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Title: Large-area and bright pulsed electroluminescence in monolayer semiconductors

Journal Article · · Nature Communications
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [2]; ORCiD logo [1]
  1. Univ. of California, Berkeley, CA (United States). Electrical Engineering and Computer Sciences; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
  2. Univ. of California, Berkeley, CA (United States). Electrical Engineering and Computer Sciences
  3. King Abdullah Univ. of Science & Technology (KAUST), Thuwal (Saudi Arabia). Computer, Electrical and Mathematical Sciences and Engineering Division
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division

Transition-metal dichalcogenide monolayers have naturally terminated surfaces and can exhibit a near-unity photoluminescence quantum yield in the presence of suitable defect passivation. To date, steady-state monolayer light-emitting devices suffer from Schottky contacts or require complex heterostructures. Here, we demonstrate a transient-mode electroluminescent device based on transition-metal dichalcogenide monolayers (MoS2, WS2, MoSe2, and WSe2) to overcome these problems. Electroluminescence from this dopant-free two-terminal device is obtained by applying an AC voltage between the gate and the semiconductor. Notably, the electroluminescence intensity is weakly dependent on the Schottky barrier height or polarity of the contact. We fabricate a monolayer seven-segment display and achieve the first transparent and bright millimeter-scale light-emitting monolayer semiconductor device.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Science Foundation (NSF)
Grant/Contract Number:
AC02-05CH11231; 1623038
OSTI ID:
1465474
Journal Information:
Nature Communications, Vol. 9, Issue 1; Related Information: © 2018 The Author(s).; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 124 works
Citation information provided by
Web of Science

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Cited By (22)

Recent Advances in Flexible Inorganic Light Emitting Diodes: From Materials Design to Integrated Optoelectronic Platforms journal September 2018
Physics of excitons and their transport in two dimensional transition metal dichalcogenide semiconductors journal January 2019
Centimeter‐Scale and Visible Wavelength Monolayer Light‐Emitting Devices journal December 2019
Synthetic WSe 2 monolayers with high photoluminescence quantum yield journal January 2019
Rapid-throughput solution-based production of wafer-scale 2D MoS 2 journal April 2019
Electroluminescence from multi-particle exciton complexes in transition metal dichalcogenide semiconductors text January 2018
Electroluminescent Devices Based on 2D Semiconducting Transition Metal Dichalcogenides journal August 2018
Laterally confined photonic crystal surface emitting laser incorporating monolayer tungsten disulfide journal April 2019
2D optical materials and the implications for photonics journal August 2019
Optoelectronic and photonic devices based on transition metal dichalcogenides journal January 2020
Shape-controlled single-crystal growth of InP at low temperatures down to 220 °C journal December 2019
Molecular Beam Epitaxy Scalable Growth of Wafer‐Scale Continuous Semiconducting Monolayer MoTe 2 on Inert Amorphous Dielectrics journal June 2019
WS 2 monolayer-based light-emitting devices in a vertical p–n architecture journal January 2019
Narrow photoluminescence and Raman peaks of epitaxial MoS 2 on graphene/Ir(1 1 1) journal November 2018
Strong optical response and light emission from a monolayer molecular crystal journal December 2019
Scanning Probe Lithography Patterning of Monolayer Semiconductors and Application in Quantifying Edge Recombination journal September 2019
Nonlinear optical effects in a three-nanolayer metal sandwich assembly journal April 2018
Exciton physics and device application of two-dimensional transition metal dichalcogenide semiconductors journal September 2018
Advances in Alternating Current Electroluminescent Devices journal January 2019
Reversible crystalline-to-amorphous phase transformation in monolayer MoS 2 under grazing ion irradiation journal January 2020
Electroluminescence from multi-particle exciton complexes in transition metal dichalcogenide semiconductors journal April 2019
Bright electroluminescence in ambient conditions from WSe 2 p-n diodes using pulsed injection journal July 2019

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