共查询到20条相似文献，搜索用时 171 毫秒
1.
采用离子溅射法制备金薄膜,研究了不同厚度金薄膜的光学及电学性能.结果表明:金薄膜透光性随着厚度的增加显著减小,电阻率随着厚度的增加而减小,在薄膜厚度为20 nm时,电阻率小,透光性较高,适合作透明电极. 相似文献
2.
《河南职业技术师范学院学报(职业教育版)》2014,(6)
采用离子溅射法制备金薄膜,研究了不同厚度金薄膜的光学及电学性能.结果表明:金薄膜透光性随着厚度的增加显著减小,电阻率随着厚度的增加而减小,在薄膜厚度为20 nm时,电阻率小,透光性较高,适合作透明电极. 相似文献
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《赣南师范学院学报》2022,(3):36-39
采用磁控溅射法,以普通载玻片为基底,制备了不同厚度的金属钛薄膜,在添加光栅掩模版后,制备了钛薄膜光栅。采用控制变量法,重点研究了不同溅射时间(10 min、15 min、20 min、30 min、40 min、50 min)对金属钛薄膜厚度、透过率、电阻率的影响,并测量了所制备的钛薄膜光栅的光栅常数。结果表明,增加溅射时间,在载玻片表面制备的金属钛薄膜的厚度也呈现出增加的趋势。但金属钛薄膜的透过率和电阻率却呈现现相反的趋势,即随着溅射时间的增加而减小;采用分光光度计测量薄膜光栅的光栅常数为0.168 mm. 相似文献
4.
详细介绍了使用椭偏仪测定薄膜的光学常数的原理,采用溶胶一凝胶法在普通载玻片上制备了均匀透明的TiO2薄膜,借助椭偏仪测量了薄膜的光学特性． 相似文献
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《洛阳师范学院学报》2017,(2):33-36
采用射频磁控溅射技术,在常温状态下在玻璃衬底上制备了Al掺杂ZnO透明导电薄膜.利用XRD和AFM分别对薄膜的晶体结构和表面微观形貌进行了表征,利用紫外-可见分光光度计和霍尔效应测试仪对薄膜的光电性能进行了测试,并分析讨论了不同溅射气压对Al掺杂ZnO薄膜结构、形貌和光电性能的影响.结果表明,在本实验条件下制备的薄膜均为良好的c轴择优取向;在可见光范围内样品的平均透过率都高于85%;在溅射气压为1.2Pa时,薄膜的结晶度、电阻率和透过率都达到了最佳值. 相似文献
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《赣南师范学院学报》2021,(6):30-34
为了研究溅射电流对磁控溅射沉积钛薄膜光、电学性能的影响,在其它工艺参数相同的情况下改变溅射电流(0.3 A～0.8 A)制备了6组薄膜样品,采用四探针电阻测试仪测量样品的电阻率,用紫外可见分光光度计测量样品的透射率.同时,利用磁控溅射技术成功制取钛薄膜光栅,采用读数显微镜测量光栅常量.研究表明:钛薄膜电阻率随溅射电流的增大而减小,最小电阻率为3.034 3Ω·cm;透射率随溅射电流的增大先减小后增大,最大透射率约为99%(对应溅射电流0.3 A),最小透射率约为0.03%(对应溅射电流0.7 A);测得钛薄膜光栅的光栅常量为(0.170 1±0.000 7)mm. 相似文献
9.
采用直流脉冲磁控溅射方法在非晶硅薄膜上制备AZO背反电极,比较不同制备参数对透过率及效率的影响。采用优化参数,得到效率增加了0．8％的非晶硅薄膜电池。根据实验结果,证明背反电极增反机理不是薄膜干涉增强原理,而是因为界面共振吸收减少,而导致光的吸收增强的机理。 相似文献
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INTRODUCTION Monocrystalline SBN (Strontium barium nio-bium, SrxBa1?xNb2O6, denoted SBNx?100, where 0.25≤x≤0.75) solid solution, is currently being inves-tigated as potential material for many micro-device applications, such as piezoelectric infrared detectors, piezoelectric, electro-optic modulators, and holo-graphic storage (Koch et al., 1998), because SBN has one of the largest known linear electro-optic coeffi-cients (r33=1300 pm/V for SBN75), two orders of magnitude larger th… 相似文献
12.
In的掺杂对化学水浴沉积SnS薄膜电阻率的影响 总被引：1，自引：0，他引：1
SnS and SnS：In films were deposited onto glass substrates by chemical bath technique. The structure and surface morphology of the SnS：In films were studied by X-ray diffraction （XRD） and scanning electron microscope （SEM） respectively. Energy dispersive spectroscopy （EDS） showed the existence of In in the films. The undoped SnS film exhibited a rather high resistivity and InCl3 could reduce the resistivity of these films by two orders approximately. The band gaps of the SnS and SnS：In films were evaluated from the optical transmission spectra. 相似文献
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反应磁控溅射方法在玻璃基片上沉积Cu-Al-O薄膜,并对薄膜进行退火处理,研究溅射功率和退火温度对薄膜结构和光电学性质的影响。用X射线衍射仪、分光光度计等仪器对薄膜的性质进行表征,采用拟合正入射透射谱数据计算薄膜的厚度。结果表明：不同溅射功率条件下制备的薄膜为非晶态,透射率在近红外部分达到60%以上,电阻率随溅射功率的增加呈U型变化,在120 W附近,电阻率达到极小值;退火后,薄膜的XRD谱出现Cu4O3、Cu O和Al2O3的混合相,薄膜透射率有所提高,电阻率随退火温度的提高而先增大后减小。 相似文献
14.
Auditory-visual perception of changing distance by human infants 总被引：1，自引：0，他引：1
2 studies examined 5-month-old infants' sensitivity to auditory-visual specification of distance and direction of movement. In 1 experiment, infants were presented successively with 2 filmed events--1 of an automobile approaching, and the other of the same automobile driving away. A soundtrack that increased or decreased in amplitude was played along with each film, either in a match or mismatch condition. Infants did not show differential looking patterns related to the match or mismatch of auditory and visual information. In a second experiment, infants were tested using a paired preference technique. The films were shown side-by-side along with a single soundtrack appropriate to 1 of them. Looking time was monitored as before. These infants demonstrated visual preferences for the sound-matched films, evidently detecting the relationship between auditory and visual information when this procedure was used. 相似文献
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为得到高稳定性的电接触材料,向Ag-Mg-Ni合金中添加稀土元素Ce、Y,研究稀土元素对内氧化型银镁镍合金组织、力学性能及电阻率的影响。实验表明,加入Ce、Y后的内氧化银镁镍合金的力学性能明显提高,电阻率略有升高。相对于Y元素,Ce元素的添加使合金强化程度更高,更有利于合金力学性能的提高。 相似文献
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研究了利用RFCVD技术,在铝片等基体表面沉积类金刚石膜。对膜的硬度、电阻率、附着力进行分析发现,在合适的气体流量比和射频功率密度下,这些性能可显著提高。 相似文献
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Amorphous InGaZnO (a-IGZO) films were deposited on the corning eagle XG (EXG) glass substrates using magnetron sputtering
method. The structure, surface morphology, electrical and optical properties of these films were investigated by X-ray diffraction
(XRD), scanning electron microscopy (SEM), semiconductor parameter analyzer and spectrophotometry, respectively. The influence
of oxygen flow on the electrical properties of IGZO thin films was studied, showing that increasing oxygen flow changes the
resistivity with six orders of magnitude. The contact resistance of ITO/IGZO is 7.35×10−2 Ω·cm2, which suggests that a good ohmic contact exists between In2O3: Sn (ITO) and IGZO film. 相似文献
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张治国 《泉州师范学院学报》2008,26(6):29-33
分析热蒸发时锌液滴在舟内跳动的原因,给出解决问题的方法．用反应蒸发法制备成功ZnO导电薄膜,并给出薄膜的形貌显微照片、XRD图谱、光电效应的测量结果以及其结果与电阻率、薄膜光电子迁移率的关系． 相似文献
19.
We describe an objective way to measure whether curricula, educational programs, and institutions are learner-centered. This
technique for benchmarking learner-centeredness uses rubrics to measure courses on 29 components within Weimer’s five dimensions.
We converted the scores on the rubrics to four-point indices and constructed histograms that indicate how learner-centered
courses are and which specific learner-centered components are used. We applied this benchmarking technique to a curriculum
sample to illustrate how the data can be used and interpreted. These analyses form a snapshot of teaching that can be used
in accreditation self-studies and for faculty development. 相似文献
20.
报道了紫外光源在制备金属薄膜材料方面的应用研究,金属钯是一种优良的催化剂,首先在各种衬底上面淀积靶的金属有机化合物薄膜,通过紫外分解钯的金属有机化合物,形成数埃到几十埃的色膜,然后再利用钯的催化效应,在无电极电镀中淀积出几十纳米到几微米厚的各种金属薄膜（如Cu、Au、Ni等）。 相似文献