Triboelectric nanogenerators (TENG) provide possibility to harvest clean and sustainable mechanical energy from the ambient environment by utilizing triboelectrification and electrostatic induction across a frictional interface between materials with opposite relative polarity (tribo-polarity) [1] in accordance with triboelectric series [2]. Materials towards bottom of the series have stronger affinity for electrons while materials at the top are tended to loose electrons. Considering the positions of materials in the triboelectric series, polydimethylsiloxane (PDMS) and ethyl cellulose (EC), as frictional layers, were identified. EC is materials which is located in very top of triboelectric series, while PDMS is located in bottom, thus TENG based on these materials is expected to have high performance.