Department of Solid State Engineering, Institute of Chemical Technology, Prague 166 28, Czech Republic.
Nanoscale Res Lett. 2013 May 22;8(1):249. doi: 10.1186/1556-276X-8-249.
The paper is focused on the preparation and surface characterization of gold coatings and nanostructures deposited on glass substrate. Different approaches for the layer preparation were applied. The gold was deposited on the glass with (i) room temperature, (ii) glass heated to 300°C, and (iii) the room temperature-deposited glass which was consequently annealed to 300°C. The sheet resistance and concentration of free carriers were determined by the van der Pauw method. Surface morphology was characterized using an atomic force microscopy. The optical properties of gold nanostructures were measured by UV-vis spectroscopy. The evaporation technique combined with simultaneous heating of the glass leads to change of the sheet resistance, surface roughness, and optical properties of gold nanostructures. The electrically continuous layers are formed for significantly higher thickness (18 nm), if the substrate is heated during evaporation process. The annealing process influences both the structure and optical properties of gold nanostructures. The elevated temperature of glass during evaporation amplifies the peak of plasmon resonance in the structures, the surface morphology being significantly altered.
本文专注于在玻璃基底上沉积的金涂层和纳米结构的制备和表面特性研究。采用了不同的层制备方法。金通过以下三种方式沉积在玻璃上：（i）室温下，（ii）将玻璃加热至 300°C，以及（iii）室温沉积的玻璃随后退火至 300°C。通过范德堡法确定薄层电阻和自由载流子浓度。使用原子力显微镜对表面形貌进行了表征。通过紫外-可见光谱测量了金纳米结构的光学性质。蒸发技术与玻璃的同时加热导致金纳米结构的薄层电阻、表面粗糙度和光学性质发生变化。如果在蒸发过程中加热基底，则可以形成电连续的层，厚度显著增加（18nm）。退火过程会影响金纳米结构的结构和光学性质。蒸发过程中玻璃的高温会放大结构中的等离子体共振峰，同时显著改变表面形貌。
