The third EPI film, prepared at a substrate temperature of 350 K, is also better ordered and has three Bragg peaks at 0.51, 1.01 and 2.02 Å–1, which correspond to d-spacings of 12.43, 6.22 and 3.11 Å, respectively. The first and most intense peak at 0.51 Å–1 again shows molecules in an approximately upright-standing orientation and appears to be the same phase which is present in films prepared at 200 K, and very similar, but not identical, to the phases present at 300 K; the second peak at 1.01 Å–1 is the second order reflection of the same peak series. The final peak at 2.02 Å–1 again suggests an approximately flat-lying molecular orientation and a coexistence of standing and lying domains. In all cases, films show defined textures with preferred orientations with respect to the substrate.