The recent research interest on the ferroelectric materials are attributed to their various fascinating phenomena and their related applications in the field of photovoltaic (PV), photodetector, pyro-energy harvesting, and energy storage.[1] In this context, the research on enhancing the performance parameters and understanding the mechanisms are important to make them suitable towards facilitating their application potentials. Although lead-based ferroelectrics show superior physical properties, the environmental constraints imposed by the toxic lead element necessitates the importance of research towards lead-free ferroelectrics. In this regard, we have chosen an organic lead-free diisopropylammonium bromide (DIPAB) and inorganic BTO-based ferroelectrics to explore their energy-related characteristics. The materials are prepared in bulk and thin film form using different methods like chemical solution, solid state synthesis, thermal evaporation, and pulsed laser deposition (PLD) methods. We have successfully fabricated good quality DIPAB film revealing smooth surface and demonstrated their PV, and photodetector characteristics.[2] Also, the BTO-based Ba1-x(Bi0.5Li0.5)xTiO3 (BBLT) samples are investigated for their PV properties and thereby established a strong correlation among the structural, orbital, and bulk PV effect.[3] Additionally, the BBLT-based ferroelectric-metal oxide composites (BBLT:ZnO and BBLT:CuO) are analyzed for their pyroelectric energy harvesting application.[4] Interestingly, the fabricated polycrystalline BBLT thin film by PLD technique yielded better energy storage performance parameters. These results will be presented in this seminar.
References:
[1] N. Setter, D. Damjanovic, L. Eng, G. Fox, S. Gevorgian, S. Hong, A. Kingon, H. Kohlstedt, N. Y. Park, G. B. Stephenson, I. Stolitchnov, A. K. Taganstev, D. V. Taylor, T. Yamada, S. Streiffer, J. Appl. Phys. 100, 051606 (2006).
[2] Shanmuga Priya K, L. Kola, S. Pal, P. P. Biswas, and P. Murugavel, RSC Adv., 10, 25773 (2020).
[3] Shanmuga Priya K, S. Pal, M. Mohan, and P. Murugavel, ACS Appl. Electron. Mater., 7, 3790 (2023).
[4] Shanmuga Priya K, J. K. Bidika, S. Pal, D. Murali, B. R. K. Nanda, and P. Murugavel, APL Mat., 11, 111112, (2023).