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CAS IR Grid
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长春光学精密机械与物... [3]
新疆理化技术研究所 [1]
昆明植物研究所 [1]
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会议论文 [3]
期刊论文 [2]
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2021 [1]
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Hypoxylonoids A-G: Isopimarane diterpene glycosides from Xylaria hypoxylon
期刊论文
OAI收割
PHYTOCHEMISTRY, 2021, 卷号: 182, 页码: 112613
作者:
Zhou,Peng
;
Zheng,Meijia
;
Li,Xiao-Nian
;
Wei,Mengsha
;
Zhang,Mi
  |  
收藏
  |  
浏览/下载:247/0
  |  
提交时间:2022/04/02
Xylaria hypoxylon
Xylariaceae
Isopimarane diterpene glycosides
X-ray diffraction analyses
FUNGUS
METABOLITES
PIMARANE
Structure and magnetic properties of (Al, Co) Co-doped ZnO thin films (EI CONFERENCE)
会议论文
OAI收割
2012 International Conference on Materials Science and Nanotechnology, ICMSN 2012, November 16, 2012 - November 18, 2012, Guangzhou, China
Cao P.
;
Bai Y.
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浏览/下载:50/0
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提交时间:2013/03/25
In this study
Zn0.99Co0.01Al0.015O thin film has been prepared by sol-gel method. The structural and magnetic properties of the sample were investigated. X-ray diffraction spectroscopy analyses indicate that the Co and Al codoping can not disturb the structure of ZnO. No additional peaks are observed in the Zn0.99Co0.01Al xO and Al3+ and Co2+ substitute for Zn 2+ without changing the wurtzite structure. The resistance measurements confirm that Al ions increase the free carriers concentration. Based on the above experiments we think the ferromagnetic behavior of the sample could not originate from Co nanoclusters. The presence of free carriers and localized d spins is a prerequisite for the appearance of ferromagnetism. As the result
the carriers generated by Al doping is considered a main factor to induce the ferromagnetic phenomenon. (2013) Trans Tech Publications
Switzerland.
Synthesis, crystal structures and optical properties of two congruent-melting isotypic diphosphates: LiM3P2O7 (M = Na, K)
期刊论文
OAI收割
JOURNAL OF SOLID STATE CHEMISTRY, 2012, 卷号: 197, 期号: 1, 页码: 128-133
作者:
Shi Yunjing
;
Wang Ying
;
Pan Shilie
;
Yang Zhihua
;
Dong Xiaoyu
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浏览/下载:68/0
  |  
提交时间:2012/11/29
LiNa3P2O7
LiK3P2O7
Crystal structures
X-ray diffraction
Thermal analyses
Structural and photoluminescence properties of aligned Sb-doped ZnO nanocolumns synthesized by the hydrothermal method (EI CONFERENCE)
会议论文
OAI收割
作者:
Wang X.
;
Wang X.
;
Wang X.
;
Li B.
;
Li B.
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浏览/下载:42/0
  |  
提交时间:2013/03/25
Aligned Sb-doped ZnO nanocolumns were synthesized by a simple hydrothermal method. Based on the analyses of the X-ray diffraction and photoluminescence result
it could be confirmed that the Sb has successfully doped in the ZnO crystal lattices to form an accepter energy level. At 85 K
the recombination of the acceptor-bound exciton was predominant in PL spectrum
which was attributed to the transition of the (SbZn-2VZn) complex bound exciton. The acceptor binding energy had been calculated to be 123 meV. 2009 Published by Elsevier B.V. All rights reserved.
Upconversion luminescence properties of Y2O3:Yb 3+, Er3+ nanostructures (EI CONFERENCE)
会议论文
OAI收割
作者:
Cui Y.
;
Wang Y.
;
Wang Y.
;
Wang Y.
;
Wang Y.
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浏览/下载:43/0
  |  
提交时间:2013/03/25
Cubic Y2O3 nanostructures doped with Yb3+ and Er3+ ions were synthesized by a facile hydrothermal method. Three distinct shapes such as nanotubes
nanospheres and nanoflakes formed in the products by adjusting the pH value of reacting solution. Powder X-ray diffraction analyses indicate that all the three nanostructures are pure cubic phase
while electron microscopy measurements confirm the formation of different morphologies. These nanostructures exhibit strong visible upconversion luminescence under the excitation of a 978-nm diode laser. In Yb3+- and Er3+- codoped Y2O3 nanocrystals
the relative intensity of green emission became stronger as the size and morphology of sample changed from tubes to flakes. 2006 Elsevier B.V. All rights reserved.