Additive manufacturing of sensors and energy harvesting devices for its potential applications in flexible electronics, Internet of things, cloud computing are growing rapidly worldwide due to its flexibility in tailoring the process design, geometrical complexity, and microstructural engineering of materials for realizing the improved functional properties of devices as compared to conventional manufacturing routes. The development of force and strain sensor with the piezoelectric materials as compared to harnessing piezo resistivity could provide higher output voltage response and therefore could be used for energy harvesting applications. The piezoelectric nanogenerator (PENG) and Triboelectric nanogenerator(TENG) generates electrical energy from the mechanical energy surrounding it. For fabricating the flexible sensing and energy harvesting device, Polyvinydelene fluoride (PVDF) is recognised as one of the one potential polymeric material as it exhibits higher piezoelectric effect with greater flexibility, compared to other polymers. Generally, the PVDF with β phase has the piezoelectric property among the other phases such as α, γ, δ because of the presence of a desired orientation of dipoles (polar group) in it. The pristine PVDF consists of a non-polar phase, showing a low piezoelectric coefficient value. To get better piezoelectric properties, the presence of polar phase is essential and it can be produced from the non-polar phase by using method of electrical poling and Ionic Liquid method. The characteristic studies of X-ray diffraction, Fourier Transform Infrared and Raman Spectroscopy were used to reveal the formation of β – phase in the poled sample. The eletromechanical performance studies for sensor and energy harvesting device has been carried out and output response were evaluated.