Increasing the work function of poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate) by ultraviolet irradiation
2007; American Institute of Physics; Volume: 91; Issue: 9 Linguagem: Inglês
10.1063/1.2777147
ISSN1520-8842
AutoresYow-Jon Lin, Fuming Yang, Chi-Yen Huang, Wei‐Yang Chou, Jay Chang, Yi-Chun Lien,
Tópico(s)Organic Electronics and Photovoltaics
ResumoThe effects of ultraviolet (UV) irradiation on the work function of poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate) (PEDOT:PSS) have been investigated in this study. Spectroscopic methods [x-ray photoelectron spectroscopy and Raman spectroscopy (532nm excitation)] and electrical conductivity measurements were used to characterize the electrical conducting polymer PEDOT:PSS prepared by UV irradiation. The authors found that UV irradiation could lead to an increase in the work function and the enhancement of electrical conductivity of PEDOT:PSS, resulting from a decrease in the number of the charge-trapping-related defects and the formation of linear or expanded-coil conformation.
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