Results 91 to 100 of about 23,831 (231)

Circular Economy durch moderne Chemie – aktuelle Forschung zu Nachhaltigkeit experimentell im Schülerlabor erfahren

CHEMKON, EarlyView.
Die Circular Economy gilt als zentrales Leitbild für eine nachhaltige Ressourcennutzung und sollte daher stärker in der naturwissenschaftlichen Bildung verankert werden. Der Artikel stellt ein Schülerlaborprogramm im TüChemLab vor, das Schülerinnen und Schülern den Beitrag moderner Chemie zu einer Circular Economy anhand aktueller Forschung vermittelt.
Alexander Fritz, Stefan Schwarzer
wiley   +1 more source

The Spectral Response of Phosphors to Fast Ions

, 1973
The spectral distribution of the ionoluminescent response of a number of phosphors is compared to that of photoluminescence. For the single peaked phosphors, the response is the same.
E. H. Goh, B. J. Spenceley, L. Hastings
core   +1 more source

Fluorescent Colored Passive Radiative Cooling Based on Carbon Dots for Cooling Power Recovery

EcoEnergy, EarlyView.
We demonstrate colored passive radiative coolers consisting of a highly reflective porous ceramic base covered by an eco‐friendly luminescent carbon dot‐polymer composite, with two types of carbon dots enabling conversion of either ultraviolet or visible light, respectively.
Lin Liang, Chui Ting Kwok, Maksim Miropoltsev, Kaixin Lin, Elena V. Ushakova, Yang Fu, Wenqi Wang, Hao Li, Dong Lv, Yihao Zhu, Wenjie Liu, Andrey L. Rogach, Chi Yan Tso   +12 more
wiley   +1 more source

Mn 2+ and Mn 4+ red phosphors: synthesis, luminescence and applications in WLEDs. A review

, 2018
Transition-metal activated phosphors are an important family of luminescent materials that can produce white light with an outstanding color rendering index and correlated color temperature for use in light-emitting diodes. In recent years, work in this
Leonid Dolgov, Wang, Zhengliang, Jianxin Shi, Shi, Jianxin, Mingmei Wu, Qiang Zhou, Lei Zhou, Miroslav D. Dramićanin, Dolgov, Leonid, Zhengliang Wang, Srivastava, Alok M, Zhou, Lei, Wu, Mingmei, Dramićanin, Miroslav, Brik, Mikhail G., Mikhail G. Brik, Zhou, Qiang, Alok M. Srivastava   +17 more
core   +1 more source

Enhancing the Ferroelectricity of MAPbI3 via Hydroxyl Groups to Boost Photocatalytic Performance

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The hydroxyl groups in (EOA)2PbBr4 enable a rearrangement of the polar MA+ ions in MAPbI3, which enhances the Ps‐electric field and promotes the separation of photogenerated carriers. Consequently, the (EOA)2PbBr4/MAPbI3 composite exhibits the enhanced CO production yield in photocatalytic CO2 reduction reactions.
Zhaohui Fang, Zhihan Yu, Yulong Liao, Yuanxun Li, Minshu Chen, Yuan Teng, Quanjun Xiang   +6 more
wiley   +1 more source

Effect of Synthesis Conditions on the Photoluminescent Properties of Si-Substituted CaYAlO₄:Eu: Sources of Experimental Errors in Solid-State Synthesis

Inorganics
To improve the luminescent efficiency of and to design the color spectrum of phosphors, the comprehensive understanding of the correlation between physical parameters and luminescent properties is imperative, necessitating systematic experimental studies.
Ju Hyun Oh, Yookyoung Lee, Jihee Kim, Woo Tae Hong, Hyun Kyoung Yang, Mijeong Kang, Seunghun Lee   +6 more
doaj   +1 more source

ZnO Nanowires by Chemical Bath Deposition: A Review on Doping and Functional Devices

Electron, EarlyView.
This review reports the most recent and well‐established state‐of‐the‐art and scientific challenges related to the doping of ZnO nanowires by chemical bath deposition, encompassing native point and hydrogen‐related defects, as well as extrinsic dopants.
Clément Lausecker, Adrien Baillard, Estelle Appert, Vincent Consonni   +3 more
wiley   +1 more source

Ion exchange-assisted surface passivation toward highly stable red-emitting fluoride phosphors for light-emitting diodes

Scientific Reports
A facile and environmentally friendly ion exchange-assisted surface passivation (IASP) strategy is presented for synthesizing red emitting Mn4+-activated fluoride phosphors.
Xumian Qiao, Hassan Siddique, Xinhua Li, Song Zhu, Sifei Liu, Maomao Gu, Haoyu Yang, Donghui Zhang, Qiang Zhao   +8 more
doaj   +1 more source

Investigation of Photoluminescence Properties and Random Lasing Behaviors in Dy³⁺-Doped Sr₂MgMoO₆ Phosphors

IEEE Photonics Journal
Lanthanide-doped phosphors are of importance in the practical applications. In this work, we investigated the photoluminescence properties and random lasing behaviors of Dy3+-doped Sr2MgMoO6 phosphors synthesized by the high-temperature solid-state ...
Yexi Sun, Qianyu Huang, Xin Guo, Maohui Yuan, Kai Han   +4 more
doaj   +1 more source

Synergistic CNT‐Integrated Ni‐Phthalocyanine/g‐C3N4 Heterojunctional Photocatalysts With Single Ni–N4 (II) Sites for Efficient Ammonia Synthesis

Electron, EarlyView.
We present a tandem nickel phthalocyanine (NiPc)/CNT‐P&Cu‐BCN photocatalyst, engineered with an organic–organic heterojunction for enhanced nitrogen conversion. This system integrates boron‐doped (B) nitrogen‐deficient (N) carbon nitride (CN), modified via Cu–Cu coordination and phosphorus doping through sodium borohydride‐assisted thermal treatment ...
Imran Khan, Khaled Alsaikhan, Habib Khemira, Atef El Jery, Anam Iqbal, Kanwal Iqbal   +5 more
wiley   +1 more source