Optically active quantum dots with induced circularly polarized luminescence in amphiphilic peptide dendron hydrogel

April 9, 2019

Title

Optically active quantum dots with induced circularly polarized luminescence in amphiphilic peptide dendron hydrogel

Author

Chengxi Li, Xue Jin, Tonghan Zhao, Jin Zhou, Pengfei Duan

Year

2019

Journal

Nanoscale Advances

Abstract

In this work, water-soluble semiconductor quantum dots (QDs) showing induced circularly polarized luminescence (CPL) in an organic-inorganic coassembled hydrogel were demonstrated. Achiral QDs can be encapsulated into chiral peptide dendron hydrogel through the procedure of cogelation. These cogels display intense induced circularly polarized emission. In addition, the direction of CPL property of QDs cogels could be regulated by the supramolecular chirality of hydrogels. Our findings reveal that the emergence of CPL achiral QDs can be trigged by the chirality transfer in a multiple component dendron hydrogel system. This study has given a new understanding into the design of functional chiroptical materials.

Instrument

CPL-200

Keywords

Circularly polarized luminescence, Stereochemistry, Semiconductor, Nanostructures, Materials