Sensitive Aluminum SPR Sensors Prepared by Thermal Evaporation Deposition
Chengchao He,
Yanhong Li,
Yuxiang Yang
et al.
Abstract:We used straightforward
thermal evaporation deposition to form
thin Al films on fused silica slides as surface plasmon resonance
(SPR) sensors in the blue visible region. Compared to other studies,
we achieved high-quality Al SPR sensors with a low vacuum level at
7 × 10–4 Pa and a low deposition rate between
1.47 and 3.41 nm/s. These Al films have an atomic-level surface roughness.
With our recipe, the requirements for deposition conditions are relaxed,
and the operation time is reduced remarkably. The experi… Show more
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