IMAGE 1 (IMAGE) Science China Press Caption Structure characterization on silver iodides filled in MWCNTs. HRTEM images of silver iodides inside MWCNTs viewed along different directions with corresponding structural models (insets: red - iodine, blue - silver). (a-c) HRTEM images with corresponding structural models (inset: red - iodine, blue - silver) along <1 0 0>, <1 1 1>, and <1 1 0> respectively. (d, e) The cross section and longitudinal section of structural model after molecular dynamics simulation. (f) Calculated radial distribution function and average number of neighbors of Ag-I (black line), Ag-Ag (red line) and I-I (blue line) within a sphere of radius r for Ag-I pairs (purple line). Credit Science China Press Usage Restrictions Use with credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.