工艺条件对柔性衬底ITO薄膜光电性能的影响

采用直流磁控溅射法在柔性衬底上镀制ITO透明导电薄膜,全面研究了薄膜厚度、氧气流量、溅射速率、溅射气压和镀膜温度等工艺条件对ITO薄膜光电性能的影响。结果表明,当膜厚大于80nm、氧氩体积比为1∶40、溅射速率为5nm/min、溅射气压在0.5Pa左右、镀膜温度为80～160℃时,ITO薄膜的光电性能较好,其电阻率小于5×10–4?·cm、可见光透光率大于80%。     

LCD相关原材料产业发展态势(下)

4 ITO玻璃通常在基片玻璃上用电子束蒸发或在氧气气氛中溅射得到ITO膜,膜厚在100～300nm之间,由所需的电阻所确定。在溅射时,采用ITO合金靶,在SnO_2-In_2O_3合金中,SnO_2的浓度大约为5%～10%时,有利于得到最佳的ITO膜性能。在沉积过程中,氧     

工艺对磁控溅射ZAO薄膜光电特性的影响

在玻璃衬底上用直流磁控溅射的方法镀制ZAO透明导电膜,研究了温度、氧压比、溅射气压、溅射速率等工艺条件对ZAO膜电阻率和可见光透过率等光电特性的影响。实验结果表明,当温度470℃、氧氩比0.5/40、溅射气压0.5Pa和镀膜速率3.6nm/min左右时,可获得薄膜电阻率7.2×10–4?·cm、可见光透过率85%以上的最佳光电特性参数。     

磁控溅射ITO薄膜结构和性能的研究

利用中频脉冲磁控溅射工艺制备ITO薄膜,研究了在衬靶间距为60 mm、衬底温度为350℃、溅射功率为120 W、溅射气压为0.2 Pa的条件下,氧氩比(O2/Ar)、溅射时间对ITO薄膜表面形貌、膜厚、沉积速率及光电性能的影响。通过实验和分析,最终确定了在玻璃衬底上制备ITO薄膜的最佳氧氩比和溅射时间:氧氩比为0.4:40,溅射时间为45 min,获得了方阻为2.55Ω/□,电阻率为1.46×10-4Ω·cm,可见光范围内平均透过率为81.2%的薄膜。     

液晶显示用玻璃的ITO镀层

在LCD生产中,从平板靶溅射ITO已是一项非常成熟的工艺,但如果转而采用旋转柱状靶,则可大大降低镀膜基板的成本。     

ITO薄膜厚度和含氧量对其结构与性能的影响

在玻璃衬底上用直流磁控溅射的方法镀制ITO透明半导体膜,采用X射线衍射技术分析了膜层晶体结构与薄膜厚度和氧含量的关系,并测量了薄膜电阻率及透光率分别随膜厚和氧含量的变化情况。以低氧氩流量比(1/40)并控制膜厚在70nm以上进行镀膜,获得了结晶性好、电阻率低且透光率高的ITO透明半导体薄膜,所镀制的ITO膜电阻率降到1.8×10–4?·cm,可见光透光率达80%以上。     

成膜与热处理参数对溅射沉积ITO 膜电性能的影响

采用了补氧直流磁控反应溅射工艺制备ITO膜，在不同基片加热温度和补氧流量下获得最低方块电阻值的最佳制备工艺。对制备的ITO薄膜进行了退火热处理，研究不同温度热处理后膜的方块阻值的变化。实验表明，对一定的基片加热温度，ITO膜的方块电阻与溅射气氛中的补氧流量有关，并存在一个最佳补氧的值，在该条件下制备ITO的方块电阻最小，在膜厚为40nm埃时仅有不到100Ω／□。影响溅射沉积ITO透明导电薄膜方阻的，除了溅射沉积时基片的烘烤温度和补氧流量外，还包括后期大气退火热处理的温度。     

ITO薄膜的近零介电常数波长的调控研究

近年来,氧化铟锡(ITO)薄膜因其可实现介电常数近零(Epsilon-Near-Zero,ENZ)且易于调制的特性,已经成为非线性光学和微纳光学等领域的研究热点.文章先使用射频磁控溅射法在硅基底上制备ITO薄膜,再通过椭圆偏振光谱仪测试并拟合其光学参数,探究了本底真空度、溅射功率、溅射气压、衬底温度和膜厚等因素对ITO薄膜ENZ波长的调节机制.通过优化工艺,使ITO薄膜最短ENZ波长蓝移至1 094.4 nm,突破了以往文献报道的极限.该研究将ITO薄膜的ENZ波长延伸至近红外短波区域,有望实现微纳光电器件相关领域向短波方向的应用拓展.     

共溅射法制备ITO:Zr薄膜及其特性研究

采用ITO靶和Zr靶共溅射在玻璃衬底上沉积了ITO:Zr薄膜,研究了衬底温度、氧流量对ITO:Zr薄膜性能的影响.表征和对比了ITO:Zr薄膜晶体结构和表面粗糙度的变化ITO:Zr薄膜在低温生长时就可以得到良好的光电性能,衬底温度的提高显著改善了薄膜光电性能;一定范围的氧流量也可以改善薄膜的性能,但过量的氧却使得ITO:Zr薄膜的光性能变差.透射谱表明各参数的变化引起了明显的"Burstin Moss"效应.当优化溅射条件为工作气压0.5Pa、氧流量0.3 sccm、直流溅射功率45 W(ITO靶)和射频功率10 W(Z靶)、沉积速率8 nm/min和一定的衬底温度时,可以获得方阻10～20 Ω/sq和可见光透过率85%(含基底)以上的ITO:Zr薄膜.     

制备工艺对ITO薄膜的电阻率及沉积速率的影响

采用射频磁控溅射法制备了氧化铟锡[ITO,In2O3:SnO2=90:10(质量比)]薄膜,详细探讨了溅射气氛氧氩体积比、溅射功率及溅射气压对ITO薄膜电阻率和沉积速率的影响。结果表明:溅射工艺参数对ITO薄膜电阻率和沉积速率的影响十分明显。随着氧氩体积比的增大,样品的电阻率显著增大,沉积速率下降;随着溅射功率的增加,ITO薄膜的电阻率先减小后略微增大,沉积速率上升;随着溅射气压升高,ITO薄膜的电阻率先减小后增大,当溅射气压增大到较大值时,ITO薄膜的电阻率又开始减小,而沉积速率则先上升后下降。     

直流磁控反应溅射沉积ITO透明导电膜的研究

研究了用铟锡合金靶直流磁控反应溅射制备ＩＴＯ透明导电膜。介绍了膜的制备工艺和膜的特性，讨论了成膜过程和热处理对膜的电阻率和透光率的影响。     

Preparation of Indium Tin Oxide films deposited by reactive evaporation at different substrate-temperature and the properties

The Indium Tin Oxide films have been prepared at different substrate-temperature on glass substrates by reactive evapora- tion of In-Sn alloy with an oxygen pressure of 1.3 ×10-1 Pa and a deposition rate of 10-2 nm/s. The best ITO films obtained have an electrical resistivity of 4.35 × 10-4 ??cm , a carrier concentration of 4.02 × 1020 cm-3 , and a Hall mobility of 67.5 cm2v-1s-1. The influence of the substrate-temperature on the structural , optical and electrical properties of the obtained films has been investigated.     

直流磁控溅射法制备本征ZnO薄膜及光伏应用研究

采用直流磁控溅射法制备了ZnO薄膜,研究了沉积过程中变换氧分压对薄膜光电性能的影响.采用XRD、紫外可见光分光光度计及AFM等方法对薄膜的结构和光电性质进行了表征.结果表明,ZnO薄膜在可见光范围内的透过率可达88％,并且随着氧分压的增大,薄膜的透过率也增大;制备出的ZnO薄膜表面粗糙度为0.41 nm.在glass/ITO/CdS/CdTe结构的太阳电池中,将本征ZnO薄膜作为高阻层加入到ITO与CdS之间,电池的开路电压和填充因子有明显的提高,加入高阻层之后,电池的转换效率最高可达13.6％.     

Optical Properties and Reactive Sputtering Conditions of AIN and AlSiN Thin Films for Magneto- Optical Applications

The dependence of the refractive index and film thickness of AlN and AlSiN thin films on the reactive sputtering conditions (N₂ partial pressure, total pressure, and rf sputtering power) have been studied in detail and analyzed in terms of the mechanism of reactive sputtering and the target poisoning phenomenon. On the basis of the results, the sputtering conditions of AlN and AlSiN films have been optimized for magneto-optical applications. The AlN and AlSiN films after optimization of the sputtering conditions had very high transmissivity and refractive index, and were suitable for magneto-optical Kerr effect enhancement. A marked enhancement of the magneto-optical Kerr effect for a TbFeCo film coated with AlN and AlSiN films was observed. The improvement of the signalto-noise ratio obtained with the AlSiN film was greater than the AlN film.     

溅射工艺参数对BST薄膜介电常数的影响

采用射频磁控溅射法在ITO玻璃基片上制备了约700nm的Ba0.5Sr0.5Ti03(BST)薄膜。研究了溅射功率、气压、ψ[O2/(Ar+O2)]比和基片温度对εr的影响,获得各种溅射条件下的薄膜的εr为250~310。提出了较优的工艺,即本底真空1.5×10–3Pa、靶基距6.2cm、功率300W、气压1.8Pa、ψ[O2/(Ar+O2)]为30%和衬底温度500℃,并研究了薄膜的晶相、组成和形貌。     

Electrical and optical properties of deep ultraviolet transparent conductive Ga2O3/ITO films by magnetron sputtering

Ga2O3/ITO films were prepared by magnetron sputtering on quartz glass substrates. The transmittance and sheet resistance of ITO films and Ga2O3/ITO films were measured by using a double beam spectrophotometer and four point probes. The effect of the ITO layer and Ga2O3 layer thickness on the electrical and optical properties of Ga2O3/ITO bi-layer films were investigated in detail. Ga2O3 (50 nm)/ITO (23 nm) films exhibited a low sheet resistance of 323 Ω/□ and high deep ultraviolet transmittance of 77.6% at a wavelength of 280 nm. The ITO layer controls the ultraviolet transmittance and sheet resistance of Ga2O3/ITO films. The Ga2O3 layer thickness has a marked effect on the transmission spectral shape of Ga2O3/ITO films in the violet spectral region.