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6 papers · 2 filters
Phase-field modeling and electronic structural analysis of flexoelectric effect at 180° domain walls in ferroelectric PbTiO3
Yu-Jia Wang, Jiangyu Li, Yin-Lian Zhu +1
Flexoelectric effect is the coupling between strain, polarization and their gradients, which are prominent at the nanoscale. Although this effect is important to understand nanostr…
Imaging Ferroelectric Domains via Charge Gradient Microscopy Enhanced by Principal Component Analysis
Ehsan Nasr Esfahani, Xiaoyan Liu, Jiangyu Li
Local domain structures of ferroelectrics have been studied extensively using various modes of scanning probes at the nanoscale, including piezoresponse force microscopy (PFM) and…
Touching is believing: interrogating organometal halide perovskite solar cells at the nanoscale via scanning probe microscopy
Jiangyu Li, Boyuan Huang, Ehsan Nasr Esfahani +4
Halide perovskite solar cells based on CH3NH3PbI3 and related materials have emerged as the most exciting development in the next generation photovoltaic technologies, yet the micr…
Resolving Local Electrochemistry at the Nanoscale via Electrochemical Strain Microscopy: Modeling and Experiments
Ahmad Eshghinejad, Ehsan Nasr Esfahani, Chihou Lei +1
Electrochemistry is the underlying mechanism in a variety of energy conversion and storage systems, and it is well known that the composition, structure, and properties of electroc…
High density array of epitaxial BiFeO3 nanodots with robust and reversibly switchable topological domain states
Zhongwen Li, Yujia Wang, Guo Tian +18
The exotic topological domains in ferroelectrics and multiferroics have attracted extensive interest in recent years due to their novel functionalities and potential applications i…
Quantitative Nanoscale Mapping of Three-Phase Thermal Conductivities in Filled Skutterudites via Scanning Thermal Microscopy
Ehsan Nasr Esfahani, Feiyue Ma, Shanyu Wang +3
In the last two decades, a nanostructuring paradigm has been successfully applied in a wide range of thermoelectric materials, resulting in significant reduction in thermal conduct…