Investigations of Different Phases Responsible for Changes in Optical Properties of Organic Semiconducting Device Material Thin Films

Figure 2

FTIR spectra of (Znq₂)⋅2H₂O and (Znq₂)₄ powders. Note that the broad peak at 3400 cm⁻¹ characteristic of OH stretching is missing in (Znq₂)₄.

(a)

(b)