Results 41 to 50 of about 2,030,406 (189)

Urea‐Formaldehyde Resin Confined Silicon Nanodots Composites: High‐Performance and Ultralong Persistent Luminescence for Dynamic AI Information Encryption

Advanced Science, EarlyView.
Schematic illustration of SiNDs composite materials synthesis and its internal photophysical process mechanism. And an AI‐assisted dynamic information encryption process. ABSTRACT Persistent luminescence materials typically encounter an intrinsic trade‐off between high phosphorescence quantum yield (PhQY) and ultralong phosphorescence lifetime.
Yulu Liu, Lei Cao, Lele Gao, Panyong Wang, Qiannan You, Xinpei Pang, Li Li, Mingzheng Jia, Wen‐Fei Dong, Minghui Zan   +9 more
wiley   +1 more source

Review of scientific topics for Millimetron space observatory

, 2014
This paper describes outstanding issues in astrophysics and cosmology that can be solved by astronomical observations in a broad spectral range from far infrared to millimeter wavelengths.
Bisikalo, D. V., Cherepashchuk, A. M., Doroshkevich, A. G., Ivanov, P. B., Kardashev, N. S., Kostenko, V. I., Larchenkova, T. I., Likhachev, S. F., Lukash, V. N., Malofeev, V. M., Malov, I. F., Mikheeva, E. V., Novikov, I. D., Pilipenko, S. V., Pozanenko, A. S., Shchekinov, Yu. A., Smirnov, A. V., Sobolev, A. M., Wiebe, D. S., Zasov, A. V., Zinchenko, I. I.   +20 more
core   +1 more source

Positional Isomerism Toward Tunable Organic Afterglow and Reversible Photoactivation Behavior for Anti‐Counterfeiting and Encryption

Advanced Functional Materials
Achieving amorphous polymers with ultralong room‐temperature phosphorescence (RTP), tunable organic afterglow, and reversible photoactivation behavior is highly desirable for practical applications but challenging.
Zongyao Wu, Zixuan Xu, Deliang Wang, Guoqing Deng, Songwang Lin, Zheng Zhao, Dong Wang, Yu Xiong, B. Tang   +8 more
semanticscholar   +1 more source

Achieving Photo‐Activated Circularly Polarized Room Temperature Phosphorescence from Natural Biopolymers

Advanced Science, EarlyView.
This bio‐based chiral luminescent system exhibit photo‐activated CPRTP by anchoring arylboronic acids to hydroxypropyl cellulose (HPC) matrix. Notably, by controlling the drying kinetics, dynamic switchable CPRTP with opposite handedness can be obtained due to a balance of photonic bandgap (PBG) effect and chirality transfer effect induced by the HPC ...
Shaoyi Cao, Mingcong Xu, Bang An, Baoqi Li, Wenye Sun, Wenbo Cui, Rui Teng, Chunhui Ma, Sha Luo, Bing Tian, Zhijun Chen, Shouxin Liu, Wei Li   +12 more
wiley   +1 more source

In vivo optical imaging with rare earth doped Ca₂Si₅N₈ persistent luminescence nanoparticles [PDF]

, 2012
A
Bessodes, Michel, Gourier, Didier, Maldiney, Thomas, Poelman, Dirk, Richard, Cyrille, Scherman, Daniel, Smet, Philippe, Sraiki, Guillaume, Van den Eeckhout, Koen, Viana, Bruno   +9 more
core   +3 more sources

Circularly Polarized Long‐Persistent and Photostimulated Luminescence Enabled through Förster Resonance Energy Transfer and Upconversion Strategies

Advanced Science, EarlyView.
Using chiral emitters with circularly polarized luminescence (CPL) characteristics integrated into organic long‐persistent luminescence (OLPL) system demonstrates circularly polarized long‐persistent luminescence (CP‐LPL). Importantly, the Förster resonance energy transfer (FRET)‐based design reveals circularly polarized photostimulated luminescence ...
Ruttapol Malatong, Rengo Yoshioka, Dmitry Kovalevskiy, Kentaro Takaji, Hajime Shigemitsu, Kaede Kawaguchi, Yemineni S. L. V. Narayana, Toshiyuki Kida, Ryota Kabe   +8 more
wiley   +1 more source

Organic Afterglow Vesicles

Advanced Science, EarlyView.
This work constructs organic afterglow vesicles through polymerization‐induced self‐assembly (PISA), integrating thermally activated delayed fluorescence (TADF) type organic afterglow emitters into block copolymer nanostructures. The resulting vesicles exhibited significant room‐temperature afterglow, with an emission lifetime exceeding 200 ...
Siqi Zhu, Biao Xu, Ting Luo, Hui Li, Xinyi Wu, Siqi Zheng, Haodong Li, Yong Gao, Kaka Zhang   +8 more
wiley   +1 more source

Etching method for photoresists or polymers [PDF]

, 1991
A method for etching or removing polymers, photoresists, and organic contaminants from a substrate is disclosed. The method includes creating a more reactive gas species by producing a plasma discharge in a reactive gas such as oxygen and contacting the ...
Lerner, Narcinda R., Wydeven, Theodore J., Jr.   +1 more
core   +1 more source

Sputter deposition of porous thin films from metal/NaCl powder targets [PDF]

, 2019
A method to deposit porous thin films is elucidated. For this purpose, NaCl powder was mixed with a metal powder, cold pressed, and used as a target material in order to deposit a metal/NaCl thin film by DC magnetron sputtering.
Dedoncker, Robin, Depla, Diederik, Rijckaert, Hannes   +2 more
core   +1 more source

Tunable fragmentation of organic molecules in laser ablation glow discharge time-of-flight mass spectrometry [PDF]

, 2018
A DC-pulsed glow discharge (GD) has distinct temporal regimes which are characterized by "softer” or "harder” ionization of analytes introduced into the discharge.
Günther, D., Lotito, G.
core