Title :
Patterned photochemical deposition on domain engineered ferroelectric single crystals
Author :
Lau, Kei May ; Yun Liu ; Qian Li ; Withers, Ray L. ; Zhenrong Li ; Zhuo Xu
Author_Institution :
Res. Sch. of Chem., Australian Nat. Univ., Canberra, ACT, Australia
Abstract :
The photochemical deposition of silver on (001)-oriented 0.25Pb(In1/2Nb1/2)O3-0.44Pb(Mg1/3Nb2/3)O3-0.31PbTiO3 (PIN-PMN-PT) ferroelectric single crystals is investigated via piezoresponse force microscopy (PFM) and Kelvin probe force microscopy (KPFM). Selective photochemical deposition within c+ domains is attained by manipulating the photoreaction time. Enhanced photochemical reduction at c-/c+ domain boundaries is achieved by controlling the domain poling voltage and the scanning direction of the tip during domain switching. These phenomena are explained by polarisation band bending at domain boundaries and tip induced charge injection during domain switching. This work provides insight into obtaining an arbitrary spatial distribution of photodeposited metal on ferroelectric materials.
Keywords :
crystal growth from solution; dielectric polarisation; domain boundaries; electric domains; lead compounds; (001)-oriented ferroelectric single crystals; Kelvin probe force microscopy; Pb(In0.5Nb0.5)O3-Pb(Mg0.33Nb0.67)O3-PbTiO3; arbitrary spatial distribution; domain boundaries; domain engineered ferroelectric single crystals; domain poling voltage; domain switching; enhanced photochemical reduction; patterned photochemical deposition; photoreaction time; piezoresponse force microscopy; polarisation band bending; selective photochemical deposition; tip induced charge injection; tip scanning direction; Crystals; Electric potential; Silver; Surface topography; Surface treatment; Switches; domain switching; ferroelectrics; photochemical deposition; photoreduction; surface potential;
Conference_Titel :
Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices & Workshop on Piezoresponse Force Microscopy (ISAF/IWATMD/PFM), 2014 Joint IEEE International Symposium on the
Conference_Location :
State College, PA
DOI :
10.1109/ISAF.2014.6922992
