Raman spectra of polymer electrolytes based on poly(ethylene glycol) dimethyl ether, lithium perchlorate, and the ionic liquid 1-butyl-3- methylimidazolium hexafluorophosphate - Costa, Luciano Tavares da; Siqueira, Leonardo José Amaral de; Nicolau, Bruno Giuliano; Ribeiro, Mauro Carlos Costa (Vibrational Spectroscopy, 2010)