JNC 315: Recent Trends in Inorganic and Nano Materials (3.0 credits)

Instructor: Dr. Pratap Vishnoi

  • Extended inorganic solids:

Different types of complex metal oxides; perovskites (ABO3), Ruddlesden–Popper, Dion-Jacobson, Aurivillius, Brownmillerite, hexagonal phases, Spinel and pyrochlore; synthesis, structure, band theory in solids, electronic properties, optical properties, transport properties, phonon properties; electrochemistry of transition metal oxides (LiCoO2, LiNiO2, LiMn2O4) and utility in energy storage.

Antiperovskites and their functional properties. Metal pnictides; Skutterudites (CoSb3 etc.), Zn4Sb3. Metal chalcogenides; CuFeS2 (chalcopyrite), AgCuTe, Bi2Se3 and other complex chalcogenides. Intermetallics; Stoichiometric and non-stoichiometric, half Heusler, full Heusler compounds. Natrium Superionic CONductor (NaSiCON; e.g. Na1+xZr2SixP3-xO12, 0 < x < 3) compounds and ion conductivity in NaSiCONs. Topological insulator, topological crystal insulator, Dirac semimetal, Weyl semimetal.

  • Metal halides:

All-inorganic halide perovskites and hybrid halide perovskites, structural descriptors (tolerance factor and octahedral factor), layered metal halides (α-RuCl3), and their optical and topological quantum behavior. Chemical control over dimensionality (0D, 1D, 2D and 3D). Metal to metal charge transfer in mixed-valence metal halides and ligand to metal charge transfer in metal halides.

  • 2D nanomaterials:

Introduction, structure, classification of 2D materials the compound and the elemental materials. Rise of various post-graphene elemental 2D materials; borophene, silicene, phosphorene, arsenene, antimonene etc. Binary, ternary and quaternary 2D materials; metal dichalcogenides (MoS2, MoSe2), metal phospho-chalcogenides (Mn2P2S6, AgInP2S3), MXenes. Top-down approach for synthesis of 2D materials; liquid and electrochemical exfoliation Tuning properties of 2D materials by chemical functionalization, self-assembly and heterostructures. Electronic, transport properties, and lattice anharmonicity.

Desirable prerequisites: basic knowledge of crystallography, ligand field theory, geometric aspects of metal complexes.           

References: Recent literature