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长春光学精密机械与物... [4]
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会议论文 [4]
期刊论文 [4]
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Understanding crystal structure roles towards developing high-performance V-free BCC hydrogen storage alloys
期刊论文
OAI收割
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2022, 卷号: 47, 期号: 60, 页码: 25335-25346
作者:
Hu, Huazhou
;
Ma, Chuanming
;
Zhou, Lu
;
Xiao, Houqun
  |  
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2023/02/24
Hydrogen storage alloys
V-free
Hydrogen storage mechanisms
Microstructures
Rapid cooling
Simple O-2 Plasma-Processed V2O5 as an Anode Buffer Layer for High-Performance Polymer Solar Cells
期刊论文
OAI收割
ACS APPLIED MATERIALS & INTERFACES, 2015, 卷号: 7, 期号: 14, 页码: 7613-7618
作者:
Bao, Xichang
收藏
  |  
浏览/下载:36/0
  |  
提交时间:2015/11/02
efficient polymer solar cells
O-2 plasma processing V2O5
anode buffer layer
annealing-free
How to split a G-quadruplex for DNA detection: new insight into the formation of DNA split G-quadruplex
期刊论文
OAI收割
chemical science, 2015, 卷号: 6, 期号: 8, 页码: 4822-4827
作者:
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2016/05/03
STRAND DISPLACEMENT
LABEL-FREE
POTASSIUM-ION
LOGIC-CIRCUIT
JAK2 V617F
DNAZYME
PROBES
IDENTIFICATION
ACID
NANOCLUSTERS
Recent advances in synthesis, physical properties and applications of conducting polymer nanotubes and nanofibers
期刊论文
OAI收割
PROGRESS IN POLYMER SCIENCE, 2011, 卷号: 36, 期号: 10, 页码: 1415
Long, YZ
;
Li, MM
;
Gu, CZ
;
Wan, MX
;
Duvail, JL
;
Liu, ZW
;
Fan, ZY
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2013/09/24
CURRENT-VOLTAGE CHARACTERISTICS
LIGHT-EMITTING-DIODES
ASSEMBLED POLYANILINE NANOSTRUCTURES
ATOMIC-FORCE MICROSCOPY
TEMPLATE-FREE METHOD
I-V CHARACTERISTICS
ELECTRICAL-CONDUCTIVITY
POLYPYRROLE NANOTUBE
CHARGE-TRANSPORT
LOW-TEMPERATURE
Effect of interface on luminescence properties in ZnO/MgZnO heterostructures (EI CONFERENCE)
会议论文
OAI收割
Wei Z. P.
;
Lu Y. M.
;
Shen D. Z.
;
Wu C. X.
;
Zhang Z. Z.
;
Zhao D. X.
;
Zhang J. Y.
;
Fan X. W.
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2013/03/25
A set of ZnO/MgZnO heterostructures with well widths
Lw
varying from 2 to 20 nm has been grown by plasma-assisted molecular-beam epitaxy (P-MBE). We present a room-temperature (RT) study of the well-width-dependent photoluminescence (PL) spectra and carrier lifetimes in ZnO/MgZnO heterostructures. Bi-exponential process is seen at RT time-decay curves of the luminescence from the well layers. The fast process is from the recombination of the free exciton
while the slow process is attributing to the recombination of the localized exciton in the interface of ZnO and MgZnO. It is also confirmed from the PL peak shift of time-resolved PL spectra. With decreasing the well thickness
the fast process gradually increases and dominantly contributes to the PL spectrum due to the interface improvement. 2006 Elsevier B.V. All rights reserved.
Excitonic properties of vertically aligned ZnO nanotubes under high-density excitation (EI CONFERENCE)
会议论文
OAI收割
Lu Y. M.
;
Liang H. W.
;
Shen D. Z.
;
Zhang Z. Z.
;
Zhang J. Y.
;
Zhao D. X.
;
Liu Y. C.
;
Fan X. W.
收藏
  |  
浏览/下载:13/0
  |  
提交时间:2013/03/25
In this paper
highly oriented and vertically arranged ZnO nanotubes are prepared on Al2O3 (0 0 0 1) substrate without employing any metal catalysts by plasma-assisted molecular beam epitaxy. The photoluminescence (PL) spectra at room temperature are studied under high excitation densities. Under lower excitation density (60 kW/cm2)
PL spectrum shows that one strong free exciton emission (FE) locates at 3.306 eV. As the excitation density increases up to 200 kW/cm2
a new emission peak (Pn) located at low-energy side of FE is attributed to the spontaneous emission due to an exciton-exciton (Ex-E x) scattering process from two ground state excitons
where one exciton is recombined by emitting a photon and the other is scattered into the excited states of n=2
3
4.... Under excitation density of 300 kW/cm 2
the stimulated emission originating from Ex-E x scattering is obtained. When the excitation density is above 580 kW/cm2
the emission from electron-hole plasma is observed in low-energy side of the P band and indicates a typical superradiation recombination processes with increasing excitation density. 2006 Elsevier B.V. All rights reserved.
Formation and characteristics of quantum dots of wide band gap II-VI semiconductor (EI CONFERENCE)
会议论文
OAI收割
Fifth International Conference on Thin Film Physics and Applications, May 31, 2004 - June 2, 2004, Shanghai, China
Fan X. W.
;
Shan C. X.
;
Yang Y.
;
Zhang J. Y.
;
Liu Y. C.
;
Lu Y. M.
;
Shen D. Z.
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2013/03/25
CdSe and ZnCdSe quantum dots (QDs) were grown under Stranski-Krastanow (S-K) mode by low-pressure metalorganic chemical vapor deposition (LP-MOCVD). The formation process of CdSe QDs below critical thickness was observed by atomic force microscopy (AFM). The formation mechanism of CdSe QDs below the critical thickness was due to the effect of surface diffusion and strain release. ZnCdSe QDs were grown based on the calculated critical thickness. Two kinds of variations in the ZnCdSe QDs appeared over time
the Ostwald ripening process and dot formation process. ZnSeS dots were grown under Volmer-Weber (V-W) mode. With increasing the growth duration
the size of dots becomes larger and the density decreases
which is explained by virtue of the surface free energy.
Study on optical parts of MOEMS optical switch with low insertion loss (EI CONFERENCE)
会议论文
OAI收割
MEMS/MOEMS Technologies and Applications II, November 10, 2004 - November 12, 2004, Beijing, China
作者:
Wang W.
;
Wang L.
;
Wang L.
;
Wang L.
;
Chen W.
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2013/03/25
We study insertion losses of optical switch when the laser beam is propagating during the free space between two single mode fibers (SMFs) and the related assemblage challenges
Then a new packaging structure is developed for the hybrid-integration of free-space MOEMS (micro-opto-electro-mechanical systems) chip with a silicon micromachined submount to improve alignment accuracy. The submount is designed to accommodate various free-space MOEMS chips with minimal active optical alignment
thus reducing the packaging cost. The silicon submount has a central recess to place the MOEMS chip in
sixteen V-grooves for optical fibers
and micropits for micro ball lenses
all bulk micromachined at the same time by a single anisotropic wet etching step. A corner compensation technique is employed to prevent erosion of the convex corners
where different geometries meet. Through this assembling method
the fiber
micro ball lens can be aligned preciously thus reduced lateral and angular misalignment between them. Then total insertion losses can be decreased.