http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Fabrication of blue top-emitting organic light-emitting devices with highly saturated color
Chin H.Chen,Chung-Chun Lee,Andrew T.Hu,Shih Feng Hsu 한국물리학회 2004 Current Applied Physics Vol.4 No.6
Blue top-emitting organic light-emitting devices (TOLEDs) with highly saturated color were developed by microcavity eect. Thedevice structure studied was glass/reective silver/indium-tin oxide (ITO)/organic electroluminescent stack/semi-transparent cathode(calcium/silver). By changing the thicknesses of ITO and organic layers in the microcavity structure device doped withp-bis(p-N,N-di-phenyl-aminostyryl)benzene (DSA-ph), highly saturated color with Commission Internationale de L’Eclairage chromaticitycoordinates (CIEx;y) of (0.14, 0.08) was obtained.
Effects of substrate treatment on the electroluminescence performance of flexible OLEDs
Chin H.Chen,Shih Feng Hsu,Shiao Wen Hwang,Shih-Nan Lee 한국물리학회 2004 Current Applied Physics Vol.4 No.6
Electroluminescence (EL) performance of exible organic light-emitting device (FOLED) has been found to be highly dependentupon the morphology of the surface of the indium thin oxide (ITO)/plastic substrate as well as the patterning and processingconditions of the substrate. We will present evidence showing that luminance eciency of FOLED can be greatly improved bypretreatment. Surface analysis of the ITO/PET by means of atomic force microscope (AFM) and optical microscope will becompared with that of the ITO/glass and the inuence of exible OLEDs substrate treatment by various methods on EL perfor-mance will also be discussed.
DISCOVERY OF AN X-RAY-EMITTING CONTACT BINARY SYSTEM 2MASS J11201034−2201340
Hu, Chin-Ping,Yang, Ting-Chang,Chou, Yi,Liu, L.,Qian, S.-B.,Hui, C. Y.,Kong, Albert K. H.,Lin, L. C. C.,Tam, P. H. T.,Li, K. L.,Ngeow, Chow-Choong,Chen, W. P.,Ip, Wing-Huen American Astronomical Society 2016 The Astronomical journal Vol.151 No.6
<P>We report the detection of orbital modulation, a model solution, and the X-ray properties of a newly discovered contact binary, Two Micron All Sky Survey (2MASS) J11201034-2201340. We serendipitously found this X-ray point source outside the error ellipse when searching for possible X-ray counterparts of 7-ray millisecond pulsars among the unidentified objects detected by the Fermi Gamma-ray Space Telescope. The optical counterpart of the X-ray source (unrelated to the 7-ray source) was then identified using archival databases. The long-term Catalina Real-Time Transient Survey detected a precise signal with a period of P = 0.28876208 (56) days. A follow-up observation made by the Super Light Telescope of Lulin Observatory revealed the binary nature of the object. Utilizing archived photometric data of multi-band surveys, we construct the spectral energy distribution (SED), which is well fit by a K2V spectral template. The fitting result of the orbital profile using the Wilson Devinney code suggests that 2MASS J11201034-2201340 is a short-period A-type contact binary and the more massive component has a cool spot. The X-ray emission was first noted in observations made by Swift, and then further confirmed and characterized by an XMM-Newton observation. The X-ray spectrum can be described by a power law or thermal Bremsstrahlung. Unfortunately, we could not observe significant X-ray orbital modulation. Finally, according to the SED, this system is estimated to be 690 pc from Earth with a calculated X-ray intensity of (0.7 - 1.5) x 10(30) erg s(-1), which is in the expected range of an X-ray emitting contact binary.</P>
Current Scaling and Electron Heating in a GaN/AlGaN Two-Dimensional Electron System
Kuang Yao Chen,Li-Hung Lin,Chin-An Chang,Chi-Te Liang,N. C. Chen,P. H. Chang,Wen-Jang Shiue,Zhi-Hao Sun 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.50 No.6
A GaN/AlGaN two-dimensional electron system (2DES) has been prepared on a Si substrate, and the electron heating effect in the 2DES has been studied experimentally by using the resistance of the 2DES as a self-thermometer. The relation $T_e$ $\sim$ $I^{1.42}$ was obtained, which is in contrast to $T_e$ $\sim$ $I^{0.5}$ in the spin-split resistivity peaks in a GaAs/AlGaAs 2DES. A possible reason for this is discussed
An Optimized Iterative Semantic Compression Algorithm And Parallel Processing for Large Scale Data
( Ran Jin ),( Gang Chen ),( Anthony K H Tung ),( Lidan Shou ),( Beng Chin Ooi ) 한국인터넷정보학회 2018 KSII Transactions on Internet and Information Syst Vol.12 No.6
With the continuous growth of data size and the use of compression technology, data reduction has great research value and practical significance. Aiming at the shortcomings of the existing semantic compression algorithm, this paper is based on the analysis of ItCompress algorithm, and designs a method of bidirectional order selection based on interval partitioning, which named An Optimized Iterative Semantic Compression Algorithm (Optimized ItCompress Algorithm). In order to further improve the speed of the algorithm, we propose a parallel optimization iterative semantic compression algorithm using GPU (POICAG) and an optimized iterative semantic compression algorithm using Spark (DOICAS). A lot of valid experiments are carried out on four kinds of datasets, which fully verified the efficiency of the proposed algorithm.
Jian-Zhe Huang,Li-Hung Lin,Chin-An Chang,Chi-Te Liang,Kuang Yao Chen,Kui-Ming Chen,N. C. Chen,P. H. Chang,Shiou-Shian Han,Zhi-Hao Sun 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.50 No.3
We report on experimental studies of an Al$_{0.15}$Ga$_{0.85}$N/GaN high-electron-mobility transistor structure grown on a $p$-type Si (111) substrate. This structure is compatible with complementary metal-oxide-semiconductor (CMOS) technology and, thus, has great potential device applications. The low-temperature magnetoresistivity shows a parabolic dependence on the applied perpendicular magnetic field. This effect is ascribed to electron-electron interaction (EEI) effects in a weakly-disordered two-dimensional system. Our experimental results agree with the EEI theory when the correction term in the ballistic region has been subtracted.
Development of highly stable organic electroluminescent devices with a doped co-host emitter system
Tswen-Hsin Liu,Chung-Yeh Iou,Chin H. Chen 한국물리학회 2005 Current Applied Physics Vol.5 No.3
Ecient red organic light-emitting devices based on the uorescent dye ‘‘4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetra-methyljulolidyl-9-enyl)-4H-pyran (DCJTB) doped in co-host emitter (CHE) systems of rubrene/tris(8-hydroxyquinolinato)alumi-num (Alq3) [60/40] and of 9,10-di(2-naphthyl)anthracene (ADN)/Alq3 [60/40] which achieved a luminance eciency of 4.25.5 cd/Aat 20 mA/cm2 with Commission Internationale d’Eclairage coordinates of [0.64,0.35][0.62,0.37]. At high rubrene or ADN con-centration (>60%), this DCJTB doped CHE system has the advantage of alleviating the current-induced uorescence quenchingproblem often encountered in red organic electroluminescence (EL) devices and greatly improves the EL eciency over a wide rangeof drive current conditions..
Electrical Measurements of an AlGaN/GaN High-electron-mobility Transistor Structure Grown on Si
Zhi-Yao Zhang,Shun-Tsung Lo,Li-Hung Lin,Kuang Yao Chen,J. Z. Huang,Zhi-Hao Sun,C.-T. Liang,N. C. Chen,Chin-An Chang,P. H. Chang 한국물리학회 2012 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.61 No.9
We report on magnetotransport results for an Al<sub>0.15</sub>Ga<sub>0.85</sub>N/GaN high-electron-mobility-transistor structure grown on a p-type Si (111) substrate. Our results show that there exists an approximately temperature (<i>T</i>)-independent point, which could be ascribed to a direct transition from a weak insulator to a high Landau level filling factor quantum Hall state, exists in the longitudinal resistivity ρ<sub>xx</sub>. The Hall resistivity decreases with increasing <i>T</i>, compelling experimental evidence for electron-electron interaction effects in a weakly-disordered two-dimensional (2D) system. We find that electron-electron interaction effects can be estimated and eliminated, giving rise to a corrected nominally temperature-independent Hall slope. By fitting the low-field magnetotransport data to conventional 2D weak localization theory, we find that the dephasing rate 1/τ<sub>φ</sub> is proportional to <i>T</i>. Moreover, 1/τ<sub>φ</sub> is finite as <i>T</i> → 0, evidence for zero-temperature dephasing in our system.
Cho, Whirang,Wu, Jinghang,Shim, Bong Sup,Kuan, Wei-Fan,Mastroianni, Sarah E.,Young, Wen-Shiue,Kuo, Chin-Chen,Epps, III, Thomas H.,Martin, David C. The Royal Society of Chemistry 2015 Physical chemistry chemical physics Vol.17 No.7
<P>We describe the synthesis and characterization of bicontinuous cubic poly(3,4-ethylenedioxythiophene) (PEDOT) conducting polymer gels prepared within lyotropic cubic poly(oxyethylene)<SUB>10</SUB> nonylphenol ether (NP-10) templates with <I>Ia</I>3&cmb.macr;<I>d</I> (gyroid, GYR) symmetry. The chemical polymerization of EDOT monomer in the hydrophobic channels of the NP-10 GYR phase was initiated by AgNO<SUB>3</SUB>, a mild oxidant that is activated when exposed to ultraviolet (UV) radiation. The morphology and physical properties of the resulting PEDOT gels were examined as a function of temperature and frequency using optical and electron microscopy, small-angle X-ray scattering (SAXS), dynamic mechanical spectroscopy, and electrochemical impedance spectroscopy (EIS). Microscopy and SAXS results showed that the PEDOT gels remained ordered and stable after the UV-initiated chemical polymerization, confirming the successful templated-synthesis of PEDOT in bicontinuous GYR nanostructures. In comparison to unpolymerized 3,4-ethylenedioxythiophene (EDOT) gel phases, the PEDOT structures had a higher storage modulus, presumably due to the formation of semi-rigid PEDOT-rich nanochannels. Additionally, the storage modulus (<I>G</I>′) for PEDOT gels decreased only modestly with increasing temperature, from ∼1.2 × 10<SUP>5</SUP> Pa (10 °C) to ∼7 × 10<SUP>4</SUP> Pa (40 °C), whereas <I>G</I>′ for the NP-10 and EDOT gels decreased dramatically, from ∼5.0 × 10<SUP>4</SUP> Pa (10 °C) to ∼1.5 × 10<SUP>2</SUP> Pa (40 °C). EIS revealed that the impedance of the PEDOT gels was smaller than the impedance of EDOT gels at both high frequencies (PEDOT ∼10<SUP>2</SUP>Ω and EDOT 2–3 × 10<SUP>4</SUP>Ω at 10<SUP>5</SUP> Hz) and low frequencies (PEDOT 10<SUP>3</SUP>–10<SUP>5</SUP>Ω and EDOT ∼5 × 10<SUP>5</SUP>Ω at 10<SUP>−1</SUP> Hz). These results indicated that PEDOT gels were highly ordered, mechanically stable and electrically conductive, and thus should be of interest for applications for which such properties are important, including low impedance and compliant coatings for biomedical electrodes.</P> <P>Graphic Abstract</P><P>The successful templated-synthesis of PEDOT in bicontinuous GYR nanostructures: highly ordered, mechanically stable and electrically conductive. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c4cp04426f'> </P>