Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/140117
Title: | Light-emitting diodes with Cu-doped colloidal quantum wells : from ultrapure green, tunable dual-emission to white light | Authors: | Liu, Baiquan Sharma, Manoj Yu, Junhong Shendre, Sushant Hettiarachchi, Chathuranga Sharma, Ashma Yeltik, Aydan Wang, Lin Sun, Handong Dang, Cuong Demir, Hilmi Volkan |
Keywords: | Engineering::Electrical and electronic engineering | Issue Date: | 2019 | Source: | Liu, B., Sharma, M., Yu, J., Shendre, S., Hettiarachchi, C., Sharma, A., . . . Demir, H. V. (2019). Light-emitting diodes with Cu-doped colloidal quantum wells : from ultrapure green, tunable dual-emission to white light. Small, 15(38), 1901983-. doi:10.1002/smll.201901983 | Journal: | Small | Abstract: | Copper-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). | URI: | https://hdl.handle.net/10356/140117 | ISSN: | 1613-6810 | DOI: | 10.1002/smll.201901983 | Rights: | This is the accepted version of the following article: Liu, B., Sharma, M., Yu, J., Shendre, S., Hettiarachchi, C., Sharma, A., . . . Demir, H. V. (2019). Light-emitting diodes with Cu-doped colloidal quantum wells : from ultrapure green, tunable dual-emission to white light. Small, 15(38), 1901983-, which has been published in final form at doi:10.1002/smll.201901983. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html]. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | EEE Journal Articles SPMS Journal Articles |
SCOPUSTM
Citations
10
40
Updated on Mar 24, 2023
Web of ScienceTM
Citations
10
36
Updated on Mar 30, 2023
Page view(s)
240
Updated on Mar 29, 2023
Download(s) 50
28
Updated on Mar 29, 2023
Google ScholarTM
Check
Altmetric
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.