Controlling the exciton fine structure splitting in CdSe/CdS dot-in-rod nanojunctions

ACS Nano
Gabriele RainòRainer F Mahrt

Abstract

We demonstrate control and tunability of the exciton fine-structure splitting by properly engineering a nanojunction consisting of a CdSe nanocrystal core and an asymmetric rod-like CdS shell. Samples with small core and/or thick rod diameters exhibit a strongly reduced fine-structure splitting resulting from a reduced electron-hole exchange interaction. These results shed light onto the electronic configuration of such nanosystems and, apart from being of fundamental interest, could enable the use of colloidal nanocrystals as a source of entangled photons.

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Citations

Oct 23, 2014·Small·Francesco Di StasioRoman Krahne
Apr 5, 2016·Chemical Society Reviews·Kaifeng Wu, Tianquan Lian
Jun 19, 2015·Chemical Society Reviews·Joel Q GrimIwan Moreels
Aug 31, 2016·Topics in Current Chemistry·Freddy T Rabouw, Celso de Mello Donega
May 28, 2014·ACS Nano·Andrés Granados Del ÁguilaPeter C M Christianen
Oct 15, 2013·Chemical Society Reviews·Mark J FernéeBrahim Lounis
Aug 26, 2017·Scientific Reports·Sotirios BaskoutasGabriel Bester
Jan 2, 2014·The Journal of Physical Chemistry Letters·Benjamin T DirollChristopher B Murray

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