Sub-single exciton optical gain threshold in colloidal semiconductor quantum wells with gradient alloy shelling

Sub-single exciton optical gain threshold in colloidal semiconductor quantum wells with gradient alloy shelling

Colloidal quantum wells are highly promising for applications of solution-processed lasers, but their performance is limited by multi-excitonic nature of the materials. Here, the authors demonstrate optical gain in graded alloy core/shell CdSe/CdS@CdZnS quantum wells at less than one exciton per par...

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Bibliographic Details
Main Authors: Nima Taghipour, Savas Delikanli, Sushant Shendre, Mustafa Sak, Mingjie Li, Furkan Isik, Ibrahim Tanriover, Burak Guzelturk, Tze Chien Sum, Hilmi Volkan Demir
Format: Article
Language:English
Published: Nature Publishing Group 2020-07-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-020-17032-8
Description
Summary:Colloidal quantum wells are highly promising for applications of solution-processed lasers, but their performance is limited by multi-excitonic nature of the materials. Here, the authors demonstrate optical gain in graded alloy core/shell CdSe/CdS@CdZnS quantum wells at less than one exciton per particle resulting in ultralow thresholds.
ISSN:2041-1723

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