scholarly journals Preparation and upconversion emission enhancement of SiO_2 coated YbPO_4: Er^3+ inverse opals with Ag nanoparticles

2017 ◽  
Vol 7 (10) ◽  
pp. 3503 ◽  
Author(s):  
Jun Li ◽  
Zhengwen Yang ◽  
Zhuangzhuang Chai ◽  
Jianbei Qiu ◽  
Zhiguo Song
Keyword(s):  
Ag Nanoparticles ◽  
Upconversion Emission ◽  
Inverse Opals ◽  
Emission Enhancement

Upconversion lanthanide nanomaterials: basics introduction, synthesis approaches, mechanism and application in photodetector and photovoltaic devices

2021 ◽  
Author(s):  
Baharak Mehrdel ◽  
Ali Nikbakht ◽  
Azlan Abdul Aziz ◽  
Mahmood S. Jameel ◽  
Mohammed Ali Dheyab ◽  
...  
Keyword(s):  
Optical Properties ◽  
Near Infrared ◽  
Surface Passivation ◽  
Upconversion Emission ◽  
High Energy ◽  
Photovoltaic Devices ◽  
Plasmonic Enhancement ◽  
Host Matrix ◽  
Emission Enhancement ◽  
Improved Performance

Abstract Upconversion (UC) of lanthanide-doped nanostructure has the unique ability to convert low energy infrared (IR) light to high energy photons, which has significant potential for energy conversion applications. This review concisely discusses the basic concepts and fundamental theories of lanthanide nanostructures, synthesis techniques, and enhancement methods of upconversion for photovoltaic and for near-infrared (NIR) photodetector application. In addition, a few examples of lanthanide-doped nanostructures with improved performance were discussed, with particular emphasis on upconversion emission enhancement using coupling plasmon. The use of UC materials has been shown to significantly improve the NIR light-harvesting properties of photovoltaic devices and photocatalytic materials. However, the inefficiency of UC emission also prompted the need for additional modification of the optical properties of UC material. This improvement entailed the proper selection of the host matrix and optimization of the sensitizer and activator concentrations, followed by subjecting the UC material to surface-passivation, plasmonic enhancement, or doping. As expected, improving the optical properties of UC materials can lead to enhanced efficiency of photodetectors and photovoltaic devices.

Synthesis and upconversion emission properties of Pb0·9La0·1TiO3:Yb, Tb inverse opals by sol–gel technique

2013 ◽  
Vol 28 (4) ◽  
pp. 187-191 ◽  
Author(s):  
Z W Yang ◽  
D Yan ◽  
Z G Song ◽  
X Yu ◽  
D C Zhou ◽  
...  
Keyword(s):  
Sol Gel ◽  
Upconversion Emission ◽  
Emission Properties ◽  
Inverse Opals ◽  
Gel Technique

Thermally induced threefold upconversion emission enhancement in nonresonant excited Er3+/Yb3+-codoped chalcogenide glass

1999 ◽  
Vol 74 (24) ◽  
pp. 3607-3609 ◽  
Author(s):  
P. V. dos Santos ◽  
E. A. Gouveia ◽  
M. T. de Araujo ◽  
A. S. Gouveia-Neto ◽  
A. S. B. Sombra ◽  
...  
Keyword(s):  
Chalcogenide Glass ◽  
Upconversion Emission ◽  
Thermally Induced ◽  
Emission Enhancement

Preparation and upconversion emission properties of TiO2 :Yb, Er inverse opals

2011 ◽  
Vol 151 (5) ◽  
pp. 364-367 ◽  
Author(s):  
Zhengwen Yang ◽  
Kan Zhu ◽  
Zhiguo Song ◽  
Dacheng Zhou ◽  
Zhaoyi Yin ◽  
...  
Keyword(s):  
Upconversion Emission ◽  
Emission Properties ◽  
Inverse Opals

scholarly journals The role of Li+ in the upconversion emission enhancement of (YYbEr)2O3 nanoparticles

Nanoscale ◽  
2018 ◽  
Vol 10 (33) ◽  
pp. 15799-15808 ◽  
Author(s):  
Mengistie L. Debasu ◽  
Jesse C. Riedl ◽  
J. Rocha ◽  
Luís D. Carlos
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Upconversion Emission ◽  
Emission Enhancement

Li+-doped (Y0.97−xYb0.02Er0.01Lix)2O3 nanoparticles, x = 0.000–0.123, are prepared by a solid-state reaction; Li+-induced upconversion enhancement is quantitatively assessed.

Upconversion emission enhancement in Er3+/Yb3+-codoped BaTiO3 nanocrystals by tridoping with Li+ ions

2011 ◽  
Vol 284 (7) ◽  
pp. 2046-2049 ◽  
Author(s):  
Xiangqun Chen ◽  
Zhikai Liu ◽  
Qiu Sun ◽  
Mao Ye ◽  
Fuping Wang
Keyword(s):  
Upconversion Emission ◽  
Emission Enhancement

UPCONVERSION LUMINESCENCE ENHANCEMENT OF NaYF4:Yb3+, Er3+ NANOPARTICLES ON INVERSE OPAL SURFACE

2014 ◽  
Vol 21 (01) ◽  
pp. 1450017 ◽  
Author(s):  
JIAYAN LIAO ◽  
ZHENGWEN YANG ◽  
HANGJUN WU ◽  
SHENFENG LAI ◽  
JIANBEI QIU ◽  
...  
Keyword(s):  
Upconversion Luminescence ◽  
Upconversion Emission ◽  
Band Gaps ◽  
Inverse Opal ◽  
Photonic Band Gaps ◽  
Selective Reflection ◽  
Inverse Opals ◽  
Upconversion Emissions ◽  
Photonic Band ◽  
Co Doped

LaPO 4 inverse opal photonic crystals with different photonic band gaps were fabricated by template-assisted method. The Yb 3+/ Er 3+ co-doped NaYF 4 nanoparticles were deposited on the surfaces of the inverse opals, and their up-conversion emission properties were investigated. The upconversion emissions of Yb 3+/ Er 3+ co-doped NaYF 4 nanoparticles on the inverse opal surfaces have been enhanced when the upconversion emission bands of the nanoparticles are in the range of photonic band gaps of the inverse opals, which is attributed to an efficient and selective reflection of photonic band gaps.

scholarly journals Upconversion emission enhancement by porous silver films with ultra-broad plasmon absorption

2017 ◽  
Vol 7 (4) ◽  
pp. 1188 ◽  
Author(s):  
Bo Shao ◽  
Zhengwen Yang ◽  
Jun Li ◽  
Jianzhi Yang ◽  
Yida Wang ◽  
...  
Keyword(s):  
Upconversion Emission ◽  
Silver Films ◽  
Plasmon Absorption ◽  
Emission Enhancement ◽  
Porous Silver
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