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Direct In Situ Hybridized Interfacial Quantification to Stimulate Highly Flexile Self-Powered Photodetector

Cite this: J. Phys. Chem. C 2018, 122, 23, 12177–12184
Publication Date (Web):May 21, 2018
https://doi.org/10.1021/acs.jpcc.8b02604
Copyright © 2018 American Chemical Society

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    Abstract

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    In contrary to the existing externally powered photodetectors, a reliable approach for self-powered photodetection is designed for the first time through an internally integrated concept via coupling of piezotronic with photonic effects. A flexile self-powered photodetector (F-SPPD) developed by one-dimensionally grown floral-like F-ZnO nanorods on a poly(vinylidene difluoride) substrate conjointly performs the tunability of optical properties through the exploitation of strain-induced piezoelectric potentials (σ+, σ) at the electrode interfaces. The experimental observation showed an ideal photodetector characteristics with a 1-fold increment in photoresponsivity (R365nm ∼ 22.76 mA/W) by lowered Schottky barrier heights (ΦSB1T, ΦSB2T) through externally governed tensile strain (+ε). Further, the self-powered operation mode of F-SPPD exhibited higher spectral sensitivity (5.69 mA/(W cm–2)) than that of the photodetector (3.47 mA/(W cm–2)) operated under unstrained condition. This work effectively brings in the direct integration ideology of two different systems into a single module toward the downscaling of device size and weight.

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    The Supporting Information is available free of charge on the ACS Publications website at DOI: 10.1021/acs.jpcc.8b02604.

    • Details on FESEM of hydrothermally treated seedless PVDF; optical image of S-PVDF film after hydrothermal treatment; film thickness profile (∼60 μm); FTIR spectrum of the pristine film; overview of conventional sensing system vs self-powered sensor; experimental setup for IV analysis and manually designed rotary setup (PDF)

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    This article is cited by 15 publications.

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    2. A. Jenifer, S. Sriram. Enhanced photocatalytic organic dye degradation activities of pristine and Zn-doped V2O5 nanoparticles. Applied Surface Science 2023, 611 , 155629. https://doi.org/10.1016/j.apsusc.2022.155629
    3. Hemant Kumar, Satyabrata Jit. Self-Powered Photodetector. 2023, 495-515. https://doi.org/10.1007/978-3-031-20510-1_21
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