Control of excitation spectra diffusion and energy transport in conjugated polymers using azo chromophore - Favarim, H. R.; Spadacio, D.; Zucolotto, Valtencir; Oliveira Junior, Osvaldo Novais de; Guimarães, Francisco Eduardo Gontijo (Encontro Nacional de Física da Matéria Condensada - ENFMC, 2005)