Functional Ceramics

Introduction

Theory Solids

Structure of solids

Electronic Properties

Worked out Examples

TiO2

Nernst sensors

Bulk

Defects

Structure Types

Point defects

Transport

Charge Carriers

Dopants

Notation

Kroger vink

Interfaces

Junctions

Brouwer diagram

Solid liquid Junction

Types

Charge transport

Electronic structure

Space charge region

Photoelectrochemical cells

Ceramics

Functional

Structural

Examples

Goal

Used for their mechanical properties

Definition

All inorganic materials that are not metallic

Used for their ionic, electronic properties and can be used for the energy transition

Use functional ceramics to improve the energy transition

Main problem

What occurs with a surface or interface if you expose a ceramic to a certain environment (solid/liquid/gas) and you put energy into the system. And how can we alter this interface?

For example hard coatings on drill bits

Photocatalysation of NOx, Anti fogging, bacterial remidation with TiO2

Thermochemical dissociation of CO2 and H2O on ceramic surface

Can be a solid-solid, solid-gas, solid-liquid or solid-liquid-gas example

Nano particles with different electronic properties

Solar cells, etc