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
- 김대훈
- 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-ethlenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) electrode for use in highly flexible, 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/m(2) 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/m(2), 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 flexible 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/20.500.11754/175798
- ISSN
- 2045-2322
- DOI
- 10.1038/s41598-021-82980-0
- Appears in Collections:
- INDUSTRY-UNIVERSITY COOPERATION FOUNDATION[S](산학협력단) > ETC
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