Stability improvement of photoluminescent QLEDs based on Mn-doped all-inorganic metal halide perovskite quantum dots with silica shell

Liu, Zilei; Li, Feng; Huang, Gaoxiang; Zhao, Feng; Zhang, Weiwei; Jiang, Guangyu; Cheng, Sunhuizi; Fang, Zixin; Zhu, Quanshui; Huang, Yan

doi:10.1016/j.jallcom.2021.161505

Cited by 17 publications

(9 citation statements)

References 54 publications

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“…56 The Mn 2+ emission in Mn 2+ -doped nanomaterials is related to both a spin-forbidden and an orbital-forbidden transition in the ionic limit, leading to long lifetimes in the range of hundreds of microseconds. 57 The long PL decay lifetime in the order of milliseconds in our case is consistent with that of the previously reported Mn 2+ -doped LHP NCs, 21,26,35,58,59 which further reveals that the PL emissions are a direct consequence of the spin-forbidden 4 T 1 → 6 A 1 transition of dopants. 60…”

Section: Resultssupporting

confidence: 92%

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Hexamethyldisilazane-assisted Mn²⁺ doping of perovskite nanocrystals under ambient conditions

Tan

et al. 2022

CrystEngComm

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Section: Resultssupporting

confidence: 92%

“…12–22 Among the various dopants, Mn 2+ ions are of great interest and have been extensively explored. 23–26 The substitution of Pb 2+ with Mn 2+ not only reduces the usage of a toxic Pb amount 27,28 but also enhances the structural stability and PLQY. 23,29–32…”

Section: Introductionmentioning

confidence: 99%

Hexamethyldisilazane-assisted Mn²⁺ doping of perovskite nanocrystals under ambient conditions

Tan

et al. 2022

CrystEngComm

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“…[134,135] In addition, perovskite QDs have outstanding ion migration problems due to their ionic structure. [129,169] Therefore, the different electrical properties of the different QDs need to be elaborately analyzed and specially tailored on a case-by-case basis when designing the device.…”

Section: Device Structure and Mechanismmentioning

confidence: 99%

Flexible Quantum Dot Light‐Emitting Device for Emerging Multifunctional and Smart Applications

et al. 2023

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Quantum dot light‐emitting diodes (QLEDs), owing to their exceptional performances in device efficiency, color purity/tunability in the visible region and solution‐processing ability on various substrates, become a potential candidate for flexible and ultrathin electroluminescent (EL) lighting and display. Moreover, beyond the lighting and display, flexible QLEDs are enabled with endless possibilities in the era of the internet of things and artificial intelligence by acting as input/output ports in wearable integrated systems. Challenges remain in the development of flexible QLEDs with the goals for high performance, excellent flexibility/even stretchability, and emerging applications. In this paper, the recent developments of QLEDs including quantum dot materials, working mechanism, flexible/stretchable strategies and patterning strategies, and highlight its emerging multifunctional integrations and smart applications covering wearable optical medical devices, pressure‐sensing EL devices, and neural smart EL devices, are reviewed. The remaining challenges are also summarized and an outlook on the future development of flexible QLEDs made. The review is expected to offer a systematic understanding and valuable inspiration for flexible QLEDs to simultaneously satisfy optoelectronic and flexible properties for emerging applications.

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“…are the cation sites while X (normally halides) is the anion, as shown in Figure 3. Fortunately, the defect tolerance of the lead halide perovskite is very high [35][36][37][38], so perovskite CQDs are easier to dope by the synthetic route. Both isovalent and heterovalent dopants have been accomplished in the perovskite CQD system by adding additional precursors or reactants during the hot-injection process.…”

Section: Doping Via Synthesismentioning

confidence: 99%

Doping Colloidal Quantum Dot Materials and Devices for Photovoltaics

Meng

Wang

2022

Energies

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Colloidal semiconductor nanocrystals have generated tremendous interest because of their solution processability and robust tunability. Among such nanocrystals, the colloidal quantum dot (CQD) draws the most attention for its well-known quantum size effects. In the last decade, applications of CQDs have been booming in electronics and optoelectronics, especially in photovoltaics. Electronically doped semiconductors are critical in the fabrication of solar cells, because carefully designed band structures are able to promote efficient charge extraction. Unlike conventional semiconductors, diffusion and ion implantation technologies are not suitable for doping CQDs. Therefore, researchers have creatively developed alternative doping methods for CQD materials and devices. In order to provide a state-of-the-art summary and comprehensive understanding to this research community, we focused on various doping techniques and their applications for photovoltaics and demystify them from different perspectives. By analyzing two classes of CQDs, lead chalcogenide CQDs and perovskite CQDs, we compared different working scenarios of each technique, summarized the development in this field, and raised our own future perspectives.

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Stability improvement of photoluminescent QLEDs based on Mn-doped all-inorganic metal halide perovskite quantum dots with silica shell

Cited by 17 publications

References 54 publications

Hexamethyldisilazane-assisted Mn²⁺ doping of perovskite nanocrystals under ambient conditions

Hexamethyldisilazane-assisted Mn²⁺ doping of perovskite nanocrystals under ambient conditions

Flexible Quantum Dot Light‐Emitting Device for Emerging Multifunctional and Smart Applications

Doping Colloidal Quantum Dot Materials and Devices for Photovoltaics

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Stability improvement of photoluminescent QLEDs based on Mn-doped all-inorganic metal halide perovskite quantum dots with silica shell

Cited by 17 publications

References 54 publications

Hexamethyldisilazane-assisted Mn2+ doping of perovskite nanocrystals under ambient conditions

Hexamethyldisilazane-assisted Mn2+ doping of perovskite nanocrystals under ambient conditions

Flexible Quantum Dot Light‐Emitting Device for Emerging Multifunctional and Smart Applications

Doping Colloidal Quantum Dot Materials and Devices for Photovoltaics

Contact Info

Product

Resources

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Hexamethyldisilazane-assisted Mn²⁺ doping of perovskite nanocrystals under ambient conditions

Hexamethyldisilazane-assisted Mn²⁺ doping of perovskite nanocrystals under ambient conditions