Results 21 to 30 of about 78,761 (235)

Narrow UVB-Emitted YBO₃ Phosphor Activated by Bi³⁺ and Gd³⁺ Co-Doping

Nanomaterials, 2023
Y0.9(GdxBi1−x)0.1BO3 phosphors (x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0, YGB) were obtained via high-temperature solid-state synthesis. Differentiated phases and micro-morphologies were determined by adjusting the synthesis temperature and the activator ...
Zhimin Yu, Yang Yang, Jiaming Sun
doaj   +1 more source

Implementing Defects for Ratiometric Luminescence Thermometry

Nanomaterials, 2020
In luminescence thermometry enabling temperature reading at a distance, an important challenge is to propose new solutions that open measuring and material possibilities.
Joanna Drabik, Karolina Ledwa, Łukasz Marciniak   +2 more
doaj   +1 more source

Facile Synthesis of Highly Emissive All-Inorganic Manganese Bromide Compounds with Perovskite-Related Structures for White LEDs

Molecules, 2022
Lead-free all-inorganic halide materials with different Mn2+-based crystal structures (Cs3MnBr5 and CsMnBr3) were obtained using a convenient synthetic method. Cs3MnBr5 had a bright green emission (522 nm), with a unique single-exponential lifetime (τavg
Ping Gao, Suwen Cheng, Jiaxin Liu, Junjie Li, Yanyan Guo, Zhengtao Deng, Tianshi Qin, Aifei Wang   +7 more
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Optical Model of Laminated Remote Phosphor Films and Its Application in White LED

Advances in Condensed Matter Physics, 2019
Based on Mie scattering and Monte Carlo ray tracing method, the transmission process of light in the remote phosphor film is described and the optical model of red and green laminated phosphor films is constructed.
Yong-Hao Chen, Ning-Ze Zhuo, Peng Jiang, Shao-Wen Cheng, Peng-Fei Shen, Hai-Bo Wang   +5 more
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Crystal structure, morphology and enhancement of luminescence properties of Cr3+-doped KZnF3 phosphor by using a HF-free hydrothermal method with different chromium sources

Materials Research Express, 2023
In this study, a series of near-infrared (NIR) KZnF _3 :Cr ^3+ phosphors was prepared by different chromium sources using a HF-free hydrothermal method.
Yifan Yang, Yongqi Zhu, Shuang Wu, Xinyue Li, Qinan Mao, Yifan Chen, Jiasong Zhong, Yiwen Zhu   +7 more
doaj   +1 more source

The preparation of luminescent and reversible thermochromic Mn-doped Ca-Zn-Al-O inorganic materials

Journal of Asian Ceramic Societies, 2022
In this research, we reported the thermochromic and luminescent behaviors of Ca14Zn6Al10-xMnxO35 (x = 0,0.5,1.0,1.5,2) garnet materials prepared by a high-temperature solid-state reaction method. Thermochromism of all samples showed gradual tunability of
Vorrada Loryuenyong, Pitsinee Juikatu, Pichanut Sirisukha, Ukrit Kumleing, Achanai Buasri   +4 more
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The Effects of TiO₂ Diffuser-Loaded Encapsulation on Corrected Color Temperature Uniformity of Remote Phosphor White LEDs

Applied Sciences, 2019
With the development of high-efficiency and high-power LEDs, they have become the most energy-efficient and environmentally friendly artificial light source. Phosphor-converted white LEDs are currently mainstream in the market.
Yung-Fang Chou, Chi-Feng Chen, Shang-Ping Ying, Yun-Ying Yeh   +3 more
doaj   +1 more source

Structural metamorphosis and photophysical properties of thermostable nano- and microcrystalline lanthanide polymer with flexible coordination chains

Science and Technology of Advanced Materials, 2023
Luminescent lanthanide coordination polymer crystals (LCPCs) represent an area of growing interest in materials chemistry owing to their unique and tailorable functional properties. The LCPCs provide a high level of structural tunability, including size-
Takayuki Nakanishi, Yuichi Hirai, Jian Xu, Takashi Takeda, Shunsuke Watanabe, Atsuo Yasumori, Shou Hakamada, Yuichi Kitagawa, Yasuchika Hasegawa   +8 more
doaj   +1 more source

Suppressing Photothermal Artifacts in Flexible Fluorescent Fiber-Optic Sensors for Accurate and Precise In Situ Temperature Monitoring. [PDF]

Adv Sci (Weinh)
A partial‐inner‐cladding optical fiber (PICOF) is developed to suppress photothermal artifacts in fluorescent fiber‐optic thermometry by isolating the sensing layer from regions prone to photothermal effects. This structural design strategy enables high‐fidelity operation at elevated excitation power, achieving high accuracy (maximum absolute error ...
Su S, Yu J, Dong P, Wang X, Lyu J, Gan J, Song E, Zhang Q.   +7 more
europepmc   +2 more sources

Europium doped di-calcium magnesium di-silicate orange–red emitting phosphor by solid state reaction method

Journal of Radiation Research and Applied Sciences, 2015
A new orange–red europium doped di-calcium magnesium di-silicate (Ca2MgSi2O7:Eu3+) phosphor was prepared by the traditional high temperature solid state reaction method. The prepared Ca2MgSi2O7:Eu3+ phosphor was characterized by X-ray diffractometer (XRD)
Ishwar Prasad Sahu, D.P. Bisen, Nameeta Brahme   +2 more
doaj   +1 more source