Pyroelectric power generation in PLZST material by temperature dependent phase transformation

Enhancing low‐temperature energy harvesting by lead‐free ferroelectric Ba(Zr0.1Ti0.9)O3

“…30 Hard-type pyroelectric materials like the Bi 0.5 Na 0.5 TiO 3 (BNT) [31][32][33] or K 0.5 Na 0.5 NbO 3 (KNN) [34][35][36] families exhibit a high Curie temperature T C and a large coercive field E C . This results in two main problems: (1) a potential negative energy density corresponding to a crossover in the cycle loop appeared at low temperature 37,38 and (2) the necessity of a high-temperature boost to maximize the energy harvesting ability during a phase transition. [39][40][41] Both make hard-type materials unsuitable for application under such conditions in their current form.…”