Graphene-Silver-Induced Self-Polarized PVDF-Based Flexible Plasmonic Nanogenerator Toward the Realization for New Class of Self Powered Optical Sensor.
Plasmonic characteristics of graphene-silver (GAg) nanocomposite coupled with piezoelectric property of Poly(vinylidene fluoride) (PVDF) have been utilized to realize a new class of self-powered flexible plasmonic nanogenerator (PNG). A few layer graphene has been prepared in a facile and cost-effective method and GAg doped PVDF hybrid nanocomposite (PVGAg) is synthesized in a one-pot method. The PNG exhibits superior piezoelectric energy conversion efficiency (∼15%) under the dark condition. The plasmonic behavior of GAg nanocomposite makes the PNG highly responsive to the visible light illumination that leads to ∼50% change in piezo-voltage and ∼70% change in piezo-current, leading to enhanced energy conversion efficiency up to ∼46.6%. The piezoelectric throughput of PNG (e.g., capacitor charging performance) has been monitored during the detection of the different wavelengths of visible light illumination and showed maximum selectivity to the green light. The simultaneous mechanical energy harvesting and visible-light detection capabilities of the PNG are attractive for futuristic self-powered optoelectronic smart sensors and devices.
Tridib Kumar
TK
Sinha
Organic Nano-Piezoelectric Device Laboratory, Department of Physics, Jadavpur University , Kolkata 700032, India.
Sujoy Kumar
SK
Ghosh
Rishi
R
Maiti
Organic Nano-Piezoelectric Device Laboratory, Department of Physics, Jadavpur University , Kolkata 700032, India.|Department of Electronics, Netaji Nagar Day College , 170/436 N. S. C Bose Road, Kolkata 700092, India.
Santanu
S
Jana
Basudam
B
Adhikari
Organic Nano-Piezoelectric Device Laboratory, Department of Physics, Jadavpur University , Kolkata 700032, India.
Dipankar
D
Mandal
Samit K
SK
Ray
PVDF; graphene/silver composite; mechanical energy harvester; nanogenerator; plasmonic; self-powered optical sensor