Morphology control and piezoelectric response of Na_0.5Bi_0.5TiO₃synthesized via a hydrothermal method

Abstract

NBT spherical agglomerates, nanowires and microcubes with clear domain structures and obvious polarization switching behaviors were synthesized by a hydrothermal method.

Morphology control and large piezoresponse of hydrothermally synthesized lead-free piezoelectric (Bi0.5Na0.5)TiO3 nanofibres

“…These analyses prove that both morphologies include Na, Bi, Ti and O with the approximate atomic ratio of 1 : 1 : 2 : 6, which is in good agreement with the nominal stoichiometric ratio of BNT material. 29 Fig . 6a shows the bright eld TEM image of a single BNT nanober with a diameter about 150 nm synthesised under the optimal conditions.…”

Flowing water enabled piezoelectric potential of flexible composite film for enhanced photocatalytic performance

“…The amplitude butterfly loop of PV-N shifts to a positive voltage, implying the presence of internal electric field inside the film substrate PV-N ( Fig. 6 (f)) [37]. The results demonstrate that the attendance of N inside PV endows the film substrate with superior ferroelectric property.…”

Ultra-high discharged energy density capacitor using high aspect ratio Na0.5Bi0.5TiO3 nanofibers

“…BNT nanobers and BNT particles were obtained by controlling the hydrothermal reaction temperature and NaOH concentration, as reported in our previous study. 29 Specically, 0.005 mol of Bi(NO 3 ) 3 $5H 2 O, 0.01 mol of NaNO 3 and 0.005 mol of Ti(OC 4 H 9 ) 4 were dissolved in 7.5 mL of CH 3 COOH, 2.5 mL of distilled water, and 10 mL of CH 3 CH 2 OH. The Bi(NO 3 ) 3 $5H 2 O and NaNO 3 solutions were then mixed with Ti(OC 4 H 9 ) 4 solution, which subsequently formed a suspension with the addition of 10 M of NaOH solution and stirred for 1 h. The BNT nanobers and particles were synthesized at 150 C for 48 h with a NaOH concentration of 10 M and 170 C for 48 h with a NaOH concentration of 10 M, respectively.…”