期刊
NATURE PHOTONICS
卷 15, 期 9, 页码 656-669出版社
NATURE PORTFOLIO
DOI: 10.1038/s41566-021-00855-2
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Near-infrared light-emitting diodes fabricated by solution-processed means using organic semiconductors, halide perovskites, and colloidal quantum dots have become a promising technological platform for various applications including biomedical, night vision, surveillance, and optical communications. Despite achieving high external quantum efficiencies exceeding 20%, challenges remain in achieving high radiance, reducing efficiency roll-off, and extending operating lifetime. This review summarizes recent advances in emissive materials synthetic methods and device key attributes contributing 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. 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.
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