HIGHLIGHT High Resolution Electron Microscopy of Ordered Polymers and Organic Molecular Crystals: Recent Developments and Future Possibilities

ABSTRACT: High Resolution Elec-tron Microscopy (HREM) has made it possible to directly image the detailed organization of a vari-ety of polymers and organic mol-ecular crystals. For organic materi-als it is imperative to use low dose techniques that minimize the struc-tural reorganizations that inevita-bly occur during electron beam irradiation. This article reviews recent developments in low dose HREM from our own laboratory and elsewhere. The developments in closely related microstructural characterization techniques are also reviewed. In the future, the ability to correct the spherical aberration of the objective lens, the use of low voltages to increase contrast, and the use of time