Zhang Yong, Magan John J, Blau Werner J
School of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland.
Sci Rep. 2014 Apr 28;4:4822. doi: 10.1038/srep04822.
The development of thin film-based structures/devices often requires thin films to be transferred onto arbitrary substrates/surfaces. Controllable and non-destructive transfer method, although highly desired, remains quite challenging. Here we report a general method for fabrication and transfer of hybrid (ultra)thin films. The proposed solution-based in-situ transfer method shows not only its robust ability for thin film transfer onto arbitrary substrates but also its highly controlled and non-destructive characteristic. With a hole structure as the support, fully-stretched free-standing thin film is prepared. The successful transfer to a curved surface demonstrates the possibility for production of thin film-coated complex optical components. Ultrathin (35 nm) hybrid film transferred onto PET (50 μm thick) shows high transparency (>90% in visible range), conductivity (1.54 × 10(4) S/m), and flexibility (radius of curvature down to mm scale). The reported transfer method would provide a powerful route towards complex thin film-based structures/devices.
基于薄膜的结构/器件的发展通常要求将薄膜转移到任意的衬底/表面上。尽管人们非常渴望可控且无损的转移方法，但这仍然极具挑战性。在此，我们报道了一种用于制备和转移混合（超）薄膜的通用方法。所提出的基于溶液的原位转移方法不仅显示出其将薄膜转移到任意衬底上的强大能力，还具有高度可控和无损的特性。以孔结构作为支撑，制备出了完全拉伸的独立薄膜。成功转移到曲面上证明了生产薄膜涂覆的复杂光学元件的可能性。转移到PET（50μm厚）上的超薄（35nm）混合薄膜显示出高透明度（在可见光范围内>90%）、导电性（1.54×10⁴S/m）和柔韧性（曲率半径低至毫米尺度）。所报道的转移方法将为制备基于复杂薄膜的结构/器件提供一条有力途径。
