中国科学院机构知识库网格系统: 检索

Configuration of the active region for the Ge-on-Si photodetector based on carrier mobility 期刊论文 OAI收割
FRONTIERS IN PHYSICS, 2023, 卷号: 11
作者: Chang, Chang; Xie, Xiaoping; Li, Tiantian; Cui, Jishi

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收藏 | 浏览/下载：22/0 | 提交时间：2023/08/01

silicon photonics Ge-on-Si photodetector PIN junction carrier mobility bandwidth responsivity

The dual-injection Ge-on-Si photodetectors with high saturation power by optimizing light field distribution 期刊论文 OAI收割
Optics Communications, 2021, 卷号: 480
作者: Cui, Jishi; Li, Tiantian; Yang, Fenghe; Cui, Wenjing; Chen, Hongmin

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收藏 | 浏览/下载：151/0 | 提交时间：2020/10/27

Ge-on-Si photodetector Silicon photonics Evanescent wave coupling Saturated optical power

High-Performance Microring Resonator Ge-on-Si Photodetectors by Optimizing Absorption Layer Length 期刊论文 OAI收割
IEEE PHOTONICS JOURNAL, 2020, 卷号: 12, 期号: 4
作者: Cui, Jishi; Li, Tiantian; Chen, Hongmin; Cui, Wenjing

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收藏 | 浏览/下载：51/0 | 提交时间：2020/09/04

Ge-on-Si photodetectors silicon photonics Integrated optoelectronics

Micro-electro-mechanical systems capacitive ultrasonic transducer with a higher electromechanical coupling coefficient 期刊论文 OAI收割
Micro & Nano Letters, 2015, 卷号: 10, 期号: 10, 页码: 4
作者: Miao, J(苗静); Shen, WJ(沈文江); He, CD; Xue, CY

收藏 | 浏览/下载：88/0 | 提交时间：2015/12/31

silicon elemental semiconductors silicon-on-insulator wafer bonding electromechanical effects ultrasonic transducers capacitive transducers micromechanical devices micromachining vibrations membranes finite element analysis reliability capacitance electromechanical coupling coefficient capacitive micromachined ultrasonic transducer impedance matching propagation medium microelectromechanical system capacitive ultrasonic transducer silicon on insulator wafer bonding optimum geometric dimensions membrane mechanical vibration electrical characteristics finite-element analysis operation mode device safety device reliability equivalent stress operation-collapse voltage bottom electrodes glass substrate surface parallel parasitic capacitance Si SiO2

Luminescence and energy transfer in Ca3Sc2Si 3O12:Ce3+,Mn2+ white LED phosphors (EI CONFERENCE) 会议论文 OAI收割
作者: Luo Y.; Zhang J.; Zhang J.; Zhang J.; Wang X.

收藏 | 浏览/下载：37/0 | 提交时间：2013/03/25

Expanded emission spectra ranging from green to red are reported in Ca 3Sc2Si3O12 (CSS):Ce 3+ Mn2+ silicate garnets. Mn2+ may occupy Ca2 site (Mn2+(I)) to generate a yellow emission band at 574 nm or Sc3 site (Mn2+(II)) with red emission band at 680 nm. Efficient energy transfers from the green emitting Ce3+ to both Mn2+(I) and Mn2+(II) occur upon blue excitation into Ce3+. Concentration dependence of Mn2+ emission is analyzed based on Ce3+-Mn2+ energy transfer steady state rate equations and fluorescence lifetimes. Energy transfer efficiency (nT) and rate (W) are calculated with values as high as 45% and 14.01106 s-1 respectively. 2011 Elsevier B.V.

Tribological properties of Mos2 thin coatings under liquid lubricating (EI CONFERENCE) 会议论文 OAI收割
2nd International Conference on Innovation Manufacturing and Engineering Management, IMEM 2012, December 14, 2012 - December 16, 2012, Chongqing, China
Bai Y.; Cao P.

收藏 | 浏览/下载：33/0 | 提交时间：2013/03/25

The objective of this study is to investigate the effect of solid and liquid lubrication on friction and wear performance of selected solid lubricating coatings comparative experiments have been carried out on magnetron sputtered MoS2 coatings against Si3N4 ball using a ball-on-disk tribo-tester under the conditions of room temperature and different lubrication. Surface morphology of coatings were investigated by atom force microscope (AFM) and friction coefficient (COF) and wear rate of solid films were also be analyzed. It was shown that the friction is greatly reduced when the solid film is lubricated with oil and grease simultaneously in comparison with single-lubricant lubrication at the start-up or under boundary lubrication conditions. Liquid lubrication causes a dramatic decrease of the wear-ability of the MoS2 coatings. The effect of oil lubrication to the deterioration of wear resistance of MoS2 film was even worse than lubrication grease. (2013) Trans Tech Publications Switzerland.

Depth-dependent etch pit density in Ge epilayer on Si substrate with a self-patterned Ge coalescence island template 期刊论文 OAI收割
THIN SOLID FILMS, 2012, 卷号: 520, 期号: 6, 页码: 2307-2310
Huang, SH; Li, C; Zhou, ZW; Chen, CZ; Zheng, YY; Huang, W; Lai, HK; Chen, SY

收藏 | 浏览/下载：18/0 | 提交时间：2013/04/17

Ge-on-Si Dislocation density Ge coalescence island template

The novel facet coating technology for 808nm semiconductor laser (EI CONFERENCE) 会议论文 OAI收割
2010 Academic Symposium on Optoelectronics and Microelectronics Technology and 10th Chinese-Russian Symposium on Laser Physics and Laser Technology, RCSLPLT/ASOT 2010, July 28, 2010 - August 1, 2010, Harbin, China
作者: Liu Y.; Qin L.; Li Z.; Li Z.; Wang L.

收藏 | 浏览/下载：21/0 | 提交时间：2013/03/25

A novel facet coating technology is presented by studying catastrophic optical mirror damage mechanism of semiconductor laser. In this technology semiconductor laser are cleaved in the air and the surface oxide layer is removed with a low energy ion source flowed immediately by coating the facet with thin ZnSe layer of 20 nm. The function of this layer is to protect semiconductor laser facet and prevent impurity particles diffusing to the facet. Finally the facet is coated with oxidative optical film. The test results show that the output power of the semiconductor laser with the ZnSe coated layer is 13% higher than that of the Si coated layer and 47% higher than that of the oxide coated film. The device coated oxide film is damaged when current is 4.5 A and the device coated with Si layer is damaged when current is 5.5 A the final failed device is coated with ZnSe layer. In conclusion the method of coating ZnSe layer on the semiconductor laser facet can prevent effectively the catastrophic optical mirror damage and increase the output power of semiconductor lasers. 2010 IEEE.

Dispersion characteristics of nanometer-scaled silicon rib waveguides 期刊论文 OAI收割
chinese optics letters, CHINESE OPTICS LETTERS, 2010, 2010, 卷号: 8, 8, 期号: 5, 页码: 485-489, 485-489
作者: Jia L (Jia Lianxi); Geng MM (Geng Minming); Zhang L (Zhang Lei); Yang L (Yang Lin); Chen P (Chen Ping)

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收藏 | 浏览/下载：202/31 | 提交时间：2010/06/05

GROUP-VELOCITY DISPERSION Group-velocity Dispersion Wavelength Conversion On-insulator Photonic Wires Si Propagation Generation Roughness Index Chip WAVELENGTH CONVERSION ON-INSULATOR PHOTONIC WIRES SI PROPAGATION GENERATION ROUGHNESS INDEX CHIP

Signal integrity simulation design of image processor PCB combined with electromagnetic compatibility analyses based on altium designer 6 (EI CONFERENCE) 会议论文 OAI收割
2009 4th IEEE Conference on Industrial Electronics and Applications, ICIEA 2009, May 25, 2009 - May 27, 2009, Xi'an, China
Cheng Y. Q.; Zhu M.; Ge W.

收藏 | 浏览/下载：28/0 | 提交时间：2013/03/25

With the coming of the high-speed digital system age signal integrity (SI) and electromagnetic compatibility (EMC) should not be ignored any more. In this paper based on basic theories of SI and EMC the high-speed digital design method for PCB using the SI simulation tool of Altium Designer 6 and EMC analyses is introduced and the impedance control power integrity (PI) design and SI (reflections and crosstalk) design of a piece of image processor PCB are demonstrated in detail. The simulation results show that the impedance control is perfect reasonable termination can improve the waveforms and control the reflections and crosstalk. 2009 IEEE.