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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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 Portfolio 2020-07-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-020-17032-8
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author Nima Taghipour
Savas Delikanli
Sushant Shendre
Mustafa Sak
Mingjie Li
Furkan Isik
Ibrahim Tanriover
Burak Guzelturk
Tze Chien Sum
Hilmi Volkan Demir
author_facet Nima Taghipour
Savas Delikanli
Sushant Shendre
Mustafa Sak
Mingjie Li
Furkan Isik
Ibrahim Tanriover
Burak Guzelturk
Tze Chien Sum
Hilmi Volkan Demir
author_sort Nima Taghipour
collection DOAJ
description 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.
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spelling doaj.art-339ca91821f84c629272114d07f069042022-12-21T18:33:25ZengNature PortfolioNature Communications2041-17232020-07-011111810.1038/s41467-020-17032-8Sub-single exciton optical gain threshold in colloidal semiconductor quantum wells with gradient alloy shellingNima Taghipour0Savas Delikanli1Sushant Shendre2Mustafa Sak3Mingjie Li4Furkan Isik5Ibrahim Tanriover6Burak Guzelturk7Tze Chien Sum8Hilmi Volkan Demir9Department of Electrical and Electronics Engineering, Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent UniversityDepartment of Electrical and Electronics Engineering, Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent UniversityLuminous! Centre of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, School of Physical and Mathematical Sciences, School of Materials Science and Engineering, Nanyang Technological UniversityDepartment of Electrical and Electronics Engineering, Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent UniversitySchool of Physical and Mathematical Sciences, Nanyang Technological UniversityDepartment of Electrical and Electronics Engineering, Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent UniversityDepartment of Electrical and Electronics Engineering, Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent UniversityAdvanced Photon Source, Argonne National LaboratorySchool of Physical and Mathematical Sciences, Nanyang Technological UniversityDepartment of Electrical and Electronics Engineering, Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent UniversityColloidal 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.https://doi.org/10.1038/s41467-020-17032-8
spellingShingle Nima Taghipour
Savas Delikanli
Sushant Shendre
Mustafa Sak
Mingjie Li
Furkan Isik
Ibrahim Tanriover
Burak Guzelturk
Tze Chien Sum
Hilmi Volkan Demir
Sub-single exciton optical gain threshold in colloidal semiconductor quantum wells with gradient alloy shelling
Nature Communications
title Sub-single exciton optical gain threshold in colloidal semiconductor quantum wells with gradient alloy shelling
title_full Sub-single exciton optical gain threshold in colloidal semiconductor quantum wells with gradient alloy shelling
title_fullStr Sub-single exciton optical gain threshold in colloidal semiconductor quantum wells with gradient alloy shelling
title_full_unstemmed Sub-single exciton optical gain threshold in colloidal semiconductor quantum wells with gradient alloy shelling
title_short Sub-single exciton optical gain threshold in colloidal semiconductor quantum wells with gradient alloy shelling
title_sort sub single exciton optical gain threshold in colloidal semiconductor quantum wells with gradient alloy shelling
url https://doi.org/10.1038/s41467-020-17032-8
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