Abstract
The glancing angle deposition (GLAD) technique has been employed to synthesize TiO2 nanowire clusters (NWCs) covered with Ag nanoparticles (NPs) on Si (n-type) substrates. The Field emission scanning electron microscopy (FE-SEM) characterization has shown Ag NPs distribution on the TiO2 NWCs surface. The photoluminescence emission intensity from the TiO2 NWCs/Ag NPs sample reduced due to the formation of Ag-O complex on the TiO2 surface. The Current (I) — voltage (V) characteristics have been measured for TiO2 NWCs/Ag NPs structure under white light and dark conditions. The ideality factor ∼ 16.1 for TiO2 NWCs/Ag NPs and ∼ 7.04 for TiO2 NWCs based detectors have been calculated. The switching on/off time response shows rise time (Tr) of 23.60 sec and decay time (Tf) of 23.11 sec for TiO2 NWCs/Ag NPs detector.
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