This work has been motivated by the outstanding need to prepare suitable substrate for growth of III-nitride heteroepitaxial thin films. The issue of lattice and thermal expansion mismatches between the substrates and overlayers, which results in a high threading dislocation density in the films, is seen to be detrimental to photon and carrier transport in these systems. Thus, looking for appropriate substrates or modifying substrates appropriately, has attracted enormous attentions. The work includes the chemical and structural modifications of silicon, gallium arsenide and sapphire...
This work has been motivated by the outstanding need to prepare suitable substrate for growth of III-nitride heteroepitaxial thin films. The issue of ...
In the recent past, Heterocycles becomes an important class of compounds, making up more than half of all known organic compounds. Heterocycles are present in a wide variety of drugs, most vitamins, many natural products, biomolecules, and biologically active compounds, including antimicrobial, anticancer, anti-inflammatory, antidepressant, antimalarial, anti-HIV, antiviral, plant activators agents.
In the recent past, Heterocycles becomes an important class of compounds, making up more than half of all known organic compounds. Heterocycles are pr...
