scholarly journals Exploring a lead-free organic–inorganic semiconducting hybrid with above-room-temperature dielectric phase transition

RSC Advances ◽  
2020 ◽  
Vol 10 (30) ◽  
pp. 17492-17496
Author(s):  
Yuyin Wang ◽  
Shiguo Han ◽  
Xitao Liu ◽  
Zhenyue Wu ◽  
Zhihua Sun ◽  
...  
Keyword(s):  
Phase Transition ◽  
Room Temperature ◽  
Light Emitting Diodes ◽  
Lead Free ◽  
Inorganic Hybrid ◽  
Light Emitting ◽  
Dielectric Phase ◽  
Halide Perovskites ◽  
Optoelectronic Applications ◽  
Lead Halide

Recently, organic–inorganic hybrid lead halide perovskites have attracted great attention for optoelectronic applications, such as light-emitting diodes, photovoltaics and optoelectronics.

Efficient organic manganese (II) bromide green-light-emitting diodes enabled by manipulating hole and electron transport layer

2021 ◽  
Author(s):  
Hyunsik Im ◽  
Atanu Jana ◽  
Vijaya Gopalan Sree ◽  
QIANKAI BA ◽  
Seong Chan Cho ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Green Light ◽  
Transport Layer ◽  
Lead Free ◽  
Electron Transport Layer ◽  
Flat Panel Displays ◽  
Flat Panel ◽  
Inorganic Hybrid ◽  
Light Emitting ◽  
Light Emitting Devices

Lead-free, non-toxic transition metal-based phosphorescent organic–inorganic hybrid (OIH) compounds are promising for next-generation flat-panel displays and solid-state light-emitting devices. In the present study, we fabricate highly efficient phosphorescent green-light-emitting diodes...

Tunable ultra-uniform Cs4PbBr6 perovskites with efficient photoluminescence and excellent stability for high-performance white light-emitting diodes

2021 ◽  
Author(s):  
Yao Li ◽  
Kaimin Du ◽  
Manli Zhang ◽  
Xuan Gao ◽  
Yu Lu ◽  
...  
Keyword(s):  
White Light ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Metal Halide ◽  
Light Emitting ◽  
New Class ◽  
Halide Perovskites ◽  
White Light Emitting Diodes ◽  
Lead Halide ◽  
Excellent Stability

Metal halide perovskites are a new class of promising materials in optoelectronic applications. As optoelectronic properties of the lead halide perovskites are determined largely by their morphology, the morphology of...

scholarly journals Highly stable hybrid perovskite light-emitting diodes based on Dion-Jacobson structure

2019 ◽  
Vol 5 (8) ◽  
pp. eaaw8072 ◽  
Author(s):  
Yuequn Shang ◽  
Yuan Liao ◽  
Qi Wei ◽  
Ziyu Wang ◽  
Bo Xiang ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
First Principles Calculations ◽  
Bridging Ligands ◽  
Inorganic Hybrid ◽  
Light Emitting ◽  
Hybrid Perovskite ◽  
Halide Perovskites ◽  
Stable Hybrid ◽  
Poor Stability

Organic-inorganic hybrid halide perovskites are emerging as promising materials for next-generation light-emitting diodes (LEDs). However, the poor stability of these materials has been the main obstacle challenging their application. Here, we performed first-principles calculations, revealing that the molecule dissociation energy of Dion-Jacobson (DJ) structure using 1,4-bis(aminomethyl)benzene molecules as bridging ligands is two times higher than the typical Ruddlesden-Popper (RP) structure based on phenylethylammonium ligands. Accordingly, LEDs based on the DJ structure show a half-lifetime over 100 hours, which is almost two orders of magnitude longer compared with those based on RP structural quasi–two-dimensional perovskite. To the best of our knowledge, this is the longest lifetime reported for all organic-inorganic hybrid perovskites operating at the current density, giving the highest external quantum efficiency (EQE) value. In situ tracking of the film composition in operation indicates that the DJ structure was maintained well after continuous operation under an electric field.

scholarly journals Lead-free cesium tin halide nanocrystals for light-emitting diodes and color down conversion

RSC Advances ◽  
2020 ◽  
Vol 10 (61) ◽  
pp. 37161-37167 ◽  
Author(s):  
K. P. O. Mahesh ◽  
Che-Yu Chang ◽  
Wei-Li Hong ◽  
Tzu-Hsiang Wen ◽  
Pei-Hsuan Lo ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Narrow Band ◽  
Lead Free ◽  
Carrier Diffusion ◽  
Light Emitting ◽  
Band Emission ◽  
Wavelength Tunability ◽  
Halide Perovskites ◽  
Down Conversion

Organometal halide perovskites are attracting a great deal of attention because of their long carrier diffusion lengths, wide wavelength tunability, and narrow-band emission.

Successive near-room-temperature dielectric phase transitions in a lead-free hybrid perovskite-like compound

2019 ◽  
Vol 6 (1) ◽  
pp. 233-237 ◽  
Author(s):  
Jing Zhang ◽  
Shiguo Han ◽  
Xitao Liu ◽  
Chengmin Ji ◽  
Kewen Tao ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Room Temperature ◽  
Lead Free ◽  
Hybrid Compound ◽  
Inorganic Hybrid ◽  
Dielectric Phase ◽  
Hybrid Perovskite ◽  
Successive Phase

We have reported a lead-free organic–inorganic hybrid compound, (hexamethyleneimine)2BiBr5 (1), which undergoes three successive phase transitions in the vicinity of room temperature.

Lead-free halide perovskites: review of structure-property relationship, and applications in light emitting devices and radiation detectors

2021 ◽  
Author(s):  
Yuting Gao ◽  
Yufeng Pan ◽  
Feng Zhou ◽  
Guangda Niu ◽  
Chunjie Yan
Keyword(s):  
Radiation Detectors ◽  
Lead Free ◽  
Structure Property ◽  
Excellent Performance ◽  
Widespread Application ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Structure Property Relationship ◽  
Halide Perovskites ◽  
Lead Halide

Lead halide perovskites have demonstrated excellent performance for light emitting diodes and detectors. However, the toxicity of lead (Pb) in the devices severely impedes their widespread application and commercialization. The...

Luminescence enhancement of lead halide perovskite light-emitting diodes with plasmonic metal nanostructures

Nanoscale ◽  
2021 ◽  
Author(s):  
Mingfei Zheng ◽  
Guojia Fang
Keyword(s):  
Light Emitting Diodes ◽  
Metal Nanostructures ◽  
Luminescent Materials ◽  
Luminescence Enhancement ◽  
Light Emitting ◽  
Practical Applications ◽  
Light Emitter ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Lead Halide

Metal halide perovskites, as a newly emerging light-emitter, have been attracting considerable attention on luminescent materials and devices, due to their superior optoelectronic properties and potential practical applications. Recently, perovskite...

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