Details

Autor(en) / Beteiligte

• Gu, Ze-Zeng
• Tian, Ying
• Geng, Hong-Zhang
• Rhen, Danielle S.
• Ethiraj, Anita Sagadevan
• Zhang, Xingcai
• Jing, Li-Chao
• Wang, Tao
• Xu, Zi-Han
• Yuan, Xiao-Tong

Titel

Highly conductive sandwich-structured CNT/PEDOT:PSS/CNT transparent conductive films for OLED electrodes

Ist Teil von

• Applied nanoscience, 2019-11, Vol.9 (8), p.1971-1979

Ort / Verlag

Cham: Springer International Publishing

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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 Ω/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.