Investigation of a Nanophotonic Sensor with Electrode Modified by Semiconductor Quantum Dots

Authors O.A. Sushko, M.M. Rozhitskii

Laboratory of Analytical Optochemotronics, Kharkiv National University of Radio Electronics, 14, Lenin Ave., 61166 Kharkiv, Ukraine

Issue Volume 6, Year 2014, Number 1
Dates Received 04 December 2013; published online 06 April 2014
Citation O.A. Sushko, M.M. Rozhitskii, J. Nano- Electron. Phys. 6 No 1, 01009 (2014)
PACS Number(s) 06.20.Dk, 42.50.Ex, 42.70Qs
Keywords Analytical signal, Analyte, Band gap (29) , Benzo[a]pyrene, Conduction band, Electrolysis, Electron transfer process, Langmuir-Blodgett technology, Luminescence (24) , Molecular orbitals, Nanophotonic sensor, Semiconductor quantum dots, Valence band.
Annotation This paper focuses on optical sensors, namely nanophotonic ones intended for liquid media contained polynuclear aromatics assay. Developed by us nanophotonic sensor includes optically transparent working electrode modified by quantum-dimensional structures such as spherical semiconductor quantum dots (QDs). Monomolecular layer of QDs is plotted onto the electrode by Langmuir-Blodgett technology. Particular attention is paid to the processes of assay in nanophotonic sensor. As an analyte we used polycyclic aromatic hydrocarbon (PAH) such as benzo[a]pyrene (BP), which is known for its carcinogenic properties. The developed nanophotonic sensor can be used in ecology for organic carcinogens detection in water objects of environment as well as for biomedical, physical chemical assays and some others.

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