TY - JOUR
T1 - Long-lived photoexcited states in polydiacetylenes with different molecular and supramolecular organization
AU - Comoretto, Davide
AU - Moggio, Ivana
AU - Cuniberti, C.
AU - Dellepiane, Giovanna
AU - Giardini, Mario Ettore
AU - Borghesi, Alessandro
PY - 1997
Y1 - 1997
N2 - With the aim of determining the importance of the molecular and supramolecular organization on the excited states of polydiacetylenes, we have studied the photoinduced absorption spectra of the red form of poly[1,6-bis(3,6-didodecyl-N-carbazolyl)-2,4-hexadiyne] (polyDCHD-S) and the results compared with those of the blue form of the same polymer. An interpretation of the data is given in terms of both the conjugation length and the interbackbone separation also in relation to the photoinduced absorption spectra of both blue and red forms of poly[1,6-bis(N-carbazolyl)-2,4-hexadiyne] (polyDCHD), which does not carry the alkyl substituents on the carbazolyl side groups. Information on the above properties is derived from the analysis of the absorption and Raman spectra of this class of polydiacetylenes.
AB - With the aim of determining the importance of the molecular and supramolecular organization on the excited states of polydiacetylenes, we have studied the photoinduced absorption spectra of the red form of poly[1,6-bis(3,6-didodecyl-N-carbazolyl)-2,4-hexadiyne] (polyDCHD-S) and the results compared with those of the blue form of the same polymer. An interpretation of the data is given in terms of both the conjugation length and the interbackbone separation also in relation to the photoinduced absorption spectra of both blue and red forms of poly[1,6-bis(N-carbazolyl)-2,4-hexadiyne] (polyDCHD), which does not carry the alkyl substituents on the carbazolyl side groups. Information on the above properties is derived from the analysis of the absorption and Raman spectra of this class of polydiacetylenes.
UR - http://link.aps.org/doi/10.1103/PhysRevB.56.10264
U2 - 10.1103/PhysRevB.56.10264
DO - 10.1103/PhysRevB.56.10264
M3 - Article
SN - 1098-0121
VL - 56
SP - 10264
EP - 10267
JO - Physical Review B
JF - Physical Review B
IS - 16
ER -