PMID- 30780144
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20190325
LR  - 20190325
IS  - 1361-6528 (Electronic)
IS  - 0957-4484 (Linking)
VI  - 30
IP  - 23
DP  - 2019 Jun 7
TI  - Probing electromechanical behaviors by datacube piezoresponse force microscopy in 
      ambient and aqueous environments.
PG  - 235701
LID - 10.1088/1361-6528/ab0866 [doi]
AB  - For assisting the in-depth investigations of widespread electromechanical 
      phenomena in functional materials, piezoresponse force microscopy (PFM) has 
      gradually evolved to realize full information-flow acquisition and fit the 
      conductive liquid working environments. Here, we designed data cube (DCUBE) based 
      PFM to collect the electromechanical effect into a high-dimensional array of 
      piezoresponse by adding ac bias with a wide range of frequencies to the probe. 
      The electromechanical and mechanical spectra can be consecutively extracted at 
      each pixel in the intermittent-contact mode. High-resolution ferroelectric 
      domains of the poled LiNbO(3) were mapped, corresponding to the ideal phase 
      contrasts of about 180 degrees  in air, decane, and deionized water. Rich information 
      detection and non-contact mode in DCUBE-PFM bring many merits on the 
      electromechanical characterizations, especially for elastic-inhomogeneous 
      surfaces and soft materials. Moreover, we systematically reveal the Debye 
      screening effect and time-resolved field-oriented ion dynamics, which play 
      crucial roles in the reduction of PFM spatial resolution in electrolytes. These 
      physical discussions provide strategies to further realize high-resolution 
      electromechanical imaging in highly conductive liquid environments.
FAU - Cui, Anyang
AU  - Cui A
AD  - Key Laboratory of Polar Materials and Devices (MOE) and Technical Center for 
      Multifunctional Magneto-Optical Spectroscopy (Shanghai), Department of Electronic 
      Engineering, East China Normal University, Shanghai 200241, People's Republic of 
      China.
FAU - Wolf, Peter De
AU  - Wolf P
FAU - Ye, Yan
AU  - Ye Y
FAU - Hu, Zhigao
AU  - Hu Z
FAU - Dujardin, Antoine
AU  - Dujardin A
FAU - Huang, Zhuangqun
AU  - Huang Z
FAU - Jiang, Kai
AU  - Jiang K
FAU - Shang, Liyan
AU  - Shang L
FAU - Ye, Ming
AU  - Ye M
FAU - Sun, Hao
AU  - Sun H
FAU - Chu, Junhao
AU  - Chu J
LA  - eng
PT  - Journal Article
DEP - 20190219
PL  - England
TA  - Nanotechnology
JT  - Nanotechnology
JID - 101241272
EDAT- 2019/02/20 06:00
MHDA- 2019/02/20 06:01
CRDT- 2019/02/20 06:00
PHST- 2019/02/20 06:00 [pubmed]
PHST- 2019/02/20 06:01 [medline]
PHST- 2019/02/20 06:00 [entrez]
AID - 10.1088/1361-6528/ab0866 [doi]
PST - ppublish
SO  - Nanotechnology. 2019 Jun 7;30(23):235701. doi: 10.1088/1361-6528/ab0866. Epub 
      2019 Feb 19.