Zhang Wenbin, Zhang Xinyi, Ding Jie, Dong Shaojun. IN-SITU RAMAN STUDIES ON ELECTROCHEMICAL DOPING PROCESS OF POLYPYRROLE[J]. Chinese Journal of Luminescence, 1993,14(2): 193-196
Zhang Wenbin, Zhang Xinyi, Ding Jie, Dong Shaojun. IN-SITU RAMAN STUDIES ON ELECTROCHEMICAL DOPING PROCESS OF POLYPYRROLE[J]. Chinese Journal of Luminescence, 1993,14(2): 193-196DOI:
In-situ Raman spectra were recorded during the process of electrochemical redox of polypyrrole.The intensities of the four Raman peaks of polypyrrole [1566cm
-1
(ν
c=c
)
1315cm
-1
(ν
c-c
)
1040cm
-1
(δ
c-H
)and 986Cm
-1
(δ
ring
)] are very sensitive to doping
and change reversion in doping-undoping cycles.The intensities decrease drastically with doping level
and disappear at the electrode potential of about+0.1V vs.Ag/AgCl.The influence of anion size on doping was distinguished by the in-situ Raman technique.It is found that small size is in favor of doping.