Hedgehog ZnO/Ag heterostructure: an environment-friendly rare earth free potential material for cold-white light emission with high quantum yield

2018 ◽  
Vol 124 (11) ◽  
Author(s):  
Puja Bhattacharyya ◽  
Swarupananda Bhattacharjee ◽  
Manoranjan Bar ◽  
Uttam Kumar Ghorai ◽  
Mrinal Pal ◽  
...  
2017 ◽  
Vol 53 (2) ◽  
pp. 392-395 ◽  
Author(s):  
Wen-Chao Geng ◽  
Yan-Cen Liu ◽  
Yu-Ying Wang ◽  
Zhe Xu ◽  
Zhe Zheng ◽  
...  

White light emission was successfully achieved with high quantum yield in a novel FRET platform based on a macrocyclic amphiphile.


2020 ◽  
Vol 8 (10) ◽  
pp. 3380-3385 ◽  
Author(s):  
Juan Xue ◽  
Xihan Xu ◽  
Yi Zhu ◽  
Dayong Yang

A WLE hydrogel simultaneously possessing high quantum yield (18.00%) and multiple stimulus responsiveness is designed and synthesized. Our work provides a straightforward strategy to prepare smart white-light emission hydrogels.


2015 ◽  
Vol 51 (15) ◽  
pp. 3045-3048 ◽  
Author(s):  
Zhichao Hu ◽  
Guangxi Huang ◽  
William P. Lustig ◽  
Fangming Wang ◽  
Hao Wang ◽  
...  

We build a new rare-earth-free blue-excitable phosphor, which emits yellow light with high quantum yield. Coating a blue LED with this phosphor generates white light with high luminous efficacy.


2011 ◽  
Vol 119 (1394) ◽  
pp. 726-730 ◽  
Author(s):  
Hirokazu MASAI ◽  
Takumi FUJIWARA ◽  
Syuji MATSUMOTO ◽  
Yoshihiro TAKAHASHI ◽  
Kenichiro IWASAKI ◽  
...  

2021 ◽  
pp. 118535
Author(s):  
Weiling Yang ◽  
Zhongyuan Zhang ◽  
Tianqing Zhang ◽  
Xu Zhang ◽  
Xueming Shi ◽  
...  

ChemInform ◽  
2009 ◽  
Vol 40 (5) ◽  
Author(s):  
Daqin Chen ◽  
Yuansheng Wang ◽  
Yunlong Yu ◽  
Ping Huang ◽  
Fangyi Weng

2015 ◽  
Vol 51 (15) ◽  
pp. 3094-3097 ◽  
Author(s):  
Ze-Ping Wang ◽  
Jin-Yun Wang ◽  
Jian-Rong Li ◽  
Mei-Ling Feng ◽  
Guo-Dong Zou ◽  
...  

Presented is an antimony-based photoluminescent material, namely [Bmim]2SbCl5, exhibiting bright yellow and white light photoluminescence with quantum yield as high as 86.3%.


2021 ◽  
Author(s):  
Yongchao Wang ◽  
Yi Zhang ◽  
Dongxin Li ◽  
Aiqin Zhang ◽  
hua wang ◽  
...  

2020 ◽  
Author(s):  
Shilpi Jaiswal ◽  
Jyotsana Pathak ◽  
Abhijit Patra

Semiconductor nanocrystals are promising for display and lighting devices. Herein, we report a facile one-pot synthetic route to fabricate white light emitting CdSexSy nanocrystals with enhanced quantum yield using CdO, S powder, and Se powder as precursors. The phosphine-free route was adopted, employing paraffin oil as the reducing agent and solvent for the fabrication. The optical properties can be effectively tailored by controlling the reaction time and the molar ratio of Se/S. The emission of pristine CdSexSy nanocrystals covered a broad visible range from 400 to 750 nm. The CdSexSy nanocrystals (Se/S = 0.4) exhibited white-light emission with quantum yield of 50 ± 3 % and Commission Internationale de l'Eclairage (CIE) chromaticity coordinates of (0.30, 0.31). The band-edge (~400-450 nm) to trap-state (~550-750 nm) emissions was tuned by controlling the Se/S ratio, and the different shades of white light were obtained. Furthermore, the quantum yield and CIE coordinates of the CdSexSy nanocrystals (Se/S = 0.4) were found to be similar even after 30 days of fabrication, showing the high stability of nanocrystals. The white light emission was retained in nanocrystals-embedded poly(methyl methacrylate) (PMMA) thin film and also in the hydrogel matrix. The one-pot, low-cost, scalable fabrication of white light emitting CdSexSy nanocrystals demonstrated in the present study offers promising scope in the solid-state display applications. <br>


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