scholarly journals Modulation of upconversion luminescence spectrum of single rare-earth-doped upconversion nanocrystal based on plasmonic nanocavity

2022 ◽  
Vol 71 (2) ◽  
pp. 027801-027801
Author(s):  
Meng Yong-Jun ◽  
◽  
Li Hong ◽  
Tang Jian-Wei ◽  
Chen Xue-Wen
2016 ◽  
Vol 4 (4) ◽  
pp. 684-690 ◽  
Author(s):  
Ting Wen ◽  
Yannan Zhou ◽  
Yanzhen Guo ◽  
Chunmei Zhao ◽  
Baocheng Yang ◽  
...  

Vernier phase YbOF nanoparticles fabricated via a low temperature fluorination route show color-tunable and single-band red upconversion luminescence.


2019 ◽  
Vol 7 (15) ◽  
pp. 4336-4343 ◽  
Author(s):  
Denghao Li ◽  
Weirong Wang ◽  
Xiaofeng Liu ◽  
Chun Jiang ◽  
Jianrong Qiu

Volatilization of surface moieties and sintering of the particles both contribute to thermally activated enhancement of upconversion emission.


2009 ◽  
Vol 17 (11) ◽  
pp. 9089 ◽  
Author(s):  
Yunxin Liu ◽  
Wojciech A. Pisarski ◽  
Songjun Zeng ◽  
Changfu Xu ◽  
Qibin Yang

2013 ◽  
Vol 562 ◽  
pp. 38-42 ◽  
Author(s):  
H. Sekhar ◽  
G. Trivikrama Rao ◽  
P. Harshavardhan Reddy ◽  
D. Narayana Rao

Author(s):  
Vikas Dubey ◽  
Neha Dubey ◽  
Ravi Shrivastava ◽  
Jagjeet KaurSaluja ◽  
Sudipta Som ◽  
...  

The upconversion (UC) of the rare earth doped MY2O4 (M=Ba, Sr, Ca) has been extensively investigated due to their potential applications in many fields, such as color display, high density memories, optical data storage, sensor and energy solar cell, etc. Many series of them, especially the Er3+, Yb3+ doped MY2O4 were studied in this chapter, due to the thermal and mechanical toughness, high optical transmittance from the ultraviolet to the infrared regions, and a low nonlinear refractive index compared to the other commercial laser glasses. The energy transfer (ET) mechanism of rare earth doped phosphor plays an important role in the upconversion process.


Molecules ◽  
2019 ◽  
Vol 24 (2) ◽  
pp. 357 ◽  
Author(s):  
Lili Xu ◽  
Man Wang ◽  
Qing Chen ◽  
Jiajia Yang ◽  
Wubin Zheng ◽  
...  

In recent years, rare earth doped upconversion nanocrystals have been widely used in different fields owing to their unique merits. Although rare earth chlorides and trifluoroacetates are commonly used precursors for the synthesis of nanocrystals, they have certain disadvantages. For example, rare earth chlorides are expensive and rare earth trifluoroacetates produce toxic gases during the reaction. To overcome these drawbacks, we use the less expensive rare earth hydroxide as a precursor to synthesize β-NaYF4 nanoparticles with multiform shapes and sizes. Small-sized nanocrystals (15 nm) can be obtained by precisely controlling the synthesis conditions. Compared with the previous methods, the current method is more facile and has lower cost. In addition, the defects of the nanocrystal surface are reduced through constructing core–shell structures, resulting in enhanced upconversion luminescence intensity.


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