A.c. impedance of frozen junction polymer light-emitting electrochemical cells

@inproceedings{Yongfang1998AcIO,
  title={A.c. impedance of frozen junction polymer light-emitting electrochemical cells},
  author={Li Yong-fang and Jun Gao and Deli Wang and Yu Gang and Yong Cao and Alan J. Heeger},
  year={1998}
}
Abstract The structure of the frozen p—i—n junction in polymer light-emitting electrochemical cells (LECs) is studied by measurements of the a.c. impedance of LEC devices. Impedance plots of frozen junction LECs show characteristics that are typical of polymer light-emitting diodes. The data demonstrate the ‘freeze-out’ of ionic mobility. The frequency-independent and voltage-independent capacitance of the frozen junction supports the conclusion that the insulating ‘i’ in the p—i—n junction… CONTINUE READING

Citations

Publications citing this paper.