Pregled bibliografske jedinice broj: 718239
Giant persistent photoconductivity in BaTiO3/TiO2 heterostructures
Giant persistent photoconductivity in BaTiO3/TiO2 heterostructures // Applied physics letters, 105 (2014), 152101-1 doi:10.1063/1.4897999 (međunarodna recenzija, članak, znanstveni)
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Naslov
Giant persistent photoconductivity in BaTiO3/TiO2 heterostructures
Autori
Plodinec, Milivoj ; Šantić, Ana ; Zavašnik, Janez ; Čeh, Miran ; Gajović, Andreja
Izvornik
Applied physics letters (0003-6951) 105
(2014);
152101-1
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
persistent photoconductivity; BaTiO3/TiO2 heterostructures; FEG-SEM; Raman spectroscopy; impedance spectroscopy
Sažetak
The persistent photoconductivity (PPC) effect in nanotube arrays of barium titanate and TiO2 (BTO/TiO2NT) was studied at room temperature under daylight illumination. The BTO/TiO2NT heterostructures exhibited a giant PPC effect that was six orders of magnitude higher than the dark conductivity, followed by a slow relaxation for 3 hours. The PPC effect in this material was explained by the existence of defects at the surfaces and the interfaces of the investigated heterostructures. The sample was prepared using a two-step synthesis: the anodization of a Ti-foil and a subsequent hydrothermal synthesis. The structural and electrical characteristics were studied by micro-Raman spectroscopy, FEG-SEM, and impedance spectroscopy.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Ustanove:
Institut "Ruđer Bošković", Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
