Evaluation of the Nanodomain Structure in In-Zn-O Transparent Conductors.

The optimization of novel transparent conductive oxides (TCOs) implies a better understanding of the role that the dopant plays on the optoelectronic properties of these materials. In this work, we perform a systematic study of the homologous series ZnInO (IZO) by characterizing the specific location of indium in the structure that leads to a nanodomain framework to release structural strain. Through a systematic study of different terms of the series, we have been able to observe the influence of the value in the nano-structural features of this homologous series. The stabilization and visualization of the structural modulation as a function of is discussed, even in the lowest term of the series ( = 3). The strain fields and atomic displacements in the wurtzite structure as a consequence of the introduction of In are evaluated.