is considered a potential alternative for low cost manufacturing of nanostructured materials [1]. It is based on the concept of self–assembly of nanostructures on a substrate, and is emerging as an alternative paradigm for traditional top down fabrication used in the semiconductor industry. We demonstrate various strategies to control nanostructure assembly (both organic ...

Supramolecular materials: Longer and safer gastric residence.

Cucurbituril-based supramolecular engineered nanostructured materials.

Cucurbituril (CB) is a unique macrocycle with a rigid symmetrical structure, which is composed of two identical hydrophilic portals decorated with partially negatively charged carbonyl groups and a hydrophobic cavity. A number of different nanostructured materials, including nanoparticles, nanocomposites, vesicles and rods, have been prepared by taking advantage of the varying cavity size of th...