• Yusoff, Abd. Rashid Bin Mohd
• Nazeeruddin, Mohammad Khaja
• Sargent, Edward H.
• Gao, Feng
• Vasilopoulou, Maria
• Bolink, Henk J.
• Georgiadou, Dimitra
• Arquer, F. Pelayo García De
• Fakharuddin, Azhar
• Kim, Hobeom

Abstract

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.

Topics

• perovskite
• semiconductor
• quantum dot