Perovskite light-emitting diodes | Nature Electronics
2022年4月21日 · Perovskite LEDs (PeLEDs), in particular, have achieved considerable progress in recent years, reaching external quantum efficiencies (EQEs) of more than 23% for green 5 and red 6 and more than...
Perovskite light-emitting diodes with external quantum efficiency ...
2018年10月10日 · Here we describe visible-light-emitting perovskite LEDs that surpass the quantum efficiency milestone of 20 per cent. This achievement stems from a new strategy for managing the compositional...
Bright and stable perovskite light-emitting diodes in the near …
2023年3月15日 · Here, we demonstrate perovskite LEDs with exceptional performance at high brightness, achieved by the introduction of a multifunctional molecule that simultaneously removes non-radiative regions...
Efficient pure-red perovskite light-emitting diodes with strong ...
2024年5月3日 · Perovskite light-emitting diodes (PeLEDs) have emerged as a cutting-edge area of research, holding immense potential in the field of displays due to their exceptional properties such as high color purity luminescence and tunable emission wavelengths (1 – 6).
Brightening deep-blue perovskite light-emitting diodes: A
2024年5月17日 · We achieved one of the highest reported values of Lmax for deep-blue PeLEDs that satisfy the Rec. 2020 color standard. In particular, strong binding passivation by sulfonate ligands efficiently prevents halide migration under bias in mixed-halide perovskite films containing chloride and bromide.
Ultralow voltage–driven efficient and stable perovskite light …
2024年9月6日 · Achieving high brightness and quantum efficiency at low driving voltages, thus effectively reducing heat accumulation, is key to enhancing the operational lifetime of PeLEDs. Here, we present a breakthrough, attaining a record-low driving voltage while maintaining high brightness and efficiency.
Opportunities and challenges in perovskite LED …
With their excellent performance, perovskite LEDs (PeLEDs) will become a strong competitor of inorganic LEDs and organic LEDs in the future. In this perspective, we first analyze the cost of perovskite in terms of materials, manufacturing and overhead.
Ultrathin Light-Emitting Diodes with External ... - ACS Publications
2023年1月10日 · Perovskite light-emitting diodes (LEDs) are attracting great attention due to their efficient and narrow emission. Quasi-two-dimensional perovskites with Ruddlesden-Popper-type layered structures can enlarge exciton binding energy and confine charge carriers and are considered good candidate materials for efficient LEDs.
Exciton Dynamics in Layered Halide Perovskite Light-Emitting …
The unique photophysical properties of quasi-2D perovskite films, such as high exciton binding energy and cascade energy transfer, make them attractive candidates for LED emitters. However, with increasing current density, quasi-2D PeLEDs suffer from significant EQE roll-off, even more severely than their 3D counterparts.
Stability of Perovskite Solar Cells Tripled with Protective Coating
1 天前 · “This work addresses one of the critical barriers to widespread adoption of perovskite solar cells — stability under real-world conditions,” said Northwestern’s Mercouri Kanatzidis, who co-led the study. “By chemically reinforcing the protective layers, we’ve significantly advanced the durability of these cells without compromising ...
- 某些结果已被删除一些您可能无法访问的结果已被隐去。显示无法访问的结果