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

0499947 - ÚFE 2019 RIV GB eng J - Journal Article
Jemmeli, D. - Belhaj, M. - Ben Salem, B. - Jaballah, N. - Yatskiv, Roman - Dridi, Ch. - Grym, Jan - Majdoub, M.
PPV derivative/ZnO nanorods heterojunction: Fabrication, Characterization and Near-UV light sensor development.
Materials Research Bulletin. Roč. 106, October (2018), s. 28-34. ISSN 0025-5408. E-ISSN 1873-4227
Institutional support: RVO:67985882
Keywords : Photoluminescence * Hybrid heterojunction * UV light sensors
OECD category: Electrical and electronic engineering
Impact factor: 3.355, year: 2018

Poly(1,4-phenylenevinylene) derivative (PPV-C-6) based solution was spin-coated onto hydrothermally grown and vertically aligned ZnO nanorods (ZnO NRs).The morphological and the optical properties of the PPV-C-6/ZnO NRs hybrid heterojunction have been studied and shown a penetration of PPV-C(6)into 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 J(sc) of 4691.42 mu A/cm(2), an open-circuit voltage V-oc 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
Permanent Link: http://hdl.handle.net/11104/0292131