Indium oxide

This chapter introduces the single crystal growth and fundamental properties of indium oxide (In2O3), which is a transparent semiconducting oxide. Tin-doped In2O3 is widely used for transparent electrodes in practical applications such as solar cells. For electronic device applications, most In2O3 films were grown on glass at low temperature with polycrystalline and/or amorphous crystalline structures. To understand the potential of the material and its functions, single crystals and epilayers are discussed as model systems. The chapter starts by presenting single crystal growth, including thin film epitaxial growth. It ends by explaining band structure, defects relating to oxygen vacancies, and semiconducting properties.