溅射功率对PET衬底上ZnO:Zr薄膜性能的影响

采用直流磁控溅射法在室温下柔性PET衬底上制备出了高质量的掺锆氧化锌(ZnO:Zr)透明导电薄膜。研究了溅射功率对ZnO:Zr薄膜表面形貌、结构、电学和光学性能的影响。溅射功率对ZnO:Zr薄膜的电阻率影响显著:当溅射功率从60W增加到90W时,薄膜的电阻率先减小后增大,在最佳功率80W时,电阻率具有最小值3.67×10-3Ω·cm。所制备的ZnO:Zr薄膜具有良好的附着性能,在可见光区平均透射率高达90%。     

Preparation and characterization of transparent conducting ZnO:W films by DC magnetron sputtering

Tungsten-doped zinc oxide（ZnO:W） films with low resistivity and high transmittance were successfully deposited on glass substrates by direct current magnetron sputtering at low temperature.The deposition pressure is varied from 12 to 21 Pa.The X-ray diffraction results show that all of the deposited films are polycrystalline and have a hexagonal structure with a preferred c-axis orientation.The crystallinity,morphologies and resistivity of ZnO:W films greatly depend on deposition pressure while the optical properties including optical transmittance, optical band gap as well as refractive index are not sensitive to deposition pressure.The deposited films with an electrical resistivity as low as 1.5×10^-4Ω·cm,sheet resistance of 6.8Ω/□and an average transmittance of 91.3% in the visible range were obtained at a deposition pressure of 21 Pa and sputtering power of 130 W.     

Influence of the sputtering pressure on the properties of transparent conducting zirconium-doped zinc oxide films prepared by RF magnetron sputtering

Transparent conducting zirconium-doped zinc oxide films with high transparency and relatively low re-sistivity have been successfully prepared on water-cooled glass substrate by radio frequency magnetron sputtering at room temperature. The Ar sputtering pressure was varied from 0.5 to 3 Pa. The crystallinity increases and the electri-cal resistivity decreases when the sputtering pressure increases from 0.5 to 2.5 Pa. The cystallinity decreases and the electrical resistivity increases when the sputtering pressure increases from 2.5 to 3 Pa. When the sputtering pressure The deposited films are polycrystalline with a hexagonal structure and a preferred orientation perpendicular to the substrate.     

Influence of the distance between target and substrate on the properties of transparent conducting Al-Zr co-doped zinc oxide thin films

Highly transparent and conducting AI-Zr co-doped zinc oxide (ZAZO) thin films were successfully prepared on glass substrate by direct current (DC) magnetron sputtering at room temperature. The distance between target and substrate was varied from 45 to 70 mm. All the deposited films are polycrystalline with a hexagonal structure and have a preferred orientation along the c-axis perpendicular to the substrate. The crystallinity increases obviously and the electrical resistivity decreases when the distance between target and substrate decreases from 70 to 50 mm. However, as the distance decreases further, the crystallinity decreases and the electrical resistivity increases. When the distance between target and substrate is 50 mm, it is found that the lowest resistivity is 6.9×10~(-4) Ω·cm.All the deposited films show a high average transmittance of above 92% in the visible range.     

玻璃和聚酰亚胺衬底上磁控溅射沉积的ZnO:Al透明导电膜的结构、电学和光学性能(英文)

利用射频磁控溅射方法在玻璃和聚酰亚胺膜(PI)衬底上沉积了氧化铝质量分数为2%的掺铝氧化锌透明导电薄膜(ZnO∶Al)。系统地研究了不同衬底材料对薄膜的结构、电学以及光学性能的影响。分析表明,衬底材料对薄膜的结晶性和电学性能有较大的影响,对可见光透射率却影响不大。X射线衍射(XRD)分析得出所有的ZnO∶Al具有良好的c轴择优取向性,在可见光区(400～800nm)两种衬底上的薄膜都达到了85%的透射率。玻璃衬底上的薄膜呈现出更强的(002)衍射峰及相对更小的半峰全宽(FWHM),薄膜电阻率达到了2.352×10-4Ω.cm。电镜分析表明,相对于PI上的ZnO∶Al膜,玻璃上ZnO∶Al膜表面有更致密的微观结构及更大的晶粒尺寸。PI衬底上的ZnO∶Al膜也有相对较好的电、光学性能,其中电阻率达到了6.336×10-4Ω.cm,而且由于PI衬底柔性可弯曲,使得它适于在柔性太阳电池和柔性液晶显示中做窗口层材料及透明导电电极。玻璃上的ZnO∶Al膜则可应用在平板显示和太阳电池技术中。     

溅射压强对磁控溅射法制备的ZnO:Zr透明导电薄膜性能的影响

Transparent conducting zirconium-doped zinc oxide films with high transparency and relatively low resistivity have been successfully prepared on water-cooled glass substrate by radio frequency magnetron sputtering at room temperature. The Ar sputtering pressure was varied from 0.5 to 3 Pa. The crystallinity increases and the electrical resistivity decreases when the sputtering pressure increases from 0.5 to 2.5 Pa. The cystallinity decreases and the electrical resistivity increases when the sputtering pressure increases from 2.5 to 3 Pa. When the sputtering pressure is 2.5 Pa, it is obtained that the lowest resistivity is 2.03 x 10^-3Ω .cm with a very high transmittance of above 94%. The deposited films are polycrystalline with a hexagonal structure and a preferred orientation perpendicular to the substrate.     

ZnO∶Ti透明导电薄膜的制备与光电性能研究

采用直流磁控溅射法,在水冷7059玻璃衬底上制备了具有高透射率和相对低电阻率的掺钛氧化锌(ZnO∶Ti)透明导电薄膜,研究了溅射偏压对ZnO∶Ti薄膜结构、形貌和光电性能的影响。结果表明,ZnO∶Ti薄膜为六角纤锌矿多晶结构,具有c轴择优取向。溅射偏压对ZnO∶Ti薄膜的结构和电阻率有重要影响。当溅射偏压为10V时,电阻率具有最小值1.90×10–4?.cm。薄膜具有良好的附着性能,可见光区平均透射率超过90%。该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。     

Photoelectric properties of ITO thin films deposited by DC magnetron sputtering

As anti-reflecting thin films and transparent electrodes of solar cells,indium tin oxide（ITO） thin films were prepared on glass substrates by DC magnetron sputtering process.The main sputtering conditions were sputtering power,substrate temperature and work pressure.The influence of the above sputtering conditions on the transmittance and conductivity of the deposited ITO films was investigated.The experimental results show that, the transmittance and the resistivity decrease as the sputtering power increases from 30 to 90 W.When the substrate temperature increases from 25 to 150℃,the transmittance increases slightly whereas the resistivity decreases.As the work pressure increases from 0.4 to 2.0 Pa,the transmittance decreases and the resistivity increases.When the sputtering power,substrate temperature and work pressure are 30 W,150℃,0.4 Pa respectively,the ITO thin films exhibit good electrical and optical properties,with resistivity below 10^-4Ω·cm and the transmittance in the visible wave band beyond 80%.Therefore,the ITO thin films are suitable as transparent electrodes of solar cells.     

Thickness dependence of the properties of transparent conducting ZnO:Zr films deposited on flexible substrates by RF magnetron sputtering

Transparent conducting zirconium-doped zinc oxide(ZnO:Zr)thin films with high transparency,low resistivity and good adhesion were successfully prepared on water-cooled flexible substrates(polyethylene glycol terephthalate,PET)by RF magnetron sputtering.The structural,electrical and optical prooerties of the films were studied for different thicknesses in detail.X-ray diffraction(XRD)and scanning electron microscopy(SEM)revealed that all the deposited films are polycrystalline with a hexagonal structure and a preferred orientation perpendicular to the substrate．The lowest resistivity achieved is 1.55×10-3 Ω·cm for a thickness of 189 nm with a Hall mobility of 17.6cm2/(V·s)and a carrier concentration of 2.15×1020cm-3.All the films present a high transmittance of above 90％in the wavelength range of the visible spectrum.     

Studies on the properties of sputter-deposited Ag-doped ZnO films

Ag-doped ZnO films were prepared by simultaneous rf magnetron sputtering of ZnO and dc magnetron sputtering of Ag on glass substrate. The influences of dopant content and substrate temperature on the properties of the as-grown films were investigated. Several analytical tools such as X-ray diffraction, spectrophotometer, atomic force microscopy, scanning electron microscopy and four-point probe were used to explore the possible changes in electrical and optical properties. The as-grown film has a preferred orientation in the (0 0 2) direction. As the amounts of the Ag dopant were increased, the crystallinity as well as the transmittance and optical band gap were decreased while the electrical resistivity increased. However, as the substrate temperature was increased, the crystallinity and the transmittance were increased. A small amount of Ag (<1 at%) lowered the resistivity by 30% with only a slight decrease in the visible transparency.     

利用射频磁控溅射法在柔性衬底上制备ZnO∶Zr透明导电薄膜

利用射频磁控溅射法首次在室温水冷柔性衬底 PET上制备出了可见光透过率高、电阻率低的掺锆氧化锌(ZnO∶Zr)透明导电薄膜.X射线衍射和扫描电子显微镜表明,ZnO∶Zr薄膜为六角纤锌矿结构的多晶薄膜,且具有平行于衬底方向的择优取向.实验获得ZnO∶Zr薄膜的最小电阻率为1.55×10-3 Ω·cm.实验制备的ZnO∶Zr薄膜具有良好的附着性能,其可见光区平均透过率超过90%.     

磁控反应溅射直接生长绒面H化Ga掺杂ZnO-TCO薄膜及其特性研究

采用直流磁控溅射技术,在玻璃衬底上直接生长出了具有绒面结构的H化Ga掺杂ZnO(HGZO)薄膜。研究了H2流量对薄膜结构、表面形貌及光电特性的影响。实验表明,在溅射过程中引入H2明显改善HGZO薄膜电学性能,并且能够直接获得具有绒面结构的薄膜。在H2流量为2.0sccm时,所制备的HGZO薄膜具有特征尺寸约200nm的类金字塔状表面形貌,同时薄膜方阻为4.8Ω,电阻率达到8.77×10-4Ω.cm。H2的引入可以明显改善薄膜短波区域的光学透过,生长获得的HGZO薄膜可见光区域平均透过率优于85%,近红外区域波长到1 100nm时仍可达80%。为了进一步提高薄膜光散射能力和光学透过率,根据不同H2流量下HGZO薄膜性能的优点,提出了梯度H2技术生长HGZO薄膜;采用梯度H2工艺生长获得的HGZO薄膜长波区域透过率有了一定的提高,薄膜具有弹坑状表面形貌,并且其光散射能力有了明显提高。     

溅射压强对柔性PET衬底ZnO薄膜性能的影响

利用直流磁控溅射法,在室温水冷柔性PET衬底上成功制备出了掺钛氧化锌(ZnO:Ti,TZO)透明导电薄膜。通过X射线衍射(XRD)研究了薄膜的结构,用扫描电镜(SEM)研究了薄膜的表面形貌,用四探针和紫外-可见分光光度计等仪器对薄膜的特性进行测试分析,研究了溅射压强对ZnO:Ti薄膜表面结构、形貌、力学、电学和光学性能的影响。结果表明,溅射压强对PET衬底上的TZO薄膜的性能有显著的影响,实验制备的ZnO:Ti薄膜为具有C轴择优取向的六角纤锌矿结构的多晶薄膜;当溅射压强从2Pa增加到4Pa时,薄膜的电阻率由10.87×10-4Ω.cm快速减小到4.72×10-4Ω.cm,随着溅射压强由4Pa继续增大到6Pa,薄膜的电阻率变化平缓,溅射压强为5Pa时薄膜的电阻率最小,为4.21×10-4Ω.cm;经计算得到6Pa时样品薄膜应力最小,为0.785 839GPa;所有样品都具有高于91%的可见光区平均透过率。     

掺钛氧化锌透明导电薄膜的制备及特性研究

利用直流磁控溅射法在室温水冷玻璃衬底上成功地制备出了掺钛氧化锌(ZnO:Ti)透明导电薄膜.研究了靶衬间距对ZnO:Ti薄膜结构、形貌和光电性能的影响.研究结果表明,靶衬间距对ZnO:Ti薄膜的结构和电阻率有显著影响.X射线衍射(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.在靶衬间距为4.6 cm时,实验获得的ZnO:Ti薄膜电阻率具有最小值4.18×10-4Ω·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92%.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.     

溅射压强对钛镓共掺杂氧化锌透明导电薄膜性能的影响

利用直流磁控溅射工艺在玻璃衬底上制备出了透过率高、电阻率较低的钛镓共掺杂氧化锌透明导电薄膜(TGZO)。研究了溅射压强对TGZO薄膜结构、形貌和光电性能的影响。研究结果表明,溅射压强对TGZO薄膜的结构和电阻率有重要影响。X射线衍射(XRD)表明,TGZO薄膜为具有c轴择优取向的六角纤锌矿结构多晶薄膜。薄膜的电阻率具有随着溅射压强的增大先减小,后增大的规律,在溅射压强为11Pa时,实验获得的TGZO薄膜晶格畸变最小,电阻率具有最小值1.48×10-4Ω.cm,透过率具有最大值94.3%。实验制备的TGZO薄膜附着性能良好,在400～760nm波长范围内的平均透过率都高于90%。     

射频溅射功率对非晶Zn-Sn-O薄膜性能的影响

使用射频磁控溅射法,基于不同溅射功率(58、79、116、148和171W)条件在玻璃基底上室温制备了Zn-Sn-O(ZTO)薄膜,并探讨了溅射功率对薄膜的结构、电学性能和光学性能的影响。结果表明,提高溅射功率有助于提升薄膜的沉积速率;XRD分析表明不同溅射功率条件下制备的ZTO薄膜均具备稳定的非晶结构;随着溅射功率的增加,薄膜的电阻率下降,光学吸收边“红移”(光学禁带宽度从3.77eV减小到3.62eV);整体来看,在58~148W溅射功率范围内制备的ZTO薄膜具备较好的可见光透明性,其在380~780nm可见光范围内的平均透过率均超过85%。     

Effect of RF power and substrate temperature on the properties of boron and gallium co-doped ZnO films

Boron and gallium co-doped ZnO (BGZO) films were prepared by radio-frequency (RF) magnetron sputtering under different RF powers (50–250 W) at room temperature and 200 °C, respectively. The influence of sputtering power and substrate temperature on the structural, morphological, electrical and optical properties of BGZO films was investigated. The results indicated that all the films showed preferentially c-axis orientation and structure of hexagonal wurtzite. The grain size decreased at higher sputtering power above 150 W. The carrier concentration and optical band gap (E_g) increased with the increasing of RF sputtering power. At RF power of 150 W, the films showed higher mobility and lower resistivity. Average optical transmittance of all the BGZO films is greater than 85% in the visible wavelength and did not change obviously with the sputtering power or substrate temperature.     

不同衬底沉积Ti-Al共掺杂ZnO薄膜的性能对比研究

利用直流磁控溅射法,在玻璃衬底和Si片衬底上分别沉积出了Ti-Al共掺杂ZnO透明导电薄膜(TAZO),并对这两种衬底上的薄膜的应力、结构和光电性能进行了对比研究.结果表明:玻璃衬底和Si片衬底上沉积的TAZO薄膜均为具有c轴择优取向的六角纤锌矿结构多晶薄膜,Si片衬底的TAZO薄膜的导电性能优于玻璃衬底上的TAZO薄...     

NZO透明导电薄膜的制备及其性能研究

室温下,采用直流磁控溅射法,在玻璃衬底上制备出Nb掺杂ZnO(NZO,ZnO:Nb)透明导电薄膜。研究了靶与衬底之间的距离对NZO薄膜结构、形貌、光学及电学性能的影响。实验结果表明,不同靶基距下制备的NZO薄膜均为c轴择优取向生长,(002)衍射峰的强度随着靶基距的减小而增大。靶基距增大时,薄膜表面逐步趋向平整光滑、均匀致密,薄膜的厚度逐渐减小。在靶基距为60mm时,制备的薄膜厚为355.4nm,电阻率具有最小值(6.04×10-4Ω.cm),在可见光区的平均透过率达到92.5%,其光学带隙为3.39eV。     

P-type ZnO thin films prepared by in situ oxidation of DC sputtered Zn3N2:Ga

The feasibility of a new fabrication route for N and Ga codoped p-type ZnO thin films on glass substrates, consisting of DC sputtering deposition of Zn3N2:Ga precursors followed by in situ oxidation in high purity oxygen, has been studied. The effects of oxidation temperature on the structural, optical and electrical properties of the samples were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), optical transmittance and Hall effect measurements. The results were compared to a control film without Ga. XRD analyses revealed that the Zn3N2 films entirely transformed into ZnO films after annealing Zn3N2 films in oxygen over 500 ℃ for 2 h. Hall effect measurements confirmed p-type conduction in N and Ga codoped ZnO films with a low resistivity of 19.8 Ω·cm, a high hole concentration of 4.6 × 1018 cm-3 and a Hall mobility of 0.7 cm2/(V·s). These results demonstrate a promising approach to fabricate low resistivity p-type ZnO with high hole concentration.