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Fig. 4 | Advanced Structural and Chemical Imaging

Fig. 4

From: Investigation of hole-free phase plate performance in transmission electron microscopy under different operation conditions by experiments and simulations

Fig. 4

TEM images of CNT bundles taken with an HFPP under case A conditions (small ZOB at room temperature). a–c Images of the same sample region after 2 s, 6 s and 12 s of illumination corresponding to phase shifts of 0.5\(\pi\), 1.5\(\pi\) and 2.5\(\pi\) (cf. Fig. 1b). Due to strong contamination growth at the ZOB and the corresponding change of phase shift, contrast inversions are observed. d Intensity profiles along the arrows in (a–c). The signal decreases over time due to scattering in the contamination patch with increasing thickness

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