Twin Pathways: Discerning the Origins of Multiply Twinned Colloidal Nanoparticles
Abstract
The structure of multiply twinned particles (MTPs) provides an example of how specific crystallographic features dictate the geometric shape of finite‐sized crystals. The formation of MTPs during colloidal synthesis can occur through at least two different pathways: 1) growth from multiply twinned seeds or 2) the stepwise formation of new twin boundaries on single‐crystalline seeds (either by particle overgrowth or multiparticle attachment). By utilizing in situ transmission electron microscopy, recent studies have provided real‐time evidence for both pathways. Looking forward, the knowledge of specific evolution pathways that occur under a given synthetic condition will aid in the design of robust MTP syntheses. More importantly, further studies pertaining to the structural evolution and energetics of nanoparticles are needed to provide a complete understanding of MTP formation pathways.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 09, 2021
- Source ID
- 10.1002/anie.202015166
Entities
People
- Chad Mirkin
- Jingshan Du
- Sara M. Rupich
- Wenjie Zhou
Organizations
- Air Force Office of Scientific Research
- Northwestern University
- Sherman Fairchild Foundation