Advances in solution-processed near-infrared light-emitting diodes

Near-infrared light-emitting diodes based on solution-processed semiconductors, such as organics, halide perovskites and colloidal quantum dots, have emerged as a viable technological platform for biomedical applications, night vision, surveillance and optical communications. The recently gained inc...

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Bibliographic Details
Published in:Nature photonics 2021-09, Vol.15 (9), p.656-669
Main Authors: Vasilopoulou, Maria, Fakharuddin, Azhar, García de Arquer, F. Pelayo, Georgiadou, Dimitra G., Kim, Hobeom, Mohd Yusoff, Abd. Rashid bin, Gao, Feng, Nazeeruddin, Mohammad Khaja, Bolink, Henk J., Sargent, Edward H.
Format: Article
Language:English
Subjects:
639/301/1019/1020
639/624/1020/1091
Applied and Technical Physics
Biomedical materials
Colloiding
Emitters
I.R. radiation
Light emitting diodes
Near infrared radiation
Night vision
Optical communication
Organic semiconductors
Perovskites
Physics
Physics and Astronomy
Quantum dots
Quantum Physics
Review Article
Semiconductors
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Summary:Near-infrared light-emitting diodes based on solution-processed semiconductors, such as organics, halide perovskites and colloidal quantum dots, have emerged as a viable technological platform for biomedical applications, night vision, surveillance and optical communications. The recently gained increased understanding of the relationship between materials structure and photophysical properties has enabled the design of efficient emitters leading to devices with external quantum efficiencies exceeding 20%. Despite considerable strides made, challenges remain in achieving high radiance, reducing efficiency roll-off and extending operating lifetime. This Review summarizes recent advances on emissive materials synthetic methods and device key attributes that collectively contribute to improved performance of the fabricated light-emitting devices. A summary of recent advances in the near-infrared light-emitting diodes that are fabricated by solution-processed means, with coverage of devices based on organic semiconductors, halide perovskites and colloidal quantum dots.
ISSN:1749-4885
1749-4893
1749-4893
DOI:10.1038/s41566-021-00855-2