Highly efficient self-trapped exciton emission in a one-dimensional face-shared hybrid lead bromide

2021 ◽  
Author(s):  
Zhikai Qi ◽  
Yali Chen ◽  
Yao Guo ◽  
Xuelian Yang ◽  
Huizhi Gao ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Light Emission ◽  
Yellow Light ◽  
Exciton Emission ◽  
One Dimensional ◽  
Highly Efficient ◽  
Lead Bromide ◽  
Dimensional Face

A new one-dimensional face-shared hybrid lead bromide exhibits highly efficient broadband yellow-light emission with a quantum yield of 16.8%.

Lead chlorine cluster assembled one-dimensional halide with highly efficient broadband white-light emission

2021 ◽  
Author(s):  
Jian-Qiang Zhao ◽  
Chen Sun ◽  
Meng Yue ◽  
Yan Meng ◽  
Xian-Mei Zhao ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
One Dimensional ◽  
Highly Efficient

One new lead chlorine cluster assembled 1D non-perovskite halide of [DTHPE]2Pb3Cl10 was synthesized which displays strong broadband bluish white light emission with a high photoluminescence quantum efficiency of 19.45% exceeding those of previously reported 2D lead perovskites.

One-Dimensional Lead-Free Halide with Near-Unity Greenish-Yellow Light Emission

2020 ◽  
Vol 32 (15) ◽  
pp. 6525-6531 ◽  
Author(s):  
Sai Li ◽  
Jun Xu ◽  
Zhigang Li ◽  
Zhichao Zeng ◽  
Wei Li ◽  
...  
Keyword(s):  
Light Emission ◽  
Lead Free ◽  
Yellow Light ◽  
One Dimensional ◽  
Greenish Yellow

Tetrameric cluster assembled one-dimensional hybrid lead halides with broadband light emission

CrystEngComm ◽  
2020 ◽  
Vol 22 (47) ◽  
pp. 8208-8213
Author(s):  
Wei-Feng Zhang ◽  
Jian-Qiang Zhao ◽  
Xing-Yu Sun ◽  
Yue-Yu Ma ◽  
Hong-Mei Pan ◽  
...  
Keyword(s):  
Crystal Lattice ◽  
Potential Application ◽  
Light Emission ◽  
The Self ◽  
Yellow Light ◽  
One Dimensional ◽  
Halide Perovskites ◽  
Lead Halide

A series of new types of 1D lead halide perovskites have been synthesized based on [Pb4X16] tetrameric clusters. The 1D crystal lattice exhibits broadband yellow light emission arising from the self-trapped excitons with potential application in WLEDs.

A zero-dimensional hybrid lead perovskite with highly efficient blue-violet light emission

2020 ◽  
Vol 8 (34) ◽  
pp. 11890-11895 ◽  
Author(s):  
Chen Sun ◽  
Kuan Jiang ◽  
Meng-Fei Han ◽  
Mei-Jun Liu ◽  
Xi-Kai Lian ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Light Emission ◽  
Violet Light ◽  
Highly Efficient ◽  
Photoluminescence Quantum Yield

By using a structural slicing strategy toward 3D CsPbCl3, we successfully constructed the first 0D perovskite displaying the highest-energy blue-violet light emission (392 nm) with improved photoluminescence quantum yield ranging from <5% to 21.3%.

Hollow Metal Halide Perovskite Nanocrystals with Efficient Blue Emissions

2019 ◽  
Author(s):  
Michael Worku ◽  
Yu Tian ◽  
Chenkun Zhou ◽  
Haoran Lin ◽  
Maya Chaaban ◽  
...  
Keyword(s):  
Precursor Solution ◽  
Visible Spectral Region ◽  
Metal Halide ◽  
Synthetic Control ◽  
Perovskite Nanocrystals ◽  
Highly Efficient ◽  
Quantum Confinement Effects ◽  
Metal Halide Perovskite ◽  
Lead Bromide ◽  
Halide Perovskite

Metal halide perovskite nanocrystals (NCs) have emerged as a new generation light emitting materials with narrow emissions and high photoluminescence quantum efficiencies (PLQEs). Various types of perovskite NCs, e.g. platelets, wires, and cubes, have been discovered to exhibit tunable emissions across the whole visible spectral region. Despite remarkable advances in the field of metal halide perovskite NCs over the last few years, many nanostructures in inorganic NCs have yet been realized in metal halide perovskites and producing highly efficient blue emitting perovskite NCs remains challenging and of great interest. Here we report for the first time the discovery of highly efficient blue emitting cesium lead bromide perovskite (CsPbBr3) NCs with hollow structures. By facile solution processing of cesium lead bromide perovskite precursor solution containing additional ethylenediammonium bromide and sodium bromide, in-situ formation of hollow CsPbBr3 NCs with controlled particle and pore sizes is realized. Synthetic control of hollow nanostructures with quantum confinement effects results in color tuning of CsPbBr3 NCs from green to blue with high PLQEs of up to 81 %.<br><div><br></div>

scholarly journals Air stable and highly efficient Bi3+-doped Cs2SnCl6 for blue light-emitting diodes

RSC Advances ◽  
2021 ◽  
Vol 11 (42) ◽  
pp. 26415-26420
Author(s):  
Yue Yao ◽  
Si-Wei Zhang ◽  
Zijian Liu ◽  
Chun-Yun Wang ◽  
Ping Liu ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Blue Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Color Coordinates ◽  
Blue Led ◽  
Highly Efficient ◽  
Photoluminescence Quantum Yield ◽  
Long Life

A Bi3+-doped Cs2SnCl6 exhibits photoluminescence at around 456 nm and a photoluminescence quantum yield of 31%. The blue LED based on the Bi3+-doped Cs2SnCl6 phosphor exhibits a long life of 120 hours and a CIE color coordinates of (0.14, 0.11).

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