The research team headed by Professor Jiagang Wu has published a 90-page comprehensive research paper entitled Recent Development in Lead-free Perovskite Piezoelectric Bulk Materials in the prestigious Progress in Materials Science (IF=23.75，a journal with a five year impact factor of 33.19. This has been the second time Professor Wu’s team has published in this journal. Sichuan University has the sole authorship and the first author is Ting Zheng, a PhD candidate of our university. She is the first doctoral student to publish in this journal as a first author. Professor Jiagang Wu is the corresponding author.
The papers's main point covers as follows: The elimination of lead in piezoelectric applications remains challenging. Since the advances in the piezoelectricity were found in the perovskite family in 2000, studies into lead-free piezoelectric materials have grown exponentially in the fields of condensed matter physics and materials science. In this review, we highlighted the compelling physical properties of lead-free piezoelectric perovskite materials and summarized their state-of-the-art progress, with an emphasis on recent advances in the piezoelectric effect. We mainly introduced the unique advances in lead-free perovskites piezoelectric bulk materials, along with the descriptions of phase boundaries, domain configurations, and piezoelectric effects, and then the main physical mechanisms of high piezoelectricity were summarized. In particular, the applications of lead-free materials were also introduced and evaluated. Finally, challenge and perspective are featured on the basis of their current developments. This review provides an overview of the development of lead-free piezoelectric perovskite materials in the past fifteen years along with future prospects, which may inspire material design toward practical applications based on their unique properties.
Prof. Jiagang Wu has published more than 150 papers in the field of ferroelectric and piezoelectric materials as the first author or corresponding author since 2007 [Chem. Rev. 2015, 115, 2559, Prog. Mater. Sci., 2016, 84, 335, J. Am. Chem. Soc. (2014, 136, 2905, 2016, 138, 15459), Adv. Mater., 2016, 28, 8519, Energy Environ. Sci., 2017, 10, 528, etc]. All the published papers have been cited more than 3100 times, and H index is 36. He received his bachelor degree from Sichuan University in 2003 and Ph. D. degree from Sichuan University in 2008, and worked as the Singapore Millennium Postdoctoral Fellowships (SMF-PDF) at National University of Singapore from 2008.11-2010.11. He was an associate professor at Department of Materials Science of Sichuan University from 2011.2 to 2015.9. Since 2015.9, he has been promoted to professor in Sichuan University. Currently, he is vice dean of the College of Materials Science and Engineering in Sichuan University. His main research interest is the composition design and properties modification of ferroelectric/piezoelectric materials.
The above research work has received Outstanding Youth Science Foundation funds (51722208) and Key Project Foundation funds (51332003) of the National Natural Science Foundation of China
