Carbon nanotube in situ TEM large strain and chiral angle analysis enabled by modular coupon and MEMS test platform system

A modular MEMS-based test platform enables straining of pristine carbon nanotubes inside a transmission electron microscope. The interchangeable coupon is compatible with the high-temperature environment of nanostructure synthesis whereas the metal leads of the micro actuator are not exposed to the harsh synthesis conditions. The actuator of the universal test platform translates its large displacement onto the shuttle of the coupon where the as-grown carbon nanotubes are strained and simultaneously observed by the electron beam passing through the backside hole. Electron diffraction enables assignment of nanotube chirality.