直流磁控溅射法制备掺钛氧化锌透明导电薄膜

采用直流磁控溅射法在室温水冷玻璃衬底上制备出高质量的掺钛氧化锌(ZnO:Ti)透明导电薄膜,研究了溅射功率对ZnO:Ti薄膜结构、形貌和光电性能的影响,结果表明,溅射功率对ZnO:Ti薄膜的结构和电阻率有显著影响.XRD表明,ZnO:Ti薄膜为六角纤锌矿结构的多晶薄膜,且具有c轴择优取向.当溅射功率为130W时,实验制备的ZnO:Ti薄膜的电阻率具有最小值9.67×10~(-5)Ω·cm.实验制备的ZnO:Ti薄膜具有良好的附着性能,可见光区平均透过率超过91%.ZnO:Ti薄膜可以用作薄膜太阳能电池和液晶显示器的透明电极.     

Pr掺杂对ZnO透明导电薄膜光电性能的影响

采用溶胶-凝胶法在石英玻璃基片上制备出了Pr掺杂ZnO透明导电薄膜,研究了Pr掺杂对ZnO透明导电薄膜结构、形貌、光学和电学性能的影响。实验结果表明,Zn1-xPrxO薄膜均为纤锌矿结构,当Pr掺杂含量为1%时,Zn1-xPrxO薄膜的结晶质量最好、可见光平均透过率最高、电阻率最低,具有最佳的光电综合性能。     

铝锆共掺杂氧化锌透明导电薄膜的低温制备及特性研究

利用直流磁控溅射法在室温玻璃衬底上制备出了可见光透过率高、电阻率低的铝锆共掺杂氧化锌(ZAZO)透明导电薄膜。讨论了溅射功率对ZAZO薄膜结构、形貌和光电性能的影响。实验结果表明,溅射功率对ZAZO薄膜的结构、形貌和电学性能有很大影响,而对其光学性能影响不大。扫描电子显微镜和X射线衍射仪研究结果表明,ZAZO薄膜为六方纤锌矿结构的多晶薄膜,具有垂直于衬底方向的c轴择优取向。当溅射功率为120 W时,薄膜的电阻率达到最小值5.28×10-4Ω.cm,其可见光区平均透过率超过94%。     

磁控溅射中工艺参数对ZnO:Al薄膜性能的影响

利用射频磁控溅射法,采用氧化锌铝(98%ZnO+2%Al2O3)为靶材,在普通载玻片上制备了ZAO(ZnO∶Al)薄膜,研究了溅射功率及溅射气压对薄膜晶体结构、电学和光学性能的影响.采用X射线衍射仪、场扫描电镜对薄膜的结构及表面形貌进行了分析,采用分光光度计和电阻率测试仪对薄膜的光电学性能进行了测试.结果表明,当溅射功率为120W、衬底温度为300℃、工作气压为0.5Pa时制得的薄膜具有良好的光电学性能,可见光平均透过率为88.21%,电阻率为8.28×10-4Ω·cm.     

ZnO∶Nb透明导电薄膜的制备及光电特性研究

采用直流磁控溅射法在玻璃衬底上沉积铌掺杂氧化锌(NZO)透明导电薄膜。通过X射线衍射(XRD)、扫描电镜(SEM)以及透射光谱等测试研究了溅射功率对薄膜结构、形貌以及光电性能的影响。实验结果表明NZO薄膜是多晶膜,具有ZnO的六角纤锌矿结构,最佳取向为(002)方向。溅射功率从40W增加到80W时,薄膜的电阻率迅速下降;功率超过80W时,电阻率趋于平稳。在溅射功率为100W时,电阻率具有最小值5.89×10-4Ω.cm,光学带隙具有最大值3.395eV。实验制备的NZO薄膜附着性能良好,在可见光范围内的平均透过率均超过86.6%。     

Al-Sn共掺杂ZnO薄膜的结构与光电性能研究

采用射频磁控共溅射法在玻璃衬底上制备出了Al与Sn共掺杂的ZnO(ATZO)薄膜.在固定ZnO∶Al(AZO)靶溅射功率不变的条件下,研究了Sn靶溅射功率对ATZO薄膜的结晶质量、表面形貌、电学和光学性能的影响.结果表明,制备的ATZO薄膜是六角纤锌矿结构的多晶薄膜,具有c轴择优取向,而且表面致密均匀.当Sn溅射功率为5W时,330 nm厚度的ATZO薄膜的电阻率最小为1.49×10-3 Ω·cm,比AZO薄膜下降了22％.ATZO薄膜在400～900 nm波段的平均透过率为88.92％,禁带宽度约为3.62 eV.     

Zn0.9Mg0.1O:Ti透明导电薄膜的制备及研究

采用磁控溅射法在不同的溅射压强下制备了ZnMgO∶Ti透明导电薄膜.着重研究了溅射压强对ZnMgO∶ Ti薄膜的晶体结构、电学和光学性能的影响.结果表明:当溅射功率为80W时,电阻率随着溅射压强的增加先减小后增加,在12 Pa时达到最小值1.9× 10-3 Ω·cm.薄膜结晶程度、晶粒的均匀性及致密性对电阻率有较大影响.所有条件下制备的薄膜在400～900nm范围内的透射率均超过90％.相对于6Pa下沉积的薄膜,在9Pa和12 Pa下沉积薄膜的光学吸收边界出现“蓝移”现象.用ZnMgO∶Ti透明导电薄膜作透明电极有可能提高太阳能电池的效率.     

溅射功率对ZnO:Al薄膜光电性能的影响

采用射频磁控溅射工艺,以Al掺杂ZnO(ZAO)陶瓷靶为靶材在石英玻璃基片上制备出具有优良光电性能的ZAO透明导电薄膜,研究了溅射功率对薄膜光电性能的影响。在不同溅射功率条件下制备的ZAO薄膜具有很好的c轴择优取向。较大功率溅射有利于薄膜晶粒尺寸的增大、电阻率降低。ZAO薄膜在可见光区的透过率平均值高达90%以上,受溅射功率影响不大。在340nm-420nm波长附近ZAO薄膜透过率急剧下降,呈现明显的紫外吸收边;高的溅射功率提高了ZAO薄膜的光学带隙宽度。     

高度(002)择优取向Li+掺杂ZnO薄膜的制备和性能

制备了不同摩尔浓度Li 掺杂ZnO-Li0.022陶瓷靶、并用RF射频磁控溅射工艺在Si(100)基片上制备ZnO薄膜,研究了溅射温度、氧分压和溅射功率等对ZnO薄膜微结构、表面形貌和择优取向的影响.结果表明:Li 的最佳掺杂量(摩尔分数)为2.2%,RF溅射的最佳基片温度Ts小于300 ℃,氩氧气氛体积比为Ar:O2=20:5,溅射功率50～60 W;制备出的ZnO薄膜高度c轴(002)择优取向、均匀、致密,其绝缘电阻率ρ为4.12×108 Ω·cm,满足研制声表面波器件(SAW)的要求.     

直流磁控溅射功率对溅射生长GZO薄膜光电性能的影响

本文采用直流磁控溅射沉积系统在玻璃基底上沉积镓掺杂氧化锌(GZO)薄膜,将溅射功率从120W调整到240W,步长为30W,研究功率变化对GZO薄膜的晶体结构、表面形貌、光学性能和电学性能的影响。结果表明,溅射功率对GZO薄膜电阻率有显著的影响。溅射功率为210W时薄膜呈现最低电阻率为3.31×10~(-4)Ω·cm,可见光波段平均光学透光率接近84%。随着溅射功率的增加,薄膜表面形貌和生长形态发生较大变化,并直接得到具有一定凸凹不平的微结构,GZO薄膜的致密性先增加后降低。     

衬底温度对Sn掺杂ZnO薄膜结构、电学和光学性能的影响

采用射频磁控溅射技术在石英衬底上制备了掺杂浓度为0.5％(原子分数)的ZnO∶Sn(TZO)薄膜,研究了不同衬底温度下薄膜的结构、形貌、电学和光学的性能.研究发现,TZO薄膜沿着C轴择优生长,在400℃时结晶度最好,最低电阻率为2.619×10-2Ω·cm,在可见光范围内具有较好的透光率.     

衬底温度和氧分压对ZnO：Al薄膜性能的影响研究术

以掺杂质量数为2％的Al2O3：ZnO为靶材,用激光脉冲沉积法,通过改变氧压和衬底温度调整薄膜的性能,制备得到相对优质的ZnO：Al薄膜,采用x射线衍射、紫外-可见分光光度计和霍尔效应测试仪等表征其物相、光学和电学性能,最终得到电阻率为1．27×10^-3Ω／cm^-3、平均光透过率超过80％的透明导电薄膜。     

氢化及沉积温度对掺铝ZnO透明导电薄膜性能影响

采用射频磁控溅射方法在玻璃衬底上制备了掺铝ZnO透明导电薄膜(AZO)。为了降低AZO薄膜的电阻率, 采用在溅射气氛中通入一定比例H₂的方法对AZO薄膜进行氢化处理, 并研究了溅射气氛中H₂含量及衬底温度对AZO薄膜氢化效果的影响。结果表明: 在低温条件下, 氢化处理能有效降低AZO薄膜的电阻率; 在衬底温度为100℃的低温条件下, 通过调节溅射气氛中H₂的比例, 制备了电阻率为6.0×10^-4 Ω·cm的高质量氢化AZO薄膜, 该电阻值低于同等条件下未氢化AZO薄膜电阻值的1/3; 但随着衬底温度的升高, 氢化处理对薄膜电学性能的改善效果逐渐减弱。     

Characterization of aluminum-doped zinc oxide thin films by RF magnetron sputtering at different substrate temperature and sputtering power

In this study, transparent conductive Al doped zinc oxide (ZnO: Al, AZO) thin films with a thickness of 40 nm were prepared on the Corning glass substrate by radio frequency magnetron sputtering. The properties of the AZO thin films are investigated at different substrate temperatures (from 27 to 150 °C) and sputtering power (from 150 to 250 W). The structural, optical and electrical properties of the AZO thin films were investigated. The optical transmittance of about 78 % (at 415 nm)–92.5 % (at 630 nm) in the visible range and the electrical resistivity of 7 × 10^?4 Ω-cm (175.2 Ω/sq) were obtained at sputtering power of 250 W and substrate temperature of 70 °C. The observed property of the AZO thin films is suitable for transparent conductive electrode applications.     

溅射气压对TiN薄膜的制备工艺及光学性能的影响

采用直流反应磁控溅射法,在Si（111）基底上制备氮化钛（TiNx）薄膜。研究了溅射沉积过程中腔体气压对TiNx薄膜结构及性能的影响。研究发现：在保持其它工艺参数不变的情况下,改变溅射气压,沉积的TiNx薄膜主要成分是立方相TiN,薄膜的结晶显示出明显的（200）择优取向。在腔体气压为0．5Pa时出现（200）衍射峰最强、择优取向最明显。随着腔体气压的增加,薄膜厚度变小,而衍射峰则呈减弱的趋势。在腔体气压为0．3Pa时,膜层致密均匀,没有大尺寸缺陷且光洁度好,薄膜的结晶度最好,表面也最光滑。在测试波长范围内对光的平均反射率最大（达85％）,可满足光学薄膜质量方面的要求。     

Mn-doped ZnO transparent conducting films deposited by DC magnetron sputtering

Mn-doped zinc oxide (ZnO:Mn) thin films with low resistivity and relatively high transparency were firstly prepared on glass substrate by direct current (DC) magnetron sputtering at room temperature. Influence of film thickness on the properties of ZnO:Mn films was investigated. X-ray diffraction (XRD) and scanning electron microscopy (SEM) show that all the deposited films are polycrystalline with a hexagonal structure and have a preferred orientation along the c-axis perpendicular to the substrate. As the thickness increases from 144 to 479 nm, the crystallite size increases while the electrical resistivity decreases. However, as the thickness increases from 479 to 783 nm, the crystallite size decreases and the electrical resistivity increases. When film thickness is 479 nm, the deposited films have the lowest resistivity of 2.1 × 10^− 4 Ω cm and a relatively high transmittance of above 84% in the visible range.     

Structural, electrical and optical properties of ZnO:Al films deposited on flexible organic substrates for solar cell applications

Aluminum doped ZnO thin films (ZnO:Al) were deposited on glass and poly carbonate (PC) substrate by r.f. magnetron sputtering. In addition, the electrical, optical properties of the films prepared at various sputtering powers were investigated. The XRD measurements revealed that all of the obtained films were polycrystalline with the hexagonal structure and had a preferred orientation with the c-axis perpendicular to the substrate. The ZnO:Al films were increasingly dark gray colored as the sputter power increased, resulting in the loss of transmittance. High quality films with the resistivity as low as 9.7 × 10^− 4 Ω-cm and transmittance over 90% have been obtained by suitably controlling the r.f. power.     

Tungsten-doped ZnO transparent conducting films deposited by direct current magnetron sputtering

Highly conducting and transparent thin films of tungsten-doped ZnO (ZnO:W) were prepared on glass substrates by direct current (DC) magnetron sputtering at low temperature. The effect of film thickness on the structural, electrical and optical properties of ZnO:W films was investigated. All the deposited films are polycrystalline with a hexagonal structure and have a preferred orientation along the c-axis perpendicular to the substrate. The electrical resistivity first decreases with film thickness, and then increases with further increase in film thickness. The lowest resistivity achieved was 6.97 × 10⁻⁴ Ω cm for a thickness of 332 nm with a Hall mobility of 6.7 cm² V⁻¹ s⁻¹ and a carrier concentration of 1.35 × 10²¹ cm⁻³. However, the average transmittance of the films does not change much with an increase in film thickness, and all the deposited films show a high transmittance of approximately 90% in the visible range.