TY - JOUR
T1 - Protonation and charge transfer in polyaniline
T2 - An optical absorption study of the mixed solutions
AU - Dimitriev, O. P.
AU - Lavrik, N. V.
PY - 1997/10/15
Y1 - 1997/10/15
N2 - Interaction of polyaniline (PANI) with a protonating dopant, dodecylbenzenesulfonic acid (DBSA), and an organic electron acceptor, pentadecyltetracyanoquinodimethane (C15TCNQ), is studied in DMSO solutions, using optical absorption spectroscopy. Each of the two agents alone induces an absorption band at 417 nm, attributable to cation-radicals of PANI. Free carrier absorbance in the near-infrared is absent in the case of C15TCNQ. Moreover, the charge-transfer interaction between PANI and C15TCNQ suppresses a transition to the conductive state. When PANI/C15TCNQ mixtures are aged, a new band near 500 nm appears that can be attributed to an adduct of PANI and C15TCNQ.
AB - Interaction of polyaniline (PANI) with a protonating dopant, dodecylbenzenesulfonic acid (DBSA), and an organic electron acceptor, pentadecyltetracyanoquinodimethane (C15TCNQ), is studied in DMSO solutions, using optical absorption spectroscopy. Each of the two agents alone induces an absorption band at 417 nm, attributable to cation-radicals of PANI. Free carrier absorbance in the near-infrared is absent in the case of C15TCNQ. Moreover, the charge-transfer interaction between PANI and C15TCNQ suppresses a transition to the conductive state. When PANI/C15TCNQ mixtures are aged, a new band near 500 nm appears that can be attributed to an adduct of PANI and C15TCNQ.
KW - Optical absorption
KW - Polyaniline and derivatives
UR - http://www.scopus.com/inward/record.url?scp=0031245926&partnerID=8YFLogxK
U2 - 10.1016/s0379-6779(97)03882-4
DO - 10.1016/s0379-6779(97)03882-4
M3 - Article
AN - SCOPUS:0031245926
SN - 0379-6779
VL - 90
SP - 1
EP - 4
JO - Synthetic Metals
JF - Synthetic Metals
IS - 1
ER -