Optically active II-VI semiconductor nanocrystals via chiral phase transfer

By Maria V. Mukhina,Vladimir G. Maslov, Ivan V. Korsakov, Finn Purcell Milton, Alexander Loudon, Alexander V. Baranov, Anatoly V. Fedorov, Yurii K. Gun’ko

May 24, 2018

  • Year

  • Technique

  • Industry

Title

Optically active II-VI semiconductor nanocrystals via chiral phase transfer

Author

Maria V. Mukhina,Vladimir G. Maslov, Ivan V. Korsakov, Finn Purcell Milton, Alexander Loudon, Alexander V. Baranov, Anatoly V. Fedorov, Yurii K. Gun’ko

Year

2015

Journal

MRS Proceedings

Abstract

We report optically active ensembles of II-VI semiconductor nanocrystals prepared via chiral phase transfer, which is initiated by exchange of the original achiral ligands capping the nanocrystals surfaces for chiral L- and D-cysteine. We used this method to obtain ensembles of CdSe, CdS, ZnS:Mn, and CdSe/ZnS quantum dots and CdSe/CdS quantum rods exhibited Circular Dichroism (CD) and Circularly Polarized Luminescence (CPL) signals. The optically active nanocrystals revealed the CD and CPL bands strongly correlated with absorption and luminescence bands with unique band “pattern” for each material and the nanocrystal shape.

Full Article

http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9813588&fileId=S1946427415006521

Instrument

J-1500

Keywords

Circular dichroism, Stereochemistry, Circularly polarized luminescence, Nanostructures, Materials