Journal of Electronic Materials

, Volume 47, Issue 7, pp 3861–3868 | Cite as

Low-Temperature-Annealed Reduced Graphene Oxide–Polyaniline Nanocomposites for Supercapacitor Applications

  • Chen-Yu Liao
  • Hung-Hua Chien
  • Yu-Chuan Hao
  • Chieh-Wen Chen
  • Ing-Song Yu
  • Jian-Zhang Chen


Screen-printed reduced graphene oxide (rGO)–polyaniline (PANI) nanocomposites with/without post-annealing were used as the electrode of a supercapacitor with a polyvinyl alcohol/H2SO4 quasi-solid-state gel electrolyte. Annealing can remove part of the ineffective organic binders and thus enhance the supercapacitive performance. However, too high an annealing temperature may damage PANI, thus reducing the pseudocapacitance. Annealing at 100°C for 10 min results in the best achieved areal capacitance of 102.73 mF/cm2, as evaluated by cyclic voltammetry (CV) under a potential scan rate of 2 mV/s. The capacitance retention rate is 88% after 1000 CV cycles under bending with a bending radius of 0.55 cm.


Supercapacitor polyaniline graphene reduced graphene oxide quasi-solid-state gel electrolyte flexible electronics 


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This research is funded by the Ministry of Science and Technology of Taiwan under Grand Nos. MOST 105-2221-E-002-047-MY3 and MOST 106-2221-E-002-193-MY2. The clean room facility was provided by the Nano-Electro-Mechanical-Systems Research Center at National Taiwan University. The authors would like to thank Ms. Yuan-Tzu Lee of the Instrument Center at National Taiwan University for her assistance with the SEM operation.


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Copyright information

© The Minerals, Metals & Materials Society 2018

Authors and Affiliations

  1. 1.Graduate Institute of Applied MechanicsNational Taiwan UniversityTaipei CityTaiwan
  2. 2.Department of Materials Science and EngineeringNational Dong Hwa UniversityHualienTaiwan
  3. 3.Department of Chemical EngineeringNational Taiwan UniversityTaipei CityTaiwan

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