Dye-based nanoarchitectonics for the effective bandgap and stability of blue phosphorescent organic light-emitting diodes

Zhao, Hailiang; Li, Jiatong; Sun, Weidong; He, Liang; Li, Xin; Jia, Xueyi; Qin, Dashan

doi:10.1007/s00339-023-07225-5

Appl. Phys. A

2023

DOI: 10.1007/s00339-023-07225-5

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Dye-based nanoarchitectonics for the effective bandgap and stability of blue phosphorescent organic light-emitting diodes

Hailiang Zhao,

Jiatong Li,

Weidong Sun

et al.

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2024

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Cited by 5 publications

References 34 publications

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Modeling the Electrical Stabilities of Organic Light‐Emitting Diodes

Qin,

2024

Physica Status Solidi (a)

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The ratio (R) of the molecular density of emissive layer to the carrier density in exciton formation zone has been provided to weigh the electrical stability of organic light‐emitting diode and simulated via the general mode of carrier device lifetimes. With current density increasing from 1 to 500 mA cm−2, the molecular density of emissive layer enabling the largest R, that is, the best electrical stability of device, gradually increases from 7.5 × 1019 to 1.5 × 1021 cm−3. At a given current density, R increases with the average bandgap of emissive layer increasing. There is a power law dependence of R on current density. For host–guest emissive layer, the electrical stability of device decreases with guest concentration increasing, mostly because the average bandgap of the host–guest emissive layer decreases. The current research provides some deep insights into developing the emissive layers of organic light‐emitting diodes toward high luminance applications.

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Modeling the Electrical Stabilities of Organic Light‐Emitting Diodes

Qin,

2024

Physica Status Solidi (a)

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Modeling the carrier density in the exciton formation zone of organic light-emitting diode under high current injection

Qin

2024

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2D Materials Nanoarchitectonics for 3D Structures/Functions

Ariga

2024

Materials

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It has become clear that superior material functions are derived from precisely controlled nanostructures. This has been greatly accelerated by the development of nanotechnology. The next step is to assemble materials with knowledge of their nano-level structures. This task is assigned to the post-nanotechnology concept of nanoarchitectonics. However, nanoarchitectonics, which creates intricate three-dimensional functional structures, is not always easy. Two-dimensional nanoarchitectonics based on reactions and arrangements at the surface may be an easier target to tackle. A better methodology would be to define a two-dimensional structure and then develop it into a three-dimensional structure and function. According to these backgrounds, this review paper is organized as follows. The introduction is followed by a summary of the three issues; (i) 2D to 3D dynamic structure control: liquid crystal commanded by the surface, (ii) 2D to 3D rational construction: a metal–organic framework (MOF) and a covalent organic framework (COF); (iii) 2D to 3D functional amplification: cells regulated by the surface. In addition, this review summarizes the important aspects of the ultimate three-dimensional nanoarchitectonics as a perspective. The goal of this paper is to establish an integrated concept of functional material creation by reconsidering various reported cases from the viewpoint of nanoarchitectonics, where nanoarchitectonics can be regarded as a method for everything in materials science.

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Dye-based nanoarchitectonics for the effective bandgap and stability of blue phosphorescent organic light-emitting diodes

Cited by 5 publications

References 34 publications

Modeling the Electrical Stabilities of Organic Light‐Emitting Diodes

Modeling the Electrical Stabilities of Organic Light‐Emitting Diodes

Modeling the carrier density in the exciton formation zone of organic light-emitting diode under high current injection

2D Materials Nanoarchitectonics for 3D Structures/Functions

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