scholarly journals Enhancing IR to NIR upconversion emission in Er3+-sensitized phosphors by adding Yb3+ as a highly efficient NIR-emitting center for photovoltaic applications

CrystEngComm ◽  
2020 ◽  
Vol 22 (2) ◽  
pp. 229-236 ◽  
Author(s):  
Hao Wu ◽  
Zhendong Hao ◽  
Liangliang Zhang ◽  
Xia Zhang ◽  
Guo-Hui Pan ◽  
...  
Keyword(s):  
Upconversion Luminescence ◽  
Upconversion Emission ◽  
Highly Efficient ◽  
Luminescence Kinetics ◽  
Photovoltaic Applications

The IR to NIR upconversion emission is enhanced through codoping Yb3+ and the upconversion luminescence kinetics involved is investigated.

Highly efficient upconversion emission of Er3+ in δ-Sc4Zr3O12 and broad-range temperature sensing

2018 ◽  
Vol 20 (21) ◽  
pp. 14461-14468 ◽  
Author(s):  
Wen Liu ◽  
Guo-hui Pan ◽  
Zhendong Hao ◽  
Liangliang Zhang ◽  
Xia Zhang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Upconversion Luminescence ◽  
Upconversion Emission ◽  
Temperature Sensing ◽  
Highly Efficient ◽  
Bright Green

Bright green upconversion luminescence from Er3+ centers in δ-Sc4Zr3O12 and its crystal structure have been examined.

scholarly journals Nano-Crystallization of Ln-Fluoride Crystals in Glass-Ceramics via Inducing of Yb3+ for Efficient Near-Infrared Upconversion Luminescence of Tm3+

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1033
Author(s):  
Jianfeng Li ◽  
Yi Long ◽  
Qichao Zhao ◽  
Shupei Zheng ◽  
Zaijin Fang ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Near Infrared ◽  
Upconversion Luminescence ◽  
Glass Ceramics ◽  
Upconversion Emission ◽  
Ceramic Composites ◽  
Wide Range ◽  
Transmission Window ◽  
Optical Applications ◽  
Upconversion Emissions

Transparent glass-ceramic composites embedded with Ln-fluoride nanocrystals are prepared in this work to enhance the upconversion luminescence of Tm3+. The crystalline phases, microstructures, and photoluminescence properties of samples are carefully investigated. KYb3F10 nanocrystals are proved to controllably precipitate in the glass-ceramics via the inducing of Yb3+ when the doping concentration varies from 0.5 to 1.5 mol%. Pure near-infrared upconversion emissions are observed and the emission intensities are enhanced in the glass-ceramics as compared to in the precursor glass due to the incorporation of Tm3+ into the KYb3F10 crystal structures via substitutions for Yb3+. Furthermore, KYb2F7 crystals are also nano-crystallized in the glass-ceramics when the Yb3+ concentration exceeds 2.0 mol%. The upconversion emission intensity of Tm3+ is further enhanced by seven times as Tm3+ enters the lattice sites of pure KYb2F7 nanocrystals. The designed glass ceramics provide efficient gain materials for optical applications in the biological transmission window. Moreover, the controllable nano-crystallization strategy induced by Yb3+ opens a new way for engineering a wide range of functional nanomaterials with effective incorporation of Ln3+ ions into fluoride crystal structures.

Highly efficient multi-colour upconversion emission of Yb3+/Er3+, Ho3+ codoped single LiYF4 octahedral microparticle

2018 ◽  
Vol 196 ◽  
pp. 187-194 ◽  
Author(s):  
Wei Gao ◽  
Xiangqiao Kong ◽  
Qingyan Han ◽  
Jun Dong ◽  
Wenwen Zhang ◽  
...  
Keyword(s):  
Upconversion Emission ◽  
Highly Efficient

Tuning the size and upconversion emission of NaYF4:Yb3+/Pr3+ nanoparticles through Yb3+ doping

RSC Advances ◽  
2014 ◽  
Vol 4 (99) ◽  
pp. 56302-56306 ◽  
Author(s):  
Shuwei Hao ◽  
Wei Shao ◽  
Hailong Qiu ◽  
Yunfei Shang ◽  
Rongwei Fan ◽  
...  
Keyword(s):  
Upconversion Luminescence ◽  
Upconversion Emission ◽  
Simple Method

We introduce a simple method to tune the resulting size as well as the upconversion luminescence of NaYF4:Yb3+/Pr3+ nanoparticles through varying the sensitizer ytterbium concentration.

MOLTEN SALT SYNTHESIS OF YF3:Yb3+/Ln3+(Ln = Er3+, Tm3+) MICROSHEETS WITH MULTICOLOR UPCONVERSION LUMINESCENCE

2013 ◽  
Vol 06 (06) ◽  
pp. 1350061 ◽  
Author(s):  
MINGYE DING ◽  
CHUNHUA LU ◽  
LINHAI CAO ◽  
YARU NI ◽  
ZHONGZI XU
Keyword(s):  
Molten Salt ◽  
Laser Diode ◽  
Upconversion Luminescence ◽  
Emission Spectra ◽  
Upconversion Emission ◽  
Molten Salt Synthesis ◽  
Molten Salt Method ◽  
Orthorhombic System ◽  
Co Doping ◽  
First Time

In this paper, highly crystalline YF 3: Yb 3+/ Ln 3+( Ln = Er 3+, Tm 3+) microsheets were successfully synthesized by a surfactant-free molten salt method for the first time. The results indicated that the as-obtained samples belonged to orthorhombic system and exhibited microsheets morphology with side lengths of 30 to 80 μm and wall thickness from 1 to 1.5 μm. By changing the dopant's species ( Ln 3+), multicolor (yellow and blue) upconversion emission can be observed in YF 3: Yb 3+/ Ln 3+ microsheets under 980 nm laser diode (LD) excitation. The upconversion mechanisms in co-doping YF 3 samples were analyzed in detail based on the emission spectra. Importantly, this approach not only proposes a new alternative in synthesizing such materials, but also opens the possibility to meet the increasing commercial demand.

A novel upconversion core–multishell nanoplatform for a highly efficient photoswitch

2020 ◽  
Vol 8 (10) ◽  
pp. 3483-3490
Author(s):  
Hao Lin ◽  
Zhiyuan Cheng ◽  
Dekang Xu ◽  
Yongjin Li ◽  
Liqin Xu ◽  
...  
Keyword(s):  
Upconversion Emission ◽  
Highly Efficient

Red upconversion emission is significantly increased on the premise of ensuring optimal UV-blue upconversion emission.

Enhanced red upconversion emission and its mechanism in Yb3+–Er3+ codoped α-NaLuF4 nanoparticles

2017 ◽  
Vol 41 (3) ◽  
pp. 1193-1201 ◽  
Author(s):  
Hao Lin ◽  
Dekang Xu ◽  
Anming Li ◽  
Zhiren Qiu ◽  
Shenghong Yang ◽  
...  
Keyword(s):  
Upconversion Luminescence ◽  
Upconversion Emission ◽  
Initial Solution ◽  
Solution Ph

Red upconversion luminescence is greatly enhanced through manipulation of the initial solution pH.

Insight into the Upconversion Luminescence of Highly Efficient Lanthanide-Doped Bi2O3 Nanoparticles

2018 ◽  
Vol 122 (13) ◽  
pp. 7389-7398 ◽  
Author(s):  
Michele Back ◽  
Enrico Trave ◽  
Pietro Riello ◽  
Jonas J. Joos
Keyword(s):  
Upconversion Luminescence ◽  
Highly Efficient ◽  
Insight Into

Uniform Nanostructured Arrays of Sodium Rare-Earth Fluorides for Highly Efficient Multicolor Upconversion Luminescence

2007 ◽  
Vol 119 (42) ◽  
pp. 8122-8125 ◽  
Author(s):  
Fan Zhang ◽  
Ying Wan ◽  
Ting Yu ◽  
Fuqiang Zhang ◽  
Yifeng Shi ◽  
...  
Keyword(s):  
Rare Earth ◽  
Upconversion Luminescence ◽  
Highly Efficient ◽  
Nanostructured Arrays ◽  
Rare Earth Fluorides

Metallophthalocyanines as triplet sensitizers for highly efficient photon upconversion based on sensitized triplet–triplet annihilation

2016 ◽  
Vol 15 (8) ◽  
pp. 1039-1045 ◽  
Author(s):  
J. L. Han ◽  
J. You ◽  
H. Yonemura ◽  
S. Yamada ◽  
S. R. Wang ◽  
...  
Keyword(s):  
Upconversion Emission ◽  
Highly Efficient ◽  
Platinum Phthalocyanine ◽  
Triplet Triplet Annihilation

Photon upconversion emission from rubrene in the 550–620 nm region was achieved using new soluble palladium and platinum phthalocyanine sensitizers with maximum PUC efficiency ∼5.6%, excited by a 633 nm laser with power <20 mW cm−2.

Sign in / Sign up

Export Citation Format

Share Document