Comprehensive physics-based simulations of GaN-based light-emitting diodes and laser diodes are presented. The talk discusses unique material properties of nitride compounds as well as performance-limiting physical mechanisms like self-heating, current crowding, and carrier leakage. Measurements are used to validate the models and to extract critical device parameters.

A novel ferrocene substituted PDA (FEPDA) material was synthesized and its chromatic phase transition behavior was studied under the application of a negative bias voltage. By the combination with CMS techniques, FEPDA materials could be used as a probe for mapping the topographic carrier density distribution in organic devices.

Pharmaceutically active compounds in ionic liquid form immobilized onto mesoporous silica are stable, easily handled solids, with fast and complete release from the carrier material when placed into an aqueous environment. Depending on specific ion-surface interactions, they may also exhibit improved thermal stability when compared to the non-adsorbed compounds.

The latest advances in colloidal-quantum-dot material processing are combined with a double-sided junction architecture, which is done by efficiently incorporating indium ions in the ZnO eletrode. This platform allows the collection of all photogenerated carriers even at the maximum power point. The increased depletion width in the device facilitates full carrier collection, leading to a record...

A new technique for determining carrier diffusion lengths in direct gap semiconductors by cathodoluminescence measurement is presented. Ambipolar diffusion lengths are determined for GaAs quantum well material, bulk GaAs, and AlzGa1-zAs with x up to 0.38. A large increase in the diffusion length is found as x approaches 0.38 and is attributed to an order of magnitude increase in lifetime.

DNA, apart from being a natural biological information carrier, has also been recognized as a useful building material in the field of nanotechnology. Its miniature scale, geometric properties, and molecular recognition capacity make DNA an appealing candidate for the construction of novel nanomaterials. Here we summarize the latest developments and describe the challenges and emerging applicat...

The last decade has seen the emergence of vascular-targeted drug delivery systems as a promising approach for the treatment of many diseases, such as cardiovascular diseases and cancer. In this field, one of the major challenges is carrier margination propensity (i.e., particle migration from blood flow to vessel walls); indeed, binding of these particles to targeted cells and tissues is only p...

Purpose: The aim of this study was to enhance the dissolution rate of Cyclosporine A, a poorly water-soluble drug by developing a self micro-emulsifying (SME) tablet formulation by using the liquisolid compact technique. A liquisolid system is formed by converting a liquid formulation into a dry, free-flowing and compressible powder mixture with selected carrier material and coating material. T...

CONTEXT In recent years, the continuous improvements in molecular biology techniques have made it possible to detect carriers for several genetic conditions, including cystic fibrosis (CF). In some countries, CF carrier screening is offered to increasing subset of the general population. Offering of carrier screening at a population level should not be decided by local health authorities only, ...

The ability of Aspergillus japonicus ATCC 20236 to colonize different synthetic materials (polyurethane foam, stainless steel sponge, vegetal fiber, pumice stones, zeolites, and foam glass) and to produce fructooligosaccharides (FOS) from sucrose (165 g/L) is described. Cells were immobilized in situ by absorption, through direct contact with the carrier particles at the beginning of fermentati...