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Ag nanorod arrays prepared by oblique angle vapor deposition (OAD) represent regular, large area substrates for surface-enhanced Raman scattering (SERS) spectroscopy. We studied uniformity and spectral reproducibility of silver OAD-fabricated substrates (AgOADs) by spectral mapping of methylene blue. The results demonstrate good reproducibility apart from occasional "hot-spot" sites where the intensity is higher. The number of "hot-spots" represents 2%–6% of SERS-active sites of mappingdoi:10.1155/2015/729231 fatcat:4am72kd6urdmbkv5vzcnk4jnsa