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Article
Chemistry, Multidisciplinary
Yuan Liu et al.
Summary: This study developed a novel CsPbBr3 QD-in-perovskite matrix solid that exhibited high luminescent efficiency and spectral stability. The modulation of perovskite E-g and the passivation of the material were achieved through alloying and specific coordination, leading to enhanced air- and photo-stability.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Review
Chemistry, Multidisciplinary
Haiyang He et al.
Summary: This review highlights recent advances in blue perovskite quantum dots (PQDs), including mixed-halide, quantum-confined all-bromide, metal-doped, and lead-free PQDs, and their applications in PeLEDs. While several excellent PeLEDs based on these PQDs have been demonstrated, there are still many issues to be addressed.
Article
Materials Science, Multidisciplinary
Chenwei Liu et al.
Summary: Quasi-2D perovskite light-emitting diodes (PeLEDs) have unique quantum confinement effect and excellent thermal stability, but the heterogeneous energy distribution leads to severe non-radiative recombination. By coordinating with lead and halides, the ambipolar amino acid 5-aminovaleric acid (5AVA) reconstitutes energy domains and minimizes interfacial defects, resulting in improved performance of PeLEDs.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Physical
Naizhong Jiang et al.
Summary: In this study, an ingenious 2D/3D heterostructure perovskite was constructed by long-chain organic halide salt post-treatment, leading to improved performance in blue perovskite light-emitting diodes (PeLEDs).
Article
Chemistry, Multidisciplinary
Wanqing Cai et al.
Summary: An efficient energy cascade channel is developed by introducing sodium bromide in mixed-halide perovskites, resulting in improved performance of blue perovskite light-emitting diodes.
Review
Engineering, Electrical & Electronic
Azhar Fakharuddin et al.
Summary: Light-emitting diodes based on halide perovskites have achieved significant progress in recent years, with external quantum efficiencies surpassing 23%. However, their practical application is still limited due to factors such as low efficiency in blue-emitting devices, inability to access emission wavelengths above 800 nm, decreased external quantum efficiency at high current density, lack of understanding of the electric field's effect on mobile ions in perovskite materials, and short device lifetimes. This review explores the development of perovskite light-emitting diodes, examining the key challenges in creating efficient and stable devices.
NATURE ELECTRONICS
(2022)
Article
Multidisciplinary Sciences
Yuanzhi Jiang et al.
Summary: This study reports a new method to directly synthesize suitably coupled, monodispersed, ultrasmall perovskite quantum dot films on a substrate. By developing ligand structures with specific head and tail groups, control over the quantum dots' size, monodispersity, and coupling is achieved. The resulting blue PeLEDs exhibit high external quantum efficiency.
Article
Chemistry, Multidisciplinary
Aqiang Liu et al.
Summary: This study demonstrates highly efficient and stable pure-blue perovskite light-emitting diodes (PeLEDs) achieved through an all-solution process. By using difunctional zinc oxide (D-ZnO) nanocrystals, the damaged perovskite surface is repaired and balanced charge injection is achieved to improve the luminous efficiency. The fabricated PeLEDs showed pure-blue emission at a wavelength of 470 nm, with high luminance and external quantum efficiency, as well as a long continuous operation time.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ji Jiang et al.
Summary: Efficient red PeLEDs with high EQE and maximum brightness have been achieved by finely controlling the phase distribution of quasi-2D perovskite and passivation of defects in perovskite films.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jianchao Dong et al.
Summary: Efficient deep-blue PeLEDs have been achieved through a new chemical strategy that controls the interaction between phenylbutylamine and ethylamine with perovskites, resulting in an external quantum efficiency of 4.62% and a stable EL peak at 457 nm.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Multidisciplinary Sciences
Yongjie Liu et al.
Summary: Researchers achieve improved performance and stability in near-infrared light-emitting diodes by introducing different forms of cadmium salts into the FAPbI3 perovskite. This method effectively reduces defect-assisted nonradiative recombination and carrier aggregation at the interface, resulting in a higher external quantum efficiency of the devices.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Peiyuan Pang et al.
Summary: This study reports a method for constructing deep-blue light-emitting diodes (LEDs) and investigates the effects of diamine cations on the crystallization of perovskites. Deep-blue LEDs were successfully constructed using this approach.
ADVANCED OPTICAL MATERIALS
(2022)
Review
Chemistry, Physical
Xiao-Ke Liu et al.
Summary: Perovskite emitters have shown promising optoelectronic properties suitable for light-emitting applications, with rapid progress in the development of PeLEDs reaching external quantum efficiencies of over 20%. The key focus is on improving the performance, stability, and reducing toxicity hazards of PeLEDs.
Article
Multidisciplinary Sciences
Max Karlsson et al.
Summary: Achieving bright and efficient blue emission in metal halide perovskite light-emitting diodes has been challenging, but the authors demonstrate high EQE and spectrally stable blue light-emitting diodes based on mixed halide perovskites, with emission from 490 to 451nm by using a vapour-assisted crystallization technique.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Yuanzhi Jiang et al.
Summary: By reducing the exciton binding energy of materials and employing a polar molecule for treatment, the Auger recombination effect in perovskite materials has been successfully suppressed, leading to efficient PeLEDs devices with outstanding photoluminescence quantum yields. Additionally, a record luminance of 82,480 cd m(-2) was achieved due to the suppressed efficiency roll-off, making it one of the brightest visible PeLEDs to date.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Yang Shen et al.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Chenghao Bi et al.
Summary: The research achieved pure-blue emitting small-sized CsPbBr3 perovskite quantum dots with high quantum efficiency and stability through a novel acid etching-driven ligand exchange strategy. The PeLEDs based on these quantum dots demonstrated significant progress in brightness, pure blue electroluminescence, and durability.
ADVANCED MATERIALS
(2021)
Article
Multidisciplinary Sciences
Dongxin Ma et al.
Summary: By using a fluorinated triphenylphosphine oxide additive to control cation diffusion and passivate surfaces, the efficiency and operating lifetimes of perovskite light-emitting diodes have been improved. Although reduced-dimensional perovskites show promise in increasing stability and photoluminescence quantum yield, challenges such as lower EQEs and inferior color purities remain.
Article
Chemistry, Physical
Yuqiang Liu et al.
Summary: In this study, efficient sky-blue PeLEDs were fabricated using DJ phase perovskites, with organic diamine cations and RbBr incorporated to increase charge utilization, enhancing radiative recombination through synergistic confinement and passivation effects. The photoluminescence quantum yield approached 70%, and the fabricated PeLEDs achieved an external quantum efficiency of 8.5% with an emission peak at 490 nm.
ACS ENERGY LETTERS
(2021)
Review
Optics
Li Zhang et al.
Summary: Quasi-2D perovskites have superior semiconducting properties and outstanding optical characteristics due to their structural characteristics. The inherent quantum-well structure gives them a large exciton binding energy, resulting in high PLQY.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Review
Chemistry, Multidisciplinary
Zhenwei Ren et al.
Summary: This review discusses the progress made in blue perovskite light-emitting diodes (PeLEDs) and describes strategies for optimizing the optical and electrical properties of perovskites. It focuses on key issues such as carrier transport enhancement and trap reduction in perovskite nanocrystals, as well as energy transfer and emission efficiency improvement in quasi-2D perovskites. The review also briefly introduces strategies for efficient 3D mixed-halide perovskite and lead-free perovskite blue LEDs, as well as other methods to boost blue PeLED performances.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yang Yang et al.
Summary: Pure-blue PeLEDs with an emission peak at 475 nm, peak external quantum efficiency of 10.1%, and maximum luminance of 14 000 cd m(-2) were achieved by tailoring the compositions of perovskites, including simultaneous addition of rubidium and chlorine ions and incorporation of phenylethylammonium chloride to form quasi-2D hybrid perovskites. Alloying played a critical role in achieving better morphology with suppressed current leakage and enhanced light outcoupling.
ADVANCED MATERIALS
(2021)
Article
Engineering, Environmental
Yu Tian et al.
Summary: Efficient blue-emission PeLEDs with stable emission have been achieved by a self-assembling strategy, paving the way for constructing efficient, endurable, spectra-stable perovskite emitters for the next-generation display and lighting technologies.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Optics
Maria Vasilopoulou et al.
Summary: 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.
Article
Chemistry, Multidisciplinary
Laura Canil et al.
Summary: Controlling the energy levels in semiconductors is crucial for optoelectronic applications. This study successfully tuned the work function of halide perovskite semiconductors using self-assembled monolayers of small molecules, demonstrating a versatile approach to adjust energy level alignment at the interface for perovskite-based optoelectronics.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Fengjuan Zhang et al.
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Peiyuan Pang et al.
Article
Multidisciplinary Sciences
Zema Chu et al.
NATURE COMMUNICATIONS
(2020)
Review
Materials Science, Multidisciplinary
Hyeokjae Lee et al.
ADVANCED MATERIALS TECHNOLOGIES
(2020)
Article
Multidisciplinary Sciences
Chenhui Wang et al.
NATURE COMMUNICATIONS
(2020)
Article
Materials Science, Multidisciplinary
Siyuan Zeng et al.
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
Article
Multidisciplinary Sciences
Haoran Wang et al.
NATURE COMMUNICATIONS
(2019)
Article
Multidisciplinary Sciences
Zhenchao Li et al.
NATURE COMMUNICATIONS
(2019)
Article
Optics
Yang Liu et al.
Article
Multidisciplinary Sciences
Qi Wang et al.
NATURE COMMUNICATIONS
(2019)
Article
Chemistry, Multidisciplinary
Junnian Chen et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2017)
Review
Chemistry, Multidisciplinary
Gao-Ling Yang et al.
CHINESE CHEMICAL LETTERS
(2016)
Article
Nanoscience & Nanotechnology
Mingjian Yuan et al.
NATURE NANOTECHNOLOGY
(2016)
