BF image with corresponding SAED pattern and HRTEM image of approximately 90° kink in InP NWs. (a) BF image of the kink of approximately 90° in InP NWs. The inset is SAED pattern corresponding to the kink in which the diffraction spots indicated by white arrows are split into irregular spots. (b) HRTEM image of the selected area in (a). The observed amorphous regions are pointed by arrows.