Ferroelectric PbTiO3 nanotube arrays synthesized by hydrothermal method

Abstract

Lead titanate nanotube arrays with perfect nanotubular structure and excellent piezoelectric property were formed by hydrothermal method. The nanotubular structure proved to have strong influences on both Curie temperature and piezoelectric properties of PbTiO3 nanotube arrays. The Curie temperature of PbTiO3 nanotube arrays was detected to be 620°C. Perfect piezoelectric properties with a maximum displacement of 0.88nm and d33* of 120pmV−1 were observed in PbTiO3 nanotube arrays.