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浏览/检索结果: 共9条,第1-9条 帮助

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Photo-Stimulated Polychromatic Room Temperature Phosphorescence of Carbon Dots 期刊论文  OAI收割
SMALL, 2020, 卷号: 16, 期号: 31
作者:  
Jiang, Kai;  Hu, Sizhe;  Wang, Yuci;  Li, Zhongjun;  Lin, Hengwei
  |  收藏  |  浏览/下载:87/0  |  提交时间:2020/12/16
Afterglow of carbon dots: mechanism, strategy and applications 期刊论文  OAI收割
MATERIALS CHEMISTRY FRONTIERS, 2020, 卷号: 4, 期号: 2, 页码: 386-399
作者:  
Jiang, Kai;  Wang, Yuhui;  Li, Zhongjun;  Lin, Hengwei
  |  收藏  |  浏览/下载:91/0  |  提交时间:2020/12/16
Visible-Light-Excited Room Temperature Phosphorescent Carbon Dots 期刊论文  OAI收割
NANOMATERIALS, 2020, 卷号: 10, 期号: 3
作者:  
Hu, Sizhe;  Jiang, Kai;  Wang, Yuci;  Wang, Sui;  Li, Zhongjun
  |  收藏  |  浏览/下载:37/0  |  提交时间:2020/12/16
No pulsed radio emission during a bursting phase of a Galactic magnetar 期刊论文  OAI收割
Nature, 2020, 卷号: 587, 页码: 63-65
作者:  
HXMT
  |  收藏  |  浏览/下载:44/0  |  提交时间:2022/02/08
Astrophysics - High Energy Astrophysical Phenomena  Abstract: Fast radio bursts (FRBs) are millisecond-duration radio transients of unknown physical origin observed at extragalactic distances1-3. It has long been speculated that magnetars are the engine powering repeating bursts from FRB sources4-13, but no convincing evidence has been collected so far14. Recently, the Galactic magnetar SRG 1935+2154 entered an active phase by emitting intense soft íray bursts15. One FRB-like event with two peaks (FRB 200428) and a luminosity slightly lower than the faintest extragalactic FRBs was detected from the source, in association with a soft íray/hard-X-ray flare18-21. Here we report an eight-hour targeted radio observational campaign comprising four sessions and assisted by multi-wavelength (optical and hard-X-ray) data. During the third session, 29 soft-íray repeater (SGR) bursts were detected in íray energies. Throughout the observing period, we detected no single dispersed pulsed emission coincident with the arrivals of SGR bursts, but unfortunately we were not observing when the FRB was detected. The non-detection places a fluence upper limit that is eight orders of magnitude lower than the fluence of FRB 200428. Our results suggest that FRB-SGR burst associations are rare. FRBs may be highly relativistic and geometrically beamed, or FRB-like events associated with SGR bursts may have narrow spectra and characteristic frequencies outside the observed band. It is also possible that the physical conditions required to achieve coherent radiation in SGR bursts are difficult to satisfy, and that only under extreme conditions could an FRB be associated with an SGR burst.  
Preparation of Multicolor Photoluminescent Carbon Dots by Tuning Surface States 期刊论文  OAI收割
NANOMATERIALS, 2019, 卷号: 9, 期号: 4
作者:  
Jiang, Kai;  Feng, Xiangyu;  Gao, Xiaolu;  Wang, Yuhui;  Cai, Congzhong
  |  收藏  |  浏览/下载:118/0  |  提交时间:2019/12/18
Selective biocompatibility and responsive imaging property of cationic conjugated polyelectrolyte to cancer cells 期刊论文  OAI收割
CHINESE CHEMICAL LETTERS, 2017, 卷号: 28, 期号: 10, 页码: 1975-1978
作者:  
Wang, Bing;  Nie, Chenyao;  Liu, Libing;  Lv, Fengting;  Wang, Shu
  |  收藏  |  浏览/下载:28/0  |  提交时间:2019/04/09
MBE InAs quantum dots grown on metamorphic InGaAs for long wavelength emitting 期刊论文  OAI收割
physica e-low-dimensional systems & nanostructures, 2006, 卷号: 35, 期号: 1, 页码: 194-198
Jiao YH (Jiao Y. H.); Wu J (Wu J.); Xu B (Xu B.); Jin P (Jin P.); Hu LJ (Hu L. J.); Liang LY (Liang L. Y.); Wang ZG (Wang Z. G.)
收藏  |  浏览/下载:40/0  |  提交时间:2010/04/11
Spontaneous emission and gain characteristics of InGaAs/InGaAsP quantum well laser (EI CONFERENCE) 会议论文  OAI收割
Optoelectronic Devices and Integration, November 8, 2004 - November 11, 2004, Beijing, China
作者:  
Wang L.;  Wang L.;  Wang L.
收藏  |  浏览/下载:16/0  |  提交时间:2013/03/25
Carbon Dots with Dual-Emissive, Robust, and Aggregation-Induced Room-Temperature Phosphorescence Characteristics 期刊论文  OAI收割
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
作者:  
Jiang, Kai;  Gao, Xiaolu;  Feng, Xiangyu;  Wang, Yuhui;  Li, Zhongjun
  |  收藏  |  浏览/下载:20/0  |  提交时间:2019/12/18