Publication: Light-emitting devices based on Type-II InP/ZnO quantum dots
dc.contributor.coauthor | N/A | |
dc.contributor.department | Department of Electrical and Electronics Engineering | |
dc.contributor.department | Graduate School of Sciences and Engineering | |
dc.contributor.kuauthor | Jalali, Houman Bahmani | |
dc.contributor.kuauthor | Karatüm, Onuralp | |
dc.contributor.kuauthor | Melikov, Rustamzhon | |
dc.contributor.kuauthor | Nizamoğlu, Sedat | |
dc.contributor.kuauthor | Sadeghi, Sadra | |
dc.contributor.kuauthor | Srivastava, Shashi Bhushan | |
dc.contributor.schoolcollegeinstitute | College of Engineering | |
dc.contributor.schoolcollegeinstitute | GRADUATE SCHOOL OF SCIENCES AND ENGINEERING | |
dc.date.accessioned | 2024-11-10T00:01:07Z | |
dc.date.issued | 2019 | |
dc.description.abstract | One of the major challenges for present-day quantum dot light-emitting diode (QLED) technology is the transition from toxic heavy metal to "green" material-based devices. This report proposes an alternative cadmium-free material of type-II InP/ZnO core/shell quantum dots (QDs) for QLEDs. In this study, InP/ZnO core/shell QDs are nanoengineered by adjusting the shell coverage for optimum in-film quantum efficiency, and device parameters are investigated to reach a maximum QLED performance. The fully solution processed QLEDs made of biocompatible and environmentally benign QDs presented in this study exhibit low turn on voltage of 2.8 V, external quantum efficiency of 0.53%, and current efficiency of 1 cd/A, with a saturated color emission in the yellow-orange spectral region. This study paves the way towards nontoxic and efficient LEDs using type-II QDs. | |
dc.description.indexedby | WOS | |
dc.description.indexedby | Scopus | |
dc.description.issue | 4 | |
dc.description.openaccess | NO | |
dc.description.publisherscope | International | |
dc.description.sponsoredbyTubitakEu | TÜBİTAK | |
dc.description.volume | 6 | |
dc.identifier.doi | 10.1021/acsphotonics.8b01618 | |
dc.identifier.issn | 2330-4022 | |
dc.identifier.quartile | Q1 | |
dc.identifier.scopus | 2-s2.0-85063133976 | |
dc.identifier.uri | https://doi.org/10.1021/acsphotonics.8b01618 | |
dc.identifier.uri | https://hdl.handle.net/20.500.14288/15917 | |
dc.identifier.wos | 465188900018 | |
dc.keywords | Colloidal quantum dots | |
dc.keywords | Light-emitting devices | |
dc.keywords | Indium phosphide | |
dc.keywords | Type-Ii band alignment | |
dc.keywords | Current efficiency | |
dc.keywords | External quantum efficiency luminescent solar concentrators | |
dc.keywords | High-efficiency | |
dc.keywords | Nanocrystals | |
dc.keywords | Diodes | |
dc.keywords | Bright | |
dc.keywords | Electroluminescence | |
dc.keywords | Emission | |
dc.language.iso | eng | |
dc.publisher | American Chemical Society (ACS) | |
dc.relation.grantno | Technological Research Council of Turkey (TUBITAK) [115E242, 115E115] | |
dc.relation.grantno | Turkish Academy of Science and Science Academy This project has received funding from Technological Research Council of Turkey (TUBITAK) with Project Nos. 115E242 and 115E115. S.N. also acknowledges the support by Turkish Academy of Science and Science Academy. We thank KUYTAM (Koc University Surface Science and Technology Center) for AFM infrastructure and Ataturk University DAYTAM for UPS infrastructure. The authors gratefully acknowledge Dr. Amir Motallebzadeh for AFM measurements and Ahmet Emre Kasapoglu for UPS measurements. | |
dc.relation.ispartof | ACS Photonics | |
dc.subject | Nanoscience and nanotechnology | |
dc.subject | Materials science, Multidisciplinary | |
dc.subject | Optics | |
dc.subject | Physics, Applied | |
dc.subject | Physics, Condensed matter | |
dc.title | Light-emitting devices based on Type-II InP/ZnO quantum dots | |
dc.type | Journal Article | |
dspace.entity.type | Publication | |
local.contributor.kuauthor | Karatüm, Onuralp | |
local.contributor.kuauthor | Jalali, Houman Bahmani | |
local.contributor.kuauthor | Sadeghi, Sadra | |
local.contributor.kuauthor | Melikov, Rustamzhon | |
local.contributor.kuauthor | Srivastava, Shashi Bhushan | |
local.contributor.kuauthor | Nizamoğlu, Sedat | |
local.publication.orgunit1 | GRADUATE SCHOOL OF SCIENCES AND ENGINEERING | |
local.publication.orgunit1 | College of Engineering | |
local.publication.orgunit2 | Department of Electrical and Electronics Engineering | |
local.publication.orgunit2 | Graduate School of Sciences and Engineering | |
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