期刊
APPLIED NANOSCIENCE
卷 9, 期 8, 页码 1971-1979出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s13204-019-01006-4
关键词
Transparent conductive films; PEDOT; PSS; Carbon nanotubes; OLED
资金
- Natural Science Foundation of Tianjin China [15JCZDJC37900]
- Science and Technology Plans of Tianjin China [17PTSYJC00050]
Carbon nanotubes (CNTs) and poly(3,4-ethylenedioxythiophene):poly (styrene sulfonate) (PEDOT:PSS) were employed to prepare sandwich-structured CNT/PEDOT:PSS/CNT transparent conductive films (TCFs) on flexible polyethylene terephthalate (PET) substrate by a spraying method. Based on the film morphology, we suggest that the CNTs were embedded in PEDOT:PSS. The structured film was more stable and did not peel off during post-processing nitric acid treatment. Ethylene glycol (EG) was used to improve the conductivity of the film, and the best ratio of PEDOT:PSS to EG was 10:5. XPS and Raman spectroscopy studies revealed that the non-conductive sodium dodecylbenzene sulfonate and PSS were removed during the nitric acid treatment. TCF sheet resistance as low as 95.15 ohm/sq at 87.72% transmittance (at a wavelength of 550 nm) was obtained. When the CNT/PEDOT:PSS/CNT-TCF was used as an anode in an organic light emitting diode, the high luminance of the device was 1598 cd/cm(2) at 14 V, and the maximum current efficiency was 1.5 cd/A at 13 V.
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