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has been cited by the following article:

• TITLE: Optical and NH3 Gas Sensing Properties of Hole-Transport Layers Based on PEDOT: PSS Incorporated with Nano-TiO2

  AUTHORS: Lam Minh Long, Tran Quang Trung, Vo-Van Truong, Nguyen Nang Dinh

  KEYWORDS: PEDOT:PSS+nc-TiO2 Composite, UV-Vis Spectra, J-V Characteristic, Thermal Sensing Property, Hole Transport Layer, NH3 Gas Sensing

  JOURNAL NAME: Materials Sciences and Applications, Vol.8 No.9, August 21, 2017

  ABSTRACT: Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) incorporated with nanocrystalline TiO2 powder (PEDOT:PSS+nc-TiO2) films were prepared by spin-coating technique. SEM surface morphology, UV-Vis spectra and NH3 gas sensing of were studied. Results showed that the PEDOT:PSS+nc-TiO2 film with a content of 9.0 wt% of TiO2 is most suitable for both the hole transport layer and the NH3 sensing. The responding time of the sensor made from this composite film reached a value as fast as 20 s. The rapid responsiveness to NH3 gas was attributed to the efficient movement of holes as the major charge carriers in PEDOT:PSS+nc-TiO2 composite films. Useful applications in organic electronic devices like light emitting diodes and gas thin film sensors can be envisaged.