ESRF user meeting: local structure of amorphous and crystalline WO3-x thin films studied by XANES and EXAFS
Date:
The presence of intrinsic oxygen defects affects the local ordering and electronic structure in WO3-x. W 5d states split into two sub-bands with a dominant lower-energy component, tunable via annealing atmosphere. Changes in W–O coordination occur prior to long-range crystallization, indicating that electronic properties are governed by short-range order.