Controlling the influence of Auger recombination on the performance of quantum-dot light-emitting diodes

Bae, Wan Ki; Park, Young-Shin; Lim, Jaehoon; Lee, Donggu; Padilha, Lazaro A.; McDaniel, Hunter; Robel, Istvan; Lee, Changhee; Pietryga, Jeffrey M.; Klimov, Victor I.

doi:10.1038/ncomms3661

Controlling the influence of Auger recombination on the performance of quantum-dot light-emitting diodes

Journal Article · Fri Oct 25 00:00:00 EDT 2013 · Nature Communications

DOI:https://doi.org/10.1038/ncomms3661· OSTI ID:1623930

Bae, Wan Ki ^[1]; Park, Young-Shin ^[2]; Lim, Jaehoon ^[3]; Lee, Donggu ^[3]; Padilha, Lazaro A. ^[4]; McDaniel, Hunter ^[2]; Robel, Istvan ^[2]; Lee, Changhee ^[3]; Pietryga, Jeffrey M. ^[2]; Klimov, Victor I. ^[2]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Korea Inst. of Science and Technology, Seoul (Korea). Photo-Electronic Hybrid Research Center; DOE/OSTI
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Seoul National Univ. (Korea). Inter-university Semiconductor Research Center
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Universidade Estadual de Campinas, Sao Paulo (Brazil). Instituto de Fisica ‘‘Gleb Wataghin’’

Development of light-emitting diodes (LEDs) based on colloidal quantum dots is driven by attractive properties of these fluorophores such as spectrally narrow, tunable emission and facile processibility via solution-based methods. A current obstacle towards improved LED performance is an incomplete understanding of the roles of extrinsic factors, such as nonradiative recombination at surface defects, versus intrinsic processes, such as multicarrier Auger recombination or electron-hole separation due to applied electric field. Here we address this problem with studies that correlate the excited state dynamics of structurally engineered quantum dots with their emissive performance within LEDs. We find that because of significant charging of quantum dots with extra electrons, Auger recombination greatly impacts both LED efficiency and the onset of efficiency roll-off at high currents. Further, we demonstrate two specific approaches for mitigating this problem using heterostructured quantum dots, either by suppressing Auger decay through the introduction of an intermediate alloyed layer, or by using an additional shell that impedes electron transfer into the quantum dot to help balance electron and hole injection.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1623930

Journal Information:: Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 4; ISSN 2041-1723

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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An ZnMgO:PVP inorganic–organic hybrid electron transport layer: towards efficient bottom-emission and transparent quantum dot light-emitting diodes Zhang, Heng; Chen, Shuming Journal of Materials Chemistry C, Vol. 7, Issue 8 https://doi.org/10.1039/c8tc06121a	journal	January 2019
All-solution processed inverted green quantum dot light-emitting diodes with concurrent high efficiency and long lifetime Yang, Zhiwen; Wu, Qianqian; Lin, Gongli Materials Horizons, Vol. 6, Issue 10 https://doi.org/10.1039/c9mh01053j	journal	January 2019
Highly efficient white electroluminescent devices with hybrid double emitting layers of quantum dots and phosphorescent molecules Oh, Seongkeun; Han, Chang-Yeol; Yang, Heesun Nanoscale, Vol. 11, Issue 19 https://doi.org/10.1039/c9nr02547b	journal	January 2019
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Effects of interface-potential smoothness and wavefunction delocalization on Auger recombination in colloidal CdSe-based core/shell quantum dots Hou, Xiaoqi; Li, Yang; Qin, Haiyan The Journal of Chemical Physics, Vol. 151, Issue 23 https://doi.org/10.1063/1.5125940	journal	December 2019
Perspective: Toward highly stable electroluminescent quantum dot light-emitting devices in the visible range Davidson-Hall, Tyler; Aziz, Hany Applied Physics Letters, Vol. 116, Issue 1 https://doi.org/10.1063/1.5134090	journal	January 2020
Colloidal nanorod heterostructures for photovoltaics and optoelectronics Shim, Moonsub Journal of Physics D: Applied Physics, Vol. 50, Issue 17 https://doi.org/10.1088/1361-6463/aa65a5	journal	March 2017
Balanced carrier injection of quantum dots light-emitting diodes: the case of interface barrier of bilayer ZnO electron transport layer Tu, Yufei; Wang, Shujie; Zhang, Yidong Nanotechnology, Vol. 29, Issue 48 https://doi.org/10.1088/1361-6528/aae0b8	journal	October 2018
Effects of n-butyl amine incorporation on the performance of perovskite light emitting diodes Xu, Lingbo; Qiang, Yaping; Hu, Haihua Nanotechnology, Vol. 30, Issue 10 https://doi.org/10.1088/1361-6528/aaf68c	journal	January 2019
Experimental and simulation studies on FTO/ZnO:Co/CuO hetero-junction structure for solar cell application Dabbabi, Samar; Garcia-Loureiro, A.; Ajili, Mejda Materials Research Express, Vol. 6, Issue 10 https://doi.org/10.1088/2053-1591/ab4152	journal	September 2019
Colloidal quantum-dots surface and device structure engineering for high-performance light-emitting diodes Shang, Yuequn; Ning, Zhijun National Science Review, Vol. 4, Issue 2 https://doi.org/10.1093/nsr/nww097	journal	January 2017
Perspectives on Designer Photocathodes for X-ray Free-Electron Lasers: Influencing Emission Properties with Heterostructures and Nanoengineered Electronic States Moody, Nathan A.; Jensen, Kevin L.; Shabaev, Andrew Physical Review Applied, Vol. 10, Issue 4 https://doi.org/10.1103/physrevapplied.10.047002	journal	October 2018
Double-heterojunction nanorod light-responsive LEDs for display applications Oh, Nuri; Kim, Bong Hoon; Cho, Seong-Yong Science, Vol. 355, Issue 6325 https://doi.org/10.1126/science.aal2038	journal	February 2017
Light extraction analysis and enhancement in a quantum dot light emitting diode Zhu, Ruidong; Luo, Zhenyue; Wu, Shin-Tson Optics Express, Vol. 22, Issue S7 https://doi.org/10.1364/oe.22.0a1783	journal	January 2014
Enhancing extraction efficiency of quantum dot light-emitting diodes by surface engineering Zhang, Qin; Gu, Xiaobing; Chen, Zihan Optics Express, Vol. 25, Issue 15 https://doi.org/10.1364/oe.25.017683	journal	January 2017
High efficient light-emitting diodes with improved the balance of electron and hole transfer via optimizing quantum dot structure Bai, Jinke; Chang, Chun; Wei, Jiahu Optical Materials Express, Vol. 9, Issue 7 https://doi.org/10.1364/ome.9.003089	journal	January 2019
Boosting the efficiency of inverted quantum dot light-emitting diodes by balancing charge densities and suppressing exciton quenching through band alignment. Pan, Jiangyong; Wei, Changting; Wang, Lixi Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.22934	text	January 2018
Waterproof Flexible InP@ZnSeS Quantum Dot Light-Emitting Diode Shin, Dong-Wook; Suh, Yh; Lee, S. Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.48493	text	January 2020
Stable Light-Emitting Diodes Using Phase-Pure Ruddlesden-Popper Layered Perovskites Tsai, Hsinhan; Mohite, Aditya; Blancon, Jean-Christophe Proceedings of the 3rd International Conference on Perovskite Thin Film Photovoltaics, Photonics and Optoelectronics https://doi.org/10.29363/nanoge.abxpvperopto.2018.053	conference	February 2018
RGB-Stack Light Emitting Diode Modules with Transparent Glass Circuit Board and Oil Encapsulation Li, Ying-Chang; Chang, Yuan-Hsiao; Singh, Preetpal Materials, Vol. 11, Issue 3 https://doi.org/10.3390/ma11030365	journal	March 2018
Thiocyanate-Treated Perovskite-Nanocrystal-Based Light-Emitting Diodes with Insight in Efficiency Roll-Off Chen, Fang; Boopathi, Karunakara Moorthy; Imran, Muhammad Materials, Vol. 13, Issue 2 https://doi.org/10.3390/ma13020367	journal	January 2020
Silicon Quantum Dot Light Emitting Diode at 620 nm Yamada, Hiroyuki; Shirahata, Naoto Micromachines, Vol. 10, Issue 5 https://doi.org/10.3390/mi10050318	journal	May 2019

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Controlling the influence of Auger recombination on the performance of quantum-dot light-emitting diodes

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