Light-Emitting diodes with Cu-Doped colloidal quantum wells: from ultrapure green, tunable dual-emission to white light

Simple item page
buir.contributor.authorSharma, Manoj
buir.contributor.authorSharma, Ashma
buir.contributor.authorYeltik, Aydan
buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage1901983-9en_US
dc.citation.issueNumber38en_US
dc.citation.spage1901983-1en_US
dc.citation.volumeNumber15en_US
dc.contributor.authorLiu, B.en_US
dc.contributor.authorSharma, Manojen_US
dc.contributor.authorYu, J.en_US
dc.contributor.authorShendre, S.en_US
dc.contributor.authorHettiarachchi, C.en_US
dc.contributor.authorSharma, Ashmaen_US
dc.contributor.authorYeltik, Aydanen_US
dc.contributor.authorWang, L.en_US
dc.contributor.authorSun, H.en_US
dc.contributor.authorDang, C.en_US
dc.contributor.authorDemir, Hilmi Volkanen_US
dc.date.accessioned2020-02-11T06:04:34Z
dc.date.available2020-02-11T06:04:34Z
dc.date.issued2019
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentDepartment of Physicsen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractCopper‐doped colloidal quantum wells (Cu‐CQWs) are considered a new class of optoelectronic materials. To date, the electroluminescence (EL) property of Cu‐CQWs has not been revealed. Additionally, it is desirable to achieve ultrapure green, tunable dual‐emission and white light to satisfy the various requirement of display and lighting applications. Herein, light‐emitting diodes (LEDs) based on colloidal Cu‐CQWs are demonstrated. For the 0% Cu‐doped concentration, the LED exhibits Commission Internationale de L'Eclairage 1931 coordinates of (0.103, 0.797) with a narrow EL full‐wavelength at half‐maximum of 12 nm. For the 0.5% Cu‐doped concentration, a dual‐emission LED is realized. Remarkably, the dual emission can be tuned by manipulating the device engineering. Furthermore, at a high doping concentration of 2.4%, a white LED based on CQWs is developed. With the management of doping concentrations, the color tuning (green, dual‐emission to white) is shown. The findings not only show that LEDs with CQWs can exhibit polychromatic emission but also unlock a new direction to develop LEDs by exploiting 2D impurity‐doped CQWs that can be further extended to the application of other impurities (e.g., Mn, Ag).en_US
dc.description.sponsorshipNational Research Foundation, Prime Minister's Office, Singapore under its Investigatorship program. Grant Number: NRF‐NRFI2016‐08en_US
dc.embargo.release2020-09-18
dc.identifier.doi10.1002/smll.201901983en_US
dc.identifier.issn1613-6810
dc.identifier.urihttp://hdl.handle.net/11693/53240
dc.language.isoEnglishen_US
dc.publisherWILEY-VCH Verlag GmbH & Co. KGaA, Weinheimen_US
dc.relation.isversionofhttps://doi.org/10.1002/smll.201901983en_US
dc.source.titleSmallen_US
dc.subjectColloidal quantum wellsen_US
dc.subjectDual emissionen_US
dc.subjectImpurity dopingen_US
dc.subjectLight‐emitting diodesen_US
dc.subjectNanoplateletsen_US
dc.titleLight-Emitting diodes with Cu-Doped colloidal quantum wells: from ultrapure green, tunable dual-emission to white lighten_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Light-Emitting_Diodes_with_Cu-Doped_Colloidal_Quantum_Wells_From_Ultrapure_Green_Tunable_Dual-Emission_to_White_Light.pdf
Size:
3.29 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Department of Electrical and Electronics Engineering
Department of Physics
Institute of Materials Science and Nanotechnology (UNAM)