Back to Publications

Real-space imaging of nanoparticle transport and interaction dynamics by graphene liquid cell TEM

Sungsu Kang, Ji-Hyun Kim, Minyoung Lee, Ji Woong Yu, Joodeok Kim, Dohun Kang, Hayeon Baek, Yuna Bae, Byung Hyo Kim, Seulki Kang, Sangdeok Shim, So-Jung Park, Won Bo Lee, Taeghwan Hyeon, Jaeyoung Sung*, Jungwon Park*

Science AdvancesVol. 7, No. 49, pp. eabi5419202110.1126/sciadv.abi5419

[Nanoparticle Imaging] [Colloidal Dynamics]

Abstract

Graphene liquid-cell electron microscopy tracks nanoparticles in real time. A model with a locally varying diffusion rate explains their unusual step-size distribution and reveals two-step coalescence: particles meet at a coating-separated distance, then rotate into contact.