Photovoltaic and triboelectrification empowered light-weight flexible self-charging asymmetric supercapacitor cell for self-powered multifunctional electronics

Anirban Maitra, Ranadip Bera, Lopamudra Halder, Aswini Bera, Sarbaranjan Paria, Sumanta Kumar Karan, Suman Kumar Si, Anurima De, Suparna Ojha and Bhanu Bhusan Khatua

Renewable and Sustainable Energy Reviews, 2021, vol. 151, issue C

Abstract: Herein, we highlight the simplistic fabrication of a light-weight, flexible self-charging power pack by the prudent integration of two paper-based high-performance triboelectric nanogenerators (HPTENGs), one commercial semi-flexible photovoltaic/solar cell and a paper-based all-solid-state asymmetric-type supercapacitor (ASSASC) with optimized performance. Each HPTENG unit comprises of a ~20 wt% barium titanate nanoparticles loaded surface micropatterned post-polled PDMS composite (PDMS–20BTO) film-strip impregnated with graphite coated Whatman® 41 filter paper (GFP) as negative and a polypyrrole electrodeposited GFP as positive triboelectric friction layers, respectively. Contrariwise, the ASSASC consists of a nickel-cobalt-molybdenum oxide–graphitic C3N4 hybrid composite coated GFP (NCMO–gCN2/GFP) as positive and a graphitic C3N4 modified reduced graphene oxide coated GFP (gCN–m–RGO/GFP) as negative electrodes, separated by a thin PVA–KOH gel-type electrolyte membrane. Finally, under deformations/stress and illumination of solar light individually on top of our photovoltaic and HPTENGs driven self-charging ASSASC (PTSCASC) power pack, it efficaciously generates electrical energy and consequently stores this generated energy as electrochemical energy for sustainable power supply. Our self-powered PTSCASC# power pack prototype (with two ASSASCs) has been effectually integrated with a medical smart patch for electric pulsatile mediated controlled drug release. Hence, our as-designed self-charging power pack possesses immense potentials for self-powered multifunctional electronics and smart e-healthcare monitoring systems.

Keywords: Flexible; Self-charging; Triboelectric nanogenerators; Photovoltaic cell; Asymmetric-type supercapacitor; Controlled drug release; e-healthcare monitoring (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1016/j.rser.2021.111595

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