Luminous tuning in Eu3+/Mn4+ co-doped double perovskite structure by designing the site-occupancy strategy for solid-state lighting and optical temperature sensing

Author(s):  
Qiuya Tang ◽  
Ning Guo ◽  
Yanmei Xin ◽  
Wenting Li ◽  
Baiqi Shao ◽  
...  
2018 ◽  
Vol 74 (7) ◽  
pp. 1006-1009 ◽  
Author(s):  
Matthias Weil

Single crystals of Ba2K2Te2O9(dibarium dipotassium nonaoxidoditellurate), (I), Ba2KNaTe2O9(dibarium potassium sodium nonaoxidoditellurate), (II), and Ba2CaTeO6(dibarium calcium hexaoxidotellurate), (III), were obtained from KNO3/KI or KNO3/NaNO3flux syntheses in platinum crucibles for (I) and (II), or porcelain crucibles for (III). (I) and (II) are isotypic and are members of triple perovskites with general formulaA2[12co]A′[12co]B2[6o]B′[6o]O9. They crystallize in the 6H-BaTiO3structure family in space-group typeP63/mmc, with theA,A′,BandB′ sites being occupied by K, Ba, Te and a second Ba in (I), and in (II) by mixed-occupied (Ba/K), Ba, Te and Na sites, respectively. (III) adopts theA2[12co]B′[6o]B′′[6o]O6double perovskite structure in space-group typeFm-3m, with Ba, Ca and Te located on theA,B′ andB′′sites, respectively. The current refinement of (III) is based on single-crystal X-ray data. It confirms the previous refinement from X-ray powder diffraction data [Fuet al.(2008).J. Solid State Chem.181, 2523–2529], but with higher precision.


2019 ◽  
Vol 123 (44) ◽  
pp. 27132-27139
Author(s):  
Ersen Mete ◽  
Selda Odabaşı ◽  
Haiyan Mao ◽  
Tiffany Chung ◽  
Şinasi Ellialtıoğlu ◽  
...  

2019 ◽  
Vol 48 (30) ◽  
pp. 11382-11390 ◽  
Author(s):  
Weiguang Ran ◽  
Hyeon Mi Noh ◽  
Sung Heum Park ◽  
Byung Chun Choi ◽  
Jung Hwan Kim ◽  
...  

Application of an ultra-sensitive temperature sensor in solid-state lighting and detection of chip temperature.


2013 ◽  
Vol 683 ◽  
pp. 3-6
Author(s):  
Jia Yue Sun ◽  
Bing Xue ◽  
Guang Chao Sun ◽  
Dian Peng Cui ◽  
Hai Yan Du

The upconversion (UC) luminescence properties of phosphor Tm3+/Yb3+co-doped Gd2Mo3O9were investigated in detail. Tm3+/Yb3+co-doped Gd2Mo3O9was prepared by solid-state reaction method using Na2CO3as flux and characterized by powder X-ray diffractometry. Under 980nm excitation, Tm3+/Yb3+co-doped Gd2Mo3O9has exhibited a weak red emission near 651nm and strong blue emission at 476nm. Tm3+/Yb3+co-doped Gd2Mo3O9phosphor has been considered as a better candidate in solid-state lighting applications.


2020 ◽  
Vol 49 (24) ◽  
pp. 8194-8200 ◽  
Author(s):  
Jiashan Mao ◽  
Bin Jiang ◽  
Peng Wang ◽  
Liting Qiu ◽  
Muhammad Tahir Abass ◽  
...  

Eu3+ and Er3+ co-doped YNbO4 powder phosphors were synthesized by a traditional high-temperature solid-state reaction method.


2017 ◽  
Vol 96 ◽  
pp. 43-49 ◽  
Author(s):  
Anjie Fu ◽  
Anxiang Guan ◽  
Fangfang Gao ◽  
Xiaoshan Zhang ◽  
Liya Zhou ◽  
...  

2021 ◽  
pp. 118096
Author(s):  
Chenwei Xu ◽  
Chenxia Li ◽  
Degang Deng ◽  
Hua Yu ◽  
Le Wang ◽  
...  

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