中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共9条,第1-9条 帮助

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Transparent Ce:GdYAG ceramic color converters for high-brightness white LEDs and LDs 期刊论文  OAI收割
OPTICAL MATERIALS, 2019, 卷号: 88, 页码: 97
作者:  
Liu, Xin;  Zhou, Heyu;  Hu, Zewang;  Chen, Xiaopu;  Shi, Yun
  |  收藏  |  浏览/下载:53/0  |  提交时间:2019/12/26
Solid-State Fluorescent Carbon Dots with Aggregation-Induced Yellow Emission for White Light-Emitting Diodes with High Luminous Efficiencies 期刊论文  OAI收割
Acs Applied Materials & Interfaces, 2019, 卷号: 11, 期号: 27, 页码: 24395-24403
作者:  
Y.Q.Zhang;  P.Zhuo;  H.Yin;  Y.Fan;  J.H.Zhang
  |  收藏  |  浏览/下载:35/0  |  提交时间:2020/08/24
Morphology-dependent electroluminescence in poly(N-vinyl carbazole)-based multi-component single emissive layer polymer light-emitting diodes 期刊论文  OAI收割
organic electronics, 2013, 卷号: 14, 期号: 1, 页码: 55-61
Liu LH; Zhang BH; Xie ZY; Ding JQ; Wang LX
收藏  |  浏览/下载:17/0  |  提交时间:2014/04/18
Algainp led with surface structure of two-dimensional photonic crystal 期刊论文  iSwitch采集
Acta physica sinica, 2010, 卷号: 59, 期号: 11, 页码: 8083-8087
作者:  
Chen Yi-Xin;  Zheng Wan-Hua;  Chen Wei;  Chen Liang-Hui;  Tang Yi-Dan
收藏  |  浏览/下载:31/0  |  提交时间:2019/05/12
Undoped, red organic light-emitting diodes based on a N,N,N ',N '-tetraphenylbenzidine (TPD) derivative as red emitter with a triphenylamine derivative as hole-transporting layer 期刊论文  OAI收割
DYES AND PIGMENTS, 2010, 卷号: 84, 期号: 2, 页码: 203-207
作者:  
Cao, Xingbo;  Wen, Yugeng;  Guo, Yunlong;  Yu, Gui;  Liu, Yunqi
  |  收藏  |  浏览/下载:15/0  |  提交时间:2019/04/09
Undoped, red organic light-emitting diodes based on a n,n,n ',n '-tetraphenylbenzidine (tpd) derivative as red emitter with a triphenylamine derivative as hole-transporting layer 期刊论文  iSwitch采集
Dyes and pigments, 2010, 卷号: 84, 期号: 2, 页码: 203-207
作者:  
Cao, Xingbo;  Wen, Yugeng;  Guo, Yunlong;  Yu, Gui;  Liu, Yunqi
收藏  |  浏览/下载:18/0  |  提交时间:2019/05/10
AlGaInP LED with surface structure of two-dimensional photonic crystal 期刊论文  OAI收割
acta physica sinica, 2010, 卷号: 59, 期号: 11, 页码: 8083-8087
Chen YX (Chen Yi-Xin); Zheng WH (Zheng Wan-Hua); Chen W (Chen Wei); Chen LH (Chen Liang-Hui); Tang YD (Tang Yi-Dan); Shen GD (Shen Guang-Di)
收藏  |  浏览/下载:41/0  |  提交时间:2010/12/27
High power diode laser with beam coupling (EI CONFERENCE) 会议论文  OAI收割
Optoelectronic Materials and Devices III, October 27, 2008 - October 30, 2008, Hangzhou, China
作者:  
Wang L.;  Liu Y.;  Wang L.;  Liu Y.;  Liu Y.
收藏  |  浏览/下载:61/0  |  提交时间:2013/03/25
As the increasing applications of the semiconductor lasers in the laser processing  the single 2-D stack optic-power density has not satisfied the actual requirements. It demands to couple several diode laser stack beams to one to improve the brightness  and it becomes the central issue to adopt the appropriate beam coupling technology which would offer high quality and high efficiency. In this paper  it mainly introduces the beam shaping and the technology of spatial coupling  polarization coupling  and wavelength coupling. The coupling key elements are presented and indicated. Finally  the development of the diode laser on beam coupling in our country fell behind through analyzing the statement of the world. Our lab is studying on polarization coupling and wavelength coupling. We gain some results by phase  which the polarization coupling efficiency can achieve 90% for two LD stacks with seven bars whose luminous wavelength is 975nm and980nm.By two 808nm diode laser coupling  the efficiency of 60% can be achieved after focusing to the beam size of 22mm2. 2008 SPIE.  
The application of auto-controlled liquid crystal light valve arrays to photolithography shutter (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Chen Y.
收藏  |  浏览/下载:15/0  |  提交时间:2013/03/25
Photolithography shutter is usually used to control exposure in order to obtain patterns of code disc and metrology grating which are the core components of optical shaft encoder. But perforated film as photolithography shutter has many disadvantages such as taking too long time to perforate  easily making wrong code  lower reusable ratio. Mathematical models for resist property  luminous efficiency and exposure have been established by deducing their relations for avoiding the disadvantages  which provides the theory of using liquid crystal light valve (LCLV) replacing proforated film. Based on operating principles of LCLV and control theories of photolithography shutter  the principle diagram of control circuit of LCLV arrays has been designed according to theirs control principles. In the control system  LCLV arrays as photolithography shutter are realized by adopting DS75451 to drive them and using AT89C51 chip to control them. By photolithographic experiment  the patterns of code disc are good  the edges of lines are vertical  it indicates LCLV arrays as photolithography shutter may control exposure and light passing accords with the intending requires. It proves using LCLV arrays replacing perforated film as photolithography shutter is feasible completely.