Organic light-emitting devices based on conducting polymer treated with benzoic acid
- Title
- Organic light-emitting devices based on conducting polymer treated with benzoic acid
- Author
- 김태환
- Issue Date
- 2021-02
- Publisher
- NATURE RESEARCH
- Citation
- SCIENTIFIC REPORTS, v. 11, NO 1, article no. 3885
- Abstract
- We report on the enhanced conductivity of the benzoic-acid-treated poly(3,4-ethlenedioxythiophe
ne):poly(styrene sulfonate) (PEDOT:PSS) electrode for use in highly fexible, organic light-emitting
devices (OLEDs). The conductivity of the benzoic-acid-treated PEDOT:PSS electrode increased from
1 to 1583.2 S/cm, in comparison with that of the pristine PEDOT:PSS electrode, due to a complex
factor of the H+
mole % and the dielectric constant of the benzoic solution. Among the post-treatment
methods of the PEDOT:PSS electrodes, the operating voltage at 1000 cd/m2
of OLEDs fabricated
utilizing the PEDOT:PSS electrode with the benzoic acid treatment has the lowest value, and its
maximum luminance is 24,400 cd/m2
, which are 1.54 and 2.15 times higher than those of OLEDs using
PEDOT:PSS electrodes treated with dimethyl sulfoxide and methanol, respectively. The luminance of
a fexible OLED with a benzoic-acid-treated PEDOT:PSS electrode after 1400 bending cycles decreased
to 83% of the initial luminance, resulting in excellent mechanical stability.
- URI
- https://www.nature.com/articles/s41598-021-82980-0https://repository.hanyang.ac.kr/handle/20.500.11754/175797
- ISSN
- 2045-2322
- DOI
- 10.1038/s41598-021-82980-0
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
- Files in This Item:
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