Circularly Polarized Luminescent CdS Quantum Dots Prepared in a Protein Nanocage

Abstract

CdS quantum dots prepared in ferritin, an α-helix-rich rhombic dodecahedral protein, showed left-handed cicularly polarized luminescence (CPL) from both direct transition and surface-trapping sites with relatively large anisotropy factors. Utilizing laser photoetching, the PL/CPL bands from surface-trapping sites blue-shifted with decreased QD size, but the direct transition band disappeared. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.