Influence of low temperature on the morphology and optical property of a deposited silver nanorod array

摘要

The substrate cooling technique was introduced in glancing angle deposition to grow a slanted silver nanorod array (NRA) by introducing liquid nitrogen to flow under the substrate. The morphologies of NRAs deposited with cooling and without cooling are compared in this paper. During deposition, the temperature on the backside of substrate was kept at -140℃. A three-sectional zig-zag nanostructured array (ZNA) was then deposited under the same cooling condition. The polarization dependent transmittance and reflectance spectra of both NRA and ZNA were also measured and compared in this work.