Next-generation memory and energy harvesting devices require a higher output performance for charging lectric devices. Generally, it is very limited to control charge transfer through triboelectricity in triboelectric materials. Here, using ferroelectric polarization, it is found that both the amount and direction of charge transfer in triboelectric materials can be controlled. The ferroelectric-dependent triboelectricity in a ferroelectric co-polymer film is explored using atomic force microscopy (AFM). Ferroelectric surfaces are rubbed with the AFM tip after poling with positive and negative bias voltages to achieve a triboelectric effect. The surface potential of the positively (negatively) poled area becomes smaller (larger) after rubbing the film surface with the AFM tip. Furthermore, the power output from the triboelectric nanogenerator is dependent on the ferroelectric polarization state. The results indicate that the amount and direction of the charge transfer in triboelectricity can be controlled by the ferroelectric polarization state.
|Number of pages||7|
|Journal||Advanced Functional Materials|
|Publication status||Published - 2016 May 10|
Bibliographical noteFunding Information:
K.Y.L. and S.K.K. contributed equally to this work. This research was supported by the Basic Science Research program through the National Research Foundation (NRF) of Korea, funded by the Ministry of Science, ICT & Future Planning (2014R1A4A1008474, 2015R1A2A1A05001851, and 2009-0083540).
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics