[Materials Research Express] Electric Field Induced Structural Color of Fe3O4 and Fe3O4@C nanoparticles and their dielectric spectroscopy
作者：Jianfei Zhang, Aihua Sun*, Xuanxuan Qiao, Chengyi Chu, Chongyang Wang, Tao Chen
關(guān)鍵字：nanoparticles, structural color, suspensions, core-shell, electric field
論文來源：期刊
具體來源：Materials Research Express 1 (2014) 045037
發(fā)表時(shí)間：2014年
The photonic properties of
Fe3O4@C and Fe3O4 colloidal suspensions in an
external electric field have been investigated. Compared to Fe3O4, the
Fe3O4@C
colloidal suspension has been found to have a wider tunability range of the
optical spectrum and a stronger electric response in low electric fields. Based on
the dielectric spectroscopy analysis of
Fe3O4@C and Fe3O4 colloidal suspensions,
a dielectric loss model has been proposed to explain the significant effect
of the carbon shell on the electrically modulated photonic property of the
Fe3O4@C suspension.