A new method for fabricating ultrathin metal films as scratch-resistant flexible transparent electrodes

   文中部分图片：

一次和多次沉积的微观形貌和物相分析

Fig. 3. (a) TEM image of Ag film deposited in one time (8 nm × 1 layer). (b) TEM image, (c) high resolution TEM image, and (d) electron diffraction patterns of Ag film deposited in four times (2 nm × 4 layers).

薄层电阻和光透射率

Fig. 4. (a–c) Optical transmittance spectra and sheet resistance of multi-layer Ag films with different thickness. (d) Simulation of optical transmittance spectra of Ag film (D = 10 nm) with PEFOT:PSS coating (D = 40–60 nm) on 1-mm-thick glass substrate.

多层银薄膜和Al掺杂银薄膜的薄层电阻对比

Fig. 5. Comparison of performances between our multi-layer Ag films and Al-doped Ag films [21].

拉伸性能

Fig. 6. R_s/R₀ and R_r/R₀ (a) as a function of tensile strain, and (b) as a function of stretching cycles after releasing from 30% strain. The Ag film is 2.2 nm × 4 layers thick deposited on PDMS substrate with 30% pre-strain.

多层沉积制备的银薄膜受拉后的微观形貌

Fig. 7. SEM images of distributed ruptures in Ag film on a tape under (a) small strain (b) increased strain. The arrows indicate the strain directions.

来自休斯顿大学的Professor Ren带领的团队所做的工作可谓是创意满满、有理有据、条理清晰，赞。让我们来认识下他吧！

Yuan Liu is currently a graduate student pursuing her Ph.D. degree in the Department of Physics at the University of Houston, USA. She obtained her B.S. Degree in Physics from Nanjing University, China. Her current research is mainly on nanomaterials and nano-fabrication for applications in flexible transparent conductors in addition to thermoelectrics.

Dr. Chuanfei Guo is a research associate fellow in the Department of Physics and TcSUH at the University of Houston, USA. He earned a Ph.D. degree from the National Center for Nanoscience & Technology of China, Chinese Academy of Sciences in 2011, a B.S. degree from the Huazhong University of Science & Technology, China, in 2006. He joined Prof. Zhifeng Ren's group since 2011. His research focuses on nanomaterials, nano-/micro-fabrication, flexible electronics, photovoltaics, and thermoelectrics.

Dr. Zhifeng Ren is an M.D. Anderson Chair Professor in Physics and Texas Center for Superconductivity at University of Houston. He obtained his Ph.D. from Institute of Physics, Chinese Academy of Sciences, master from Huazhong University of Science and Technology, and bachelor from Sichuan Institute of Technology. He was a postdoc and research professor at SUNY Buffalo and professor at Boston College. He specializes in thermoelectric materials and devices, flexible transparent conductors, photovoltaics, carbon nanotubes, superconductors, etc. He is a fellow of the APS, AAAS and NAI. He is recipient of the R&D 100 award and O׳Donnell award of TAMEST.