In situ tuning of crystallization pathways by electron beam irradiation and heating in amorphous bismuth ferrite films.

ABSTRACT: The sculpting of crystalline materials from amorphous films by electron beam irradiation in transmission electron microscopy (TEM) offers an effective way for fabrication of nanostructure and devices. However, the synthesis of multifunctional complex oxide and related composites for possible device application is difficult to achieve. Here, we show that the crystallization pathways of amorphous bismuth ferrite films could be tuned by controlled electron beam irradiation and in situ heating in TEM. The results show that Bi segregates from amorphous films and then aggregates into crystalline nanoparticles (the particle size can be tuned by electron dose rates) under electron beam irradiation below 100 °C, while Bi₂Fe₄O₉ nanocrystals are observed at bou

SUBMITTER: Li Z 

PROVIDER: S-EPMC9081700 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature