SERS-measured and DFT-calculated vibrational spectra of p-Aminoazobenzene Tingchao He, Pengwei Li, Zhipeng Cai and Yujun Mo Eur. Phys. J. Appl. Phys., 38 1 (2007) 15-19 Published online: 14 February 2007 DOI: 10.1051/epjap:2007035