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Title: Management of electroluminescence from silver-doped colloidal quantum well light-emitting diodes
Authors: Liu, Baiquan
Sharma, Manoj
Yu, Junhong
Wang, Lin
Shendre, Sushant
Sharma Ashma
Izmir, Merve
Delikanli, Savas
Altintas, Yemliha
Dang, Cuong
Sun, Handong
Demir, Hilmi Volkan
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2022
Source: Liu, B., Sharma, M., Yu, J., Wang, L., Shendre, S., Sharma Ashma, Izmir, M., Delikanli, S., Altintas, Y., Dang, C., Sun, H. & Demir, H. V. (2022). Management of electroluminescence from silver-doped colloidal quantum well light-emitting diodes. Cell Reports Physical Science, 3(5), 100860-.
Project: MOE-RG62/20
NRF-CRP23- 2019-0007
Journal: Cell Reports Physical Science
Abstract: Impurity doping is a promising strategy to afford colloidal nanocrystals exhibiting novel optical, catalytic, and electronic characteristics. However, some significant properties of noble metal-doped nanocrystals (NMD-NCs) remain unknown. Here, we report the electroluminescence (EL) from NMD-NCs. By doping silver impurity into cadmium selenide colloidal quantum wells (CQWs), dual-emission emitters are achieved and a light-emitting diode (LED) with a luminance of 1,339 cd m−2 is reported. In addition, the proposed energy gap engineering to manage exciton recombination is a feasible scheme for tunable EL emissions (e.g., the dopant emission is tuned from 606 to 761 nm). Furthermore, an organic-inorganic hybrid white LED based on CQWs is realized, reaching a color rendering index of 82. Moreover, flexible CQW-LEDs are reported. The findings present a step to unveil the EL property of NMD-NCs, which can be extended to other noble metal impurities, and pave the pathway for NMD-NCs as a class of electronic materials for EL applications.
ISSN: 2666-3864
DOI: 10.1016/j.xcrp.2022.100860
Schools: School of Electrical and Electronic Engineering 
School of Physical and Mathematical Sciences 
School of Materials Science and Engineering 
Research Centres: LUMINOUS! Centre of Excellence for Semiconductor Lighting & Displays 
Rights: © 2022 The Authors. This is an open access article under the CC BY-NC-ND license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
MSE Journal Articles
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