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Porous-Spherical Cr[sub.2]O[sub.3]-Cr[sub.3]-Polypyrrole/Polypyrrole Nanocomposite Thin-Film Photodetector and Solar Cell Applications

Coatings (Basel), 2023-07, Vol.13 (7) [Peer Reviewed Journal]

COPYRIGHT 2023 MDPI AG ;ISSN: 2079-6412 ;EISSN: 2079-6412 ;DOI: 10.3390/coatings13071240

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  • Title:
    Porous-Spherical Cr[sub.2]O[sub.3]-Cr[sub.3]-Polypyrrole/Polypyrrole Nanocomposite Thin-Film Photodetector and Solar Cell Applications
  • Author: Rabia, Mohamed ; Trabelsi, Amira Ben Gouider ; Elsayed, Asmaa M ; Alkallas, Fatemah H
  • Subjects: Hydrolysis
  • Is Part Of: Coatings (Basel), 2023-07, Vol.13 (7)
  • Description: This study utilized the exceptional optical and electrical properties of polypyrrole (Ppy) to fabricate high-performance optoelectronic devices. The synthesis of the porous-spherical Cr[sub.2]O[sub.3]-Cr(OH)[sub.3]-Ppy/Ppy nanocomposite thin film was achieved by preparing a second thin film of Cr[sub.2]O[sub.3]-Cr(OH)[sub.3]-Ppy on the initial Ppy film using K[sub.2]Cr[sub.2]O[sub.7] as an oxidant. The nanocomposite’s properties were thoroughly characterized, including XRD and optical absorbance analyses. The XRD analysis showed that the crystalline size of the nanocomposite was 20 nm, while optical absorbance analysis demonstrated that the nanocomposite had a higher absorbance in a wide optical range compared to Ppy nanomaterials, as evidenced by the enhancement in bandgap (Eg) value from 3.33 eV for Ppy to 1.89 eV for Cr[sub.2]O[sub.3]-Cr(OH)[sub.3]-Ppy. The fabricated nanocomposite thin film exhibited excellent light-sensing behavior, as evidenced by the evaluation of J[sub.ph] values under different light conditions and various monochromatic lights with a detectivity (D) of 3.6 × 10[sup.6] Jones (at 340 nm). The device demonstrated its potential as a solar cell, with a short circuit current (J[sub.SC]) of 13 µA and an open circuit voltage (V[sub.OC]) of 1.91 V. Given the nanocomposite’s low cost, high technical production, and superior optoelectronic properties, it has significant potential for use in commercially available high-tech devices.
  • Publisher: MDPI AG
  • Language: English
  • Identifier: ISSN: 2079-6412
    EISSN: 2079-6412
    DOI: 10.3390/coatings13071240
  • Source: Alma/SFX Local Collection
    ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
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