PVDF/Ag₂CO₃nanocomposites for efficient dye degradation and flexible piezoelectric mechanical energy harvester

Abstract

Now-a-days, the increasing demand of flexible, light weight and portable electronic devices for high energy storage are paramount for sensors and actuators. In this context, flexible piezoelectric polymer nanocomposite has...

Lead-Free Perovskite Cs3Bi2I9-Derived Electroactive PVDF Composite-Based Piezoelectric Nanogenerators for Physiological Signal Monitoring and Piezo-Phototronic-Aided Strain Modulated Photodetectors

“…To check the mechanical stability and durability of the CBIP3-based PENG for long-term power generation, a fatigue test is performed under up to ∼18,000 cycles when an impart force of 2.5 N is applied, and it shows constant current and voltage response of ∼0.8 μA and 1.8 V, respectively, for the whole duration (Figure a,b). Moreover, the mechanical pressure sensitivity curve of the PNG is measured for the pressure range of ∼0.5–50 kPa. , It is observed that the pressure sensitivity for the low-pressure (0.5–10 kPa) range is 44 mV/kPa and for the 10–50 kPa range it is 20 mV/kPa (Figure c). This decrease in sensitivity is probably due to the theoretical limits of effective strain in piezoelectric materials in the high-pressure region .…”

“…Consequently, the maximum generated piezo-potential of 4 V is reached and the maximum displacement occurs in this structure (Figure S7­(iv,vi)). The results indicate that the experimentally observed piezo-potential is in good agreement with the FEM simulated results . Moreover, a control device was fabricated entirely from PDMS without using a CBIP composite.…”

“…The results indicate that the experimentally observed piezopotential is in good agreement with the FEM simulated results. 57 Moreover, a control device was fabricated entirely from PDMS without using a CBIP composite. This control device has a small output voltage signal under the same repetitive external force and eliminates the triboelectric phenomenon (Figure S8).…”

“…Moreover, the mechanical pressure sensitivity curve of the PNG is measured for the pressure range of ∼0.5−50 kPa. 17,57 It is observed that the pressure sensitivity for the low-pressure (0.5−10 kPa) range is 44 mV/kPa and for the 10−50 kPa range it is 20 mV/kPa (Figure 8c). This decrease in sensitivity is probably due to the theoretical limits of effective strain in piezoelectric materials in the high-pressure region.…”

Construction of a Magnetic γ‐Fe2O3/h‐BN Composite for Tetracycline Degradation by Visible‐Light‐Initiated Peroxydisulfate

“…Nowadays, the environment has been severely damaged since the industrial revolution [1] . The destruction of the environment threatened the survival and development of mankind [2–6] .…”