PPV derivative/ZnO nanorods heterojunction: Fabrication, Characterization and Near-UV light sensor development

[Display omitted] •We have fabricated a PPV-C6/ZnO NRs heterojunction by a simple and low cost method.•We have studied the structural and optical properties of the heterojunction.•I–V characteristics of EGa-In/Si/PPV-C6/ ZnO NRs /graphite devices were analyzed.•Photoelectrical study shows a potentia...

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Bibliographic Details
Published in:Materials research bulletin 2018-10, Vol.106, p.28-34
Main Authors: Jemmeli, Dhouha, Belhaj, Marwa, Ben Salem, Balkis, Jaballah, Nejmeddine, Yatskiv, Roman, Dridi, Chérif, Grym, Jan, Majdoub, Mustapha
Format: Article
Language:English
Subjects:
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
DISSOCIATION
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTRODES
FABRICATION
GRAPHITE
HETEROJUNCTIONS
Hybrid heterojunction
HYDROTHERMAL SYNTHESIS
ILLUMINANCE
J–V characteristics
LIGHT EMITTING DIODES
NANOSCIENCE AND NANOTECHNOLOGY
NANOSTRUCTURES
NEAR ULTRAVIOLET RADIATION
OPTICAL PROPERTIES
Photoluminescence
POLYMERS
PPV-C6
SEM
SENSORS
SPIN-ON COATING
UV light sensors
ZINC OXIDES
ZnO NRs
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Summary:[Display omitted] •We have fabricated a PPV-C6/ZnO NRs heterojunction by a simple and low cost method.•We have studied the structural and optical properties of the heterojunction.•I–V characteristics of EGa-In/Si/PPV-C6/ ZnO NRs /graphite devices were analyzed.•Photoelectrical study shows a potential opportunity for UV light sensor development. Poly(1,4-phenylenevinylene) derivative (PPV-C6) based solution was spin-coated onto hydrothermally grown and vertically aligned ZnO nanorods (ZnO NRs).The morphological and the optical properties of the PPV-C6/ZnO NRs hybrid heterojunction have been studied and shown a penetration of PPV-C6into the interspaces between the ZnO NRs with enhanced excitonic dissociation. The current–voltage characteristics in dark and under 395 nm LED illumination have been analyzed. A short-circuit current Jsc of 4691.42 μA/cm2, an open-circuit voltage Voc of 0.46 V giving rise to a responsivity of about 29.32 mA/W have been obtained for the illuminated graphite/PPV-C6/ZnO NRs/Si/EGa-In structure based near UV light sensor showing an enhanced responsivity by a factor of about 200 compared with bare ZnO NRs based one. We have succeeded in the development of low cost near-UV light sensors by simple low temperature hydrothermal method using eco-friendly, low cost and easily fabricated electrodes.
ISSN:0025-5408
1873-4227
DOI:10.1016/j.materresbull.2018.05.017