Electrical and Chemical Transport

The transport properties in ionic solids involve the transport of ionic and electronic defects in bulk and across / along interfaces (grain boundaries, electrodes and surfaces). In contrast to electrical transport, in ionic solids chemical transport comprises the coupled motion of oppositely charged carriers (ions and electrons, or two ionic defects).

• Mechanisms of ion transport
• Irreversible thermodynamics and master equation approach to diffusion
• Influence of ion-electron interaction on transport properties
• Transport across and along homo- and heterojunctions
• Constriction and percolation effects

• J. Maier: Mass Transport in the Presence of Internal Defect Reactions,Journal of the American Ceramic Society 76, 1212, 1218, 1223 (1993). DOI: 10.1111/j.1151-2916.1993.tb03743.x, 10.1111/j.1151-2916.1993.tb03744.x, 10.1111/j.1151-2916.1993.tb03745.x
• K. D. Kreuer: Proton-Conducting Oxides. Annu. Rev. Mater. Res. 33 (2003) 333–359. DOI: 10.1146/annurev.matsci.33.022802.091825

• Proton conduction in nanocrystalline oxides
• Photovoltaic properties and defect chemistry of nanocrystalline materials for solar cells
• Interface effects on the electrical conductivity of oxide thin films
• Blocking grain boundaries in acceptor-doped BaZrO₃ proton conductors
• Size effects in nanocrystalline SrTiO₃
• Space resolved optical spectroscopy on Fe-doped SrTiO₃ single crystals
• Space charge effects at dislocations in TiO₂
• Formation and migration of oxygen vacancies in (La,Ba,Sr)(Co,Fe)O_3-δ perovskites
• Electronic wiring and the defect chemistry of nano-anatase Li_xTiO_2-δ battery electrodes
• transport in LiFePO4 single crystals
• Formation and mobility of (H⁺, Li⁺, Na⁺) in ionomers / polyelectrolytes
• Proton conduction mechanisms in model compounds
• "Soggy sand" electrolytes with mesoporous silica fillers
• The influence of ion-pair transport in salt containing liquid electrolytes
• electrode networks for Li-based batteries
• nano-ionics
• polarization of electrolytes
• Analysis of electrochemical impedance spectroscopy of hybrid perovskite device
• Nanoionics of hybrid perovskite interfaces
• Optoionics of hybrid perovskites topics