Bromination of hydrocarbons with CBr4, initiated by light-emitting diode irradiation

The bromination of hydrocarbons with CBr4 as a bromine source, induced by light-emitting diode (LED) irradiation, has been developed. Monobromides were synthesized with high efficiency without the need for any additives, catalysts, heating, or inert conditions. Action and absorption spectra suggest that CBr4 absorbs light to give active species for the bromination. The generation of CHBr3 was confirmed by NMR spectroscopy and GC–MS spectrometry analysis, indicating that the present bromination involves the homolytic cleavage of a C–Br bond in CBr4 followed by radical abstraction of a hydrogen atom from a hydrocarbon.

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Solution-Processable, High-Molecule-Based Trifluoromethyl-Iridium Complex for Extraordinarily High Efficiency Blue-Green Organic Light-Emitting Diode

Chemistry of Materials ◽

10.1021/cm900387a ◽

2009 ◽

Vol 21 (13) ◽

pp. 2565-2567 ◽

Cited By ~ 62

Author(s):

Jwo-Huei Jou ◽

Mao-Feng Hsu ◽

Wei-Ben Wang ◽

Chih-Lung Chin ◽

Yu-Chiao Chung ◽

...

Keyword(s):

High Efficiency ◽

Light Emitting Diode ◽

Iridium Complex ◽

Light Emitting ◽

Organic Light Emitting Diode ◽

Organic Light ◽

Solution Processable

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High‐Efficiency Top‐Emitting Green Perovskite Light Emitting Diode with Quasi Lambertian Emission

Advanced Optical Materials ◽

10.1002/adom.202101137 ◽

2021 ◽

pp. 2101137

Author(s):

Lei Cai ◽

Jungui Zhou ◽

Guilin Bai ◽

Jiaqing Zang ◽

Abdelhamid El‐Shaer ◽

...

Keyword(s):

High Efficiency ◽

Light Emitting Diode ◽

Light Emitting

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High efficiency AlGaInN-based light emitting diode in the 360–380 nm wavelength range

phys stat sol (a) ◽

10.1002/pssa.200303478 ◽

2003 ◽

Vol 200 (1) ◽

pp. 102-105 ◽

Cited By ~ 3

Author(s):

Hisao Sato ◽

Hong-Xing Wang ◽

Daisuke Sato ◽

Ryohei Takaki ◽

Naoki Wada ◽

...

Keyword(s):

Wavelength Range ◽

High Efficiency ◽

Light Emitting Diode ◽

Light Emitting

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High-Efficiency Monolayer Molybdenum Ditelluride Light-Emitting Diode and Photodetector

ACS Applied Materials & Interfaces ◽

10.1021/acsami.8b14076 ◽

2018 ◽

Vol 10 (50) ◽

pp. 43291-43298 ◽

Cited By ~ 21

Author(s):

Yi Zhu ◽

Ziyuan Li ◽

Linglong Zhang ◽

Bowen Wang ◽

Zhenqing Luo ◽

...

Keyword(s):

High Efficiency ◽

Light Emitting Diode ◽

Light Emitting

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Use of Hybrid PEDOT:PSS/Metal Sulfide Quantum Dots for a Hole Injection Layer in Highly Efficient Green Phosphorescent Organic Light-Emitting Diodes

Frontiers in Chemistry ◽

10.3389/fchem.2021.657557 ◽

2021 ◽

Vol 9 ◽

Author(s):

Wenqing Zhu ◽

Kuangyu Ding ◽

Chen Yi ◽

Ruilin Chen ◽

Bin Wei ◽

...

Keyword(s):

Quantum Dots ◽

High Efficiency ◽

Light Emitting Diode ◽

Metal Sulfide ◽

Molybdenum Sulfide ◽

Hole Injection ◽

Light Emitting ◽

Hole Injection Layer ◽

Highly Efficient ◽

Organic Light

In this study, we have synthesized the molybdenum sulfide quantum dots (MoS2 QDs) and zinc sulfide quantum dots (ZnS QDs) and demonstrated a highly efficient green phosphorescent organic light-emitting diode (OLED) with hybrid poly (3,4-ethylenedioxythiophene)/poly (styrenesulfonate) (PEDOT:PSS)/QDs hole injection layer (HIL). The electroluminescent properties of PEDOT:PSS and hybrid HIL based devices were explored. An optimized OLED based on the PEDOT:PSS/MoS2 QDs HIL exhibited maximum current efficiency (CE) of 72.7 cd A−1, which shows a 28.2% enhancement as compared to counterpart with single PEDOT:PSS HIL. The higher device performance of OLED with hybrid HIL can be attributed to the enhanced hole injection capacity and balanced charge carrier transportation in the OLED devices. The above analysis illustrates an alternative way to fabricate the high efficiency OLEDs with sulfide quantum dots as a HIL.

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