Electrode effects of a cellulose-based electro-active paper energy harvester

Zafar Abas, Heung Soo Kim, Lindong Zhai, Jaehwan Kim, Joo Hyung Kim

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

The possibility of cellulose-based electro-active paper (EAPap) as a vibrational energy transducer was investigated in this paper. Thin cellulose EAPap film specimens were prepared by the regenerating process. Three different metal electrodes of gold, silver and aluminum were deposited on a 50 × 50mm2 cellulose film using a thermal evaporator. An aluminum cantilever beam was used as a vibrational bender and EAPap was attached close to the root of the cantilever beam. The voltage output of the EAPap was measured under harmonic base excitation of the cantilever beam. The EAPap with aluminum electrode provided the largest open circuit voltage output compared to those with gold or silver electrodes. The output voltages of the EAPap increased linearly with increase of the area of the electrodes. The output voltages also increased with increasing input acceleration but became saturated at a certain magnitude. From the experimental results, we conclude that EAPap with metal electrodes can be used as a flexible energy harvesting transducer by external mechanical stress, and the output voltage is related to the electrode material due to its work function.

Original languageEnglish
Article number074003
JournalSmart Materials and Structures
Volume23
Issue number7
DOIs
StatePublished - Jul 2014

Keywords

  • electroactive paper
  • electrode
  • energy harvesting
  • energy transducer
  • vibration

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