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背反射     
相关语句
  back reflection
     The conversion efficiency of solar cells,fabricated with 1.0 μm thick film but without ZnO back reflection,was found to be 6.6%.
     材料应用于电池中,制备出了效率达6.6%的微晶硅电池,没有ZnO背反射电极,而且电池的厚度仅为1.0μm。
短句来源
  back surface reflector
     The Research on Dye-sensitized Solar Cells with Back Surface Reflector for Enhancing Light Absorption
     用背反射提高染料敏化太阳电池光吸收的研究
短句来源
  back surface reflection
     To solve the problem of the poor absorption of dyes at the longer wavelength region,dye-sensitized solar cells(DSSC) with back surface reflection was introduced to enhance light absorption.
     介绍了一种提高染料敏化太阳电池光吸收的背反射结构,以解决染料在长波范围吸光能力差的缺点。
短句来源
  back reflector
     Microcrystalline silicon solar cells with conversion efficiency up to 7^1% were fabricated. The structure of solar cells was glass/ZnO/p(μc-Si:H)/i(μc-Si:H)/n(a-Si:H/Al). There was no Zno back reflector and the thickness of solar cells was only 1^2μm.
     应用在电池的有源层中,制备出了效率达7·1%的单结微晶硅太阳电池,电池的结构是glass/ZnO/p(μc-SiH)/i(μc-SiH)/n(a-SiH/Al),没有ZnO背反射电极,有源层的厚度仅为1·2μm.
短句来源
     Microcrystalline silicon solar cells with convertion efficiency 7.1% was fabricated by VHF-PECVD. There was no ZnO back reflector and thickness of solar cell was only 1.2μm.
     通过优化工艺条件制备出了效率达7.1%的单结微晶硅太阳电池,电池厚度仅为1.2μm,且没有ZnO背反射电极.
短句来源
     a-Si/μC-Si tandem solar cells were prepared with RF-PECVD for top cells and VHF-PECVD for bottom cells. The thickness and current match for sub-cells were optimized. The effect of ZnO/Ag back reflector was also investigated.
     采用射频等离子体增强化学气相沉积(RF-PECVD)技术制备非晶硅顶电池,采用甚高频等离子体增强化学气相沉积(VHF-PECVD)技术制备微晶硅底电池,初步优化研究了薄膜非晶硅/微晶硅叠层太阳电池顶电池与底电池的本征吸收层厚度匹配与电池电流匹配,以及氧化锌/金属复合背反射电极对电池的作用。
短句来源
     In addition, short circuit current (J_ sc ) of solar cells was greatly reduced, as a result, conversion efficiency of solar cells were improved when ZnO/Ag/Al back reflector were incorporated into solar cells.
     另外,ZnO/Ag/Al背反射电极能明显提高电池的短路电流密度,进而也提高了电池的光电转换效率.
短句来源

 

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      back reflection
    Characteristics of the back reflection of sound by a school of fish are calculated for various angles of irradiation, variable number of fish in the school, and various velocities of fish with respect to each other.
          
    Diffraction of X rays at a Bragg angle of π/2 (Back reflection) with consideration of multiwave effects
          
    The role of back reflection of radiation in the spectral regions with the negative dielectric constant was clarified.
          
    Minimization of the back reflection from elements of the optical discriminator by optimizing their arrangement is proposed to improve lasing parameters of the frequency-stabilized double-mode lasers.
          
    Here back reflection divergent beam X-ray interference patterns (Pseudo-KOSSEL technique) were taken from polycrystalline specimens in the SEM and compared with corresponding lattice source interference (LSI) patterns (KOSSEL technique).
          
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      back surface reflector
    A high photogeneration of 38?mA/cm2 from a film of thickness Wf=4?μm is possible due to a detached Al-back surface reflector that has an effective reflectance of 99.7% at 1250?nm.
          
      其他


    The orientation dependence of the tensile and stress rupture behavior of a directionally-solidified superalloy, DZ5, has been studied.The tests were performed at temperatures 700℃ and 950℃.The real orientations of specimens were detemined by the Laue back-reflection method,The results indicated that the tensile strength and the stress rupture life at the temperature 700℃ were affected strongly by the orientation, however there appears no considerable effect on those properties at 950℃.As the specimen orientation...

    The orientation dependence of the tensile and stress rupture behavior of a directionally-solidified superalloy, DZ5, has been studied.The tests were performed at temperatures 700℃ and 950℃.The real orientations of specimens were detemined by the Laue back-reflection method,The results indicated that the tensile strength and the stress rupture life at the temperature 700℃ were affected strongly by the orientation, however there appears no considerable effect on those properties at 950℃.As the specimen orientation deviated from the solidica-tion direction up to 20°, the tensile strength and the stress rupture life at 700℃ were reduced dramatically. The orientation dependence can be explained success fully by schmid's law and the mechanism of the cross-slip strengthening.And the fractography analysis was made by optical and electron scanning microscope.

    本文研究了定向凝固镍基高温合金DZ5的高温瞬拉及持久断裂特性之晶体取向关系。试验于700、950℃两种温度条件下进行。用背反射劳埃法测定了试样拉伸轴偏离柱晶凝固方向〈100〉的真实偏角。结果表明,在700℃,瞬拉强度及持久寿命有明显取向关系。在偏角20°之内,上述性能急剧下降;而在950℃,尚未发现明显取向关系。上述取向关系用Schmid规律和交滑移强化机理得到合理解释。光学及电子扫描断口分析表明,随柱晶偏角增大,断裂特征有明显变化。

    A new model Scanning Electron Microscope was developed recentlyon the basis of the first Chinese DX-3 SEM, which has been placed on the marketsince 1975. The resolution of this new model DX-5 is 60A for SE image. It isequipped with a variety of video signal processing devices. The high voltage sourcesupplies a maximum acceleration voltage of 30kV, and the Wehnelt bias, is contro-lled photoelectrically. The specimen chamber is capable of accepting a dual fullyfocused linear-type crystal spectrometer with optical...

    A new model Scanning Electron Microscope was developed recentlyon the basis of the first Chinese DX-3 SEM, which has been placed on the marketsince 1975. The resolution of this new model DX-5 is 60A for SE image. It isequipped with a variety of video signal processing devices. The high voltage sourcesupplies a maximum acceleration voltage of 30kV, and the Wehnelt bias, is contro-lled photoelectrically. The specimen chamber is capable of accepting a dual fullyfocused linear-type crystal spectrometer with optical microscope. The size of theelectron optical column is much smaller than the old model DX-3. A vacuum lineartube with three apertures goes through the bores of the lenses. The specimenstage has five degrees of freedom, and the whole column is mounted on airbuffers to minimize vibration problem. In this paper the performances andcharacteristics of this SEM are given. Some aspects of the electron optical systemdesign, such as reduction of objective abberation, calculation of magnetic circuitusing our coaxial-cylinder approximate model, Schlesinger deflection coil of semi-concentrated distribution, centering of electron gun with a single set deflecting aredescribed. Finally, some difficuit problems of tunning up this instrument to achievehigh performances are briefly discussed.

    本文主要叙述我厂最近试制成的DX-5型扫描电镜的性能,电子光学设计方面的一些考虑。该仪器的二次电子象的分辨率为60A~70A,有较完善的视频信号处理系统,并可配两道X光分光光谱仪一个能谱仪和一个光学显微镜。该仪器是非对称物镜,用通常的对称透镜的计算参数加以修正得到正确的象差系数。物镜磁路用近似场的假设计算。扫描线圈的设计主要在大偏转范围内给出均匀场以减少低放大倍数下的畸变。为了有效的收集二次电子,在样品附近放置一个小电极加上15V~30V的电压。一个意外的噪音来源来之于电子枪附近的背反射电子通过真空管道达探测器。为了实现电子束的合轴,在电子束交叉点附近放置一个电磁对中线圈,加上瓷瓶的精确定位可以方便合轴。文章也叙述了在调试中排除了一些问题后达到60A的分辨率。

    Textured BSFR (back surface field combined with back surface reflector)high efficiency silicon solar cells have been developed in August 1981.Cells were tested at AM0 100mW/cm2 (test temperature 300K),and yield results that the highest efficiency achieve 15.3%.This paper reported the development and test results of cells,and discussed the effect of back surface field,back surface reflector and textured structure etc.on cell perfor-mace.The paper emphasizes the effects of the heavy doping on further enhancement...

    Textured BSFR (back surface field combined with back surface reflector)high efficiency silicon solar cells have been developed in August 1981.Cells were tested at AM0 100mW/cm2 (test temperature 300K),and yield results that the highest efficiency achieve 15.3%.This paper reported the development and test results of cells,and discussed the effect of back surface field,back surface reflector and textured structure etc.on cell perfor-mace.The paper emphasizes the effects of the heavy doping on further enhancement of cell efficiency,and suggests several assumptions that increase open circuit voltage.

    1981年8月,我们研制成功绒面BSFR(背表面场和背反射器结合)高效率硅太阳电池,其最高效率达15.3%(AM0,300K)。 本文报道了电池的研制情况及测试结果,讨论了背表面场、背反射器以及绒面结构等对电池性能的影响,着重分析了掺杂对进一步提高电池效率的影响。

     
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