Results 101 to 110 of about 7,192 (202)

Unusual Effect of Cerium Codoping on Stokes and Anti-Stokes Luminescence of BiOCl:Er ³⁺ Crystal

IEEE Photonics Journal, 2015
Effect of cerium codoping on Stokes or anti-Stokes luminescence of BiOCl:Er 3+ crystals, which were controlled by a special photon avalanche (PA) mechanism under 980-nm excitation, was investigated.
Qun Liu, Yongjin Li, Qingliang Kuang, Zhiguo Song, Ronghua Wan, Yuting Zhou, Zuyuan Xu, Rui Hu, Jianbei Qiu, Zhengwen Yang, Zhaoyi Yin   +10 more
doaj   +1 more source

Upconversion nanoparticles: on the way from diagnostics to theranostics

EPJ Web of Conferences, 2018
We report of surface modification approaches of nanoparticles with anti-Stokes luminescence, known as upconversion nanoparicles (UCNPs), comprised of inorganic host NaYF4 codoped with Yb3+ and Er3+or Tm3+.
Generalova Alla, Mironova Kristina, Sholina Natalya, Rocheva Vasylina, Nechaev Andrey, Grebenik Ekaterina, Guller Anna, Zvyagin Andrey, Deyev Sergey, Zubov Vitaly, Khaydukov Evgeny   +10 more
doaj   +1 more source

Amphiphilic Anionic Pt(II) Complexes: from spectroscopic to morphological changes [PDF]

, 2012
A new class of amphiphilic anionic platinum(II) bzimpy complexes has been demonstrated to show aggregation in water through PtfflfflfflPt and π–π stacking interactions.
Po, C, Tam, AYY, Wong, KMC, Yam, VWW
core  

Enhancement of Upconversion for Photovoltaics with β-NaYF4:Er3+ and Concentrating Integrated Optics [PDF]

, 2015
Renewable Energy and the Environment of the OSA Optics and Photonics Congress 2013, Tucson, USA, 3-6 November 2013The internal photoluminescence quantum yield of β-NaYF4:Er3+ is determined under broadband excitation and a photovoltaic-upconverter system ...
Arnaoutakis, Georgios E., Ivaturi, Aruna, Kramer, Karl W., Mallick, Tapas K., Marques-Hueso, Jose, Richards, Bryce S.   +5 more
core  

Improving Upconversion Photoluminescence of GdAlO3:Er3+, Yb3+ Phosphors via Ga3+, Lu3+ Doping

International Journal of Optics, 2019
GdAlO3:Er3+, Yb3+ phosphors doped with Lu3+, Ga3+ ions were prepared via coprecipitation. The influences of substituting Ga3+ for Al3+ and substituting Lu3+ for Gd3+ on the structure and upconversion photoluminescence (UCPL) of the phosphors were studied.
Taoli Deng, Shirun Yan, Xiangbang Jiang, Qiuyun Zhang   +3 more
doaj   +1 more source

Near-infrared light harvesting of upconverting NaYF4:Yb3+/Er3+-based amorphous silicon solar cells investigated by an optical filter

Beilstein Journal of Nanotechnology, 2018
The wastage of near-infrared light seriously restricts the photoelectric conversion efficiency of hydrogenated amorphous silicon (a-Si:H) thin film solar cells. Spectral upconversion is of great significance in reducing the wastage.
Daiming Liu, Qingkang Wang, Qing Wang
doaj   +1 more source

Plasmonic Enhanced Photoluminescence of Lanthanide-Doped Upconversion Nanoparticles

Lanthanide-doped upconversion nanoparticles (UCNPs) have garnered great interest in recent decades due to their unique ability to convert near-infrared excitation into ultraviolet or visible emission. Advancements in understanding this phenomenon have been advantageous to expanding the wide range of applications for UCNPs, from biomedicine to ...
Caroline Friedersdorf, Hao Jing
openaire   +1 more source

Boosting Triplet‐Triplet Annihilation Upconversion in OLEDs via Substituent Control in Dicarbazolyl Anthracenes

Advanced Electronic Materials
The aim of this work is the exploration of the impact of the methoxy‐, methoxyethoxy‐ and tert‐butyl functional groups on the structure‐property relationships of the derivatives of anthracene and carbazole exhibiting triplet‐triplet annihilation (TTA ...
Pavel Arsenyan, Alla Petrenko, Audrius Bucinskas, Ehsan Ullah Rashid, Kuan‐Wei Chen, Jiun‐Haw Lee, Tien‐Lung Chiu, Oleksandr Bezvikonnyi, Dmytro Volyniuk, Sergey Belyakov, Juozas V. Grazulevicius   +10 more
doaj   +1 more source

Optimized NaYF₄: Er³⁺/Yb³⁺ Upconversion Nanocomplexes via Oleic Acid for Biomedical Applications

Inorganics
This study presents the synthesis of NaYF4: Er3+/Yb3+ upconversion luminescent nanomaterials using a wet chemistry method. The role of oleic acid in influencing the size, shape, and luminescent properties of the materials was also investigated.
Ha Thi Phuong, Le Thi Vinh, Tong Quang Cong, Tran Quoc Tien, Nguyen Duc Van, Vu Thi Hong Ha, Vu Ngoc Phan, Le Thi Hoi, Pham Duc Thang, Do Thi Thao, Tran Thu Huong   +10 more
doaj   +1 more source

Achieving versatile optoelectronic applications of environment-friendly halide double perovskite by multi-ion codoping strategy

APL Materials
Lead-free halide double perovskites (DPs) have been regarded as a class of environmentally friendly and promising optoelectronic materials. Herein, we report the synthesis, luminescence properties, and optoelectronic applications of lanthanide (Ln = Yb3+/
Cheng Li, Yang Yu, Peigeng Han, Wei Zhou, Hui Li, Ruifeng Lu   +5 more
doaj   +1 more source