Effects of fused rings linked to the 2,5-position of pyrrole derivatives with near-infrared emission on their aggregation-enhanced emission properties

2019 ◽  
Vol 3 (10) ◽  
pp. 2072-2076 ◽  
Author(s):  
Fei Ren ◽  
Jianbing Shi ◽  
Bin Tong ◽  
Zhengxu Cai ◽  
Yuping Dong

Pyrrole derivatives with NIR emission and AEE properties were synthesized through introducing different fused rings and a furanylidene group.

2015 ◽  
Vol 8 (4) ◽  
pp. 603-607
Author(s):  
段佩华 DUAN Pei-hua ◽  
张继森 ZHANG Ji-sen ◽  
张立国 ZHANG Li-guo ◽  
任建岳 REN Jian-yue ◽  
骆永石 LUO Yong-shi ◽  
...  

Author(s):  
Xuehua Chen ◽  
Enhai Song ◽  
Yayun Zhou ◽  
Fanquan He ◽  
Jiqiao Yang ◽  
...  

The discovery of high efficiency broadband Near-infrared (NIR) emission phosphor for phosphor-converted light-emitting diodes (NIR-pc-LEDs) is of importance for optoelectronic device and the emerging applications. Herein, a highly efficient broadband...


2018 ◽  
Vol 4 (4) ◽  
pp. 44 ◽  
Author(s):  
Gang Huang ◽  
Guillaume Calvez ◽  
Yan Suffren ◽  
Carole Daiguebonne ◽  
Stéphane Freslon ◽  
...  

Up to now, even if murexide-based complexometric studies are performed with all 3d or 4f ions, the crystal structures of the light-lanthanide derivatives of the lanthanide-murexide series are unknown. In this work, we report the crystal structure of the NdIII derivative named NdMurex. Contrary to all known complexes of the 3d or 4f series, a dimeric compound was obtained. As for its already reported DyIII and YbIII parents, the NdIII complex responsible for the color-change behaves as a single-molecule magnet (SMM). This behavior was observed on both the crystalline (NdMurex: Ueff = 6.20(0.80) K, 4.31 cm−1; τ0 = 2.20(0.92) × 10−5 s, Hdc = 1200 Oe) and anhydrous form (NdMurexAnhy: Ueff = 6.25(0.90) K, 4.34 cm−1; τ0 = 4.85(0.40) × 10−5 s, Hdc = 1200 Oe). The SMM behavior is reported also for the anhydrous CeIII derivative (CeMurexAnhy: Ueff = 5.40(0.75) K, 3.75 cm−1; τ0 = 3.02(1.10) × 10−5 s, Hdc = 400 Oe). The Near-Infrared Emission NIR emission was observed for NdMurexAnhy and highlights its bifunctionality.


2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Daniel Avram ◽  
Ion Tiseanu ◽  
Bogdan S. Vasile ◽  
Mihaela Florea ◽  
Carmen Tiseanu

2013 ◽  
Vol 21 (19) ◽  
pp. 22186 ◽  
Author(s):  
Hangjun Wu ◽  
Zhengwen Yang ◽  
Jiayan Liao ◽  
Shenfeng Lai ◽  
Jianbei Qiu ◽  
...  

2018 ◽  
Vol 84 ◽  
pp. 82-88 ◽  
Author(s):  
Jinsheng Liao ◽  
Liyun Kong ◽  
Qi Wang ◽  
Jinqiong Li ◽  
Guanghuai Peng ◽  
...  

2016 ◽  
Vol 18 (27) ◽  
pp. 18268-18277 ◽  
Author(s):  
Mihaela Florea ◽  
Daniel Avram ◽  
Bogdan Cojocaru ◽  
Ion Tiseanu ◽  
Vasile Parvulescu ◽  
...  

We investigate the effects of heterovalent co-dopants on the structural and emission properties of 1% Er–CeO2 nanoparticles.


1994 ◽  
Vol 159 ◽  
pp. 335-335
Author(s):  
M. Salvati ◽  
G. Calamai ◽  
L.K. Hunt ◽  
G. Del Zanna ◽  
E. Giannuzzo ◽  
...  

The near infrared emission (NIR) of radio quiet active galactic nuclei is commonly attributed to dust, absorbing and re-emitting some of the nuclear UV radiation. The dust can survive only at distances larger than a few light months, and any rapid variation of the nuclear radiation, on timescales of a day or less, will be completely smeared out.


2007 ◽  
Vol 336-338 ◽  
pp. 647-650
Author(s):  
Zhi Yong Yang ◽  
Lan Luo ◽  
Wei Chen

Near-infrared emission properties of Dy3+-Tm3+ co-doped Ge-Ga-Sb-Se glasses were investigated. Possible energy transfer routes and the regime of donor decay were discussed. Tm3+ is found to be an efficient sensitizer on the Dy3+:1.34μm luminescence. Probable energy transfer schemes include Tm3+:3H4 → Dy3+: 6F5/2 and Tm3+:3H5 → Dy3+:6F11/2· 6H9/2. The donor (Tm3+) excitation is transferred to an acceptor (Dy3+) by direct interaction or migrates among donors by diffusion-limited regime until it comes into the vicinity of an energy acceptor where direct interaction and transfer occur.


Author(s):  
Kai Zhang ◽  
Tianyu Wang ◽  
Tingwen Wu ◽  
Zhenming Ding ◽  
Qiang Zhang ◽  
...  

With the meteoric progress of near-infrared (NIR) emission materials for solution-processed polymer light-emitting diodes (PLEDs), exploring efficient NIR materials is still a key science issue. Here, bearing acceptor (A)-donor-(D)-acceptor (A)...


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