Results 31 to 40 of about 58,332 (288)

Optical properties of cubic and rhombohedral GeTe [PDF]

, 2013
Calculations of the optical properties of GeTe in the cubic NaCl and rhombohedral ferroelectric structures are reported. The rhombohedral ferroelectric distortion increases the band gap from 0.11 eV to 0.38 eV.
Singh, David J.
core   +1 more source

Recent Progress in the Nanoscale Evaluation of Piezoelectric and Ferroelectric Properties via Scanning Probe Microscopy

Advanced Science, 2020
Piezoelectric and ferroelectric materials have garnered significant interest owing to their excellent physical properties and multiple potential applications.
Owoong Kwon, Daehee Seol, Huimin Qiao, Yunseok Kim   +3 more
doaj   +1 more source

Variation of contact resonance frequency during domain switching in PFM measurements for ferroelectric materials

Journal of Materiomics, 2020
Piezoresponse Force Spectroscopy (PFS) is a powerful technique widely used for measuring the nanoscale electromechanical coupling of the ferro-/piezo-electric materials. However, it is found that certain non-ferroelectric materials can also generate the “
Yue Liu, Yao Sun, Wanheng Lu, Hongli Wang, Zhongting Wang, Bingxue Yu, Tao Li, Kaiyang Zeng   +7 more
doaj   +1 more source

Optical and electrical properties of spray pyrolysis deposited nano-crystalline BiFeO3 films

AIP Advances, 2011
The nano-crystalline BiFeO3 were prepared under controlled substrate temperature by spray pyrolysis method. Their structural, optical and electrical properties were studied and correlated.
Annapu Reddy Venkateswarlu, G. D. Varma, R. Nath   +2 more
doaj   +1 more source

A Self-Powered Broadband Photodetector with High Photocurrent Based on Ferroelectric Thin Film Using Energy Band Structure Design

Crystals
Self-powered photodetectors have the advantages of high sensitivity, sustainability, and small size and have become a research hotspot in advanced optoelectronic systems.
Xing Gao, Xin Song, Shan Zhang, Xinxiang Yang, Pei Han, Liwen Zhang, Chunxiao Lu, Xihong Hao, Yong Li   +8 more
doaj   +1 more source

Electron Transport Properties of Composite Ferroelectrics

, 2013
We study electron transport in composite ferroelectrics --- materials consisting of metallic grains embedded in a ferroelectric matrix. Due to its complex tunable morphology the thermodynamic properties of these materials can be essentially different ...
Beloborodov, I. S., Glatz, A., Udalov, O. G.   +2 more
core   +1 more source

Perovskite‐Type Hybrid Ferroelectric Semiconductors: A Potential Photosensitive Candidate Family for New Optoelectronic Applications

Advanced Physics Research, 2023
Ferroelectricity, characterized by the reversible switching of spontaneous polarization (Ps) under external electric field, exists in polar crystalline materials without a spatial‐inversion symmetry.
Wenjing Li, Yu Ma, Haojie Xu, Junhua Luo, Zhihua Sun   +4 more
doaj   +1 more source

More ferroelectrics discovered by switching spectroscopy piezoresponse force microscopy?

, 2014
The local hysteresis loop obtained by switching spectroscopy piezoresponse force microscopy (SS-PFM) is usually regarded as a typical signature of ferroelectric switching.
Li, Faxin, Miao, Hongchen, Tan, Chi, Wei, Xiaoyong, Zhou, Xilong   +4 more
core   +1 more source

Excellent Energy Storage and Photovoltaic Performances in Bi_0.45Na_0.45Ba_0.1TiO₃-Based Lead-Free Ferroelectricity Thin Film

Ceramics
Inorganic dielectric films have attracted extensive attention in the field of microelectronic and electrical devices because of their wide operating temperature range, small size, and easy integration. Here, we designed and prepared eco-friendly (1-x)Bi0.
Jianhua Wu, Tiantian Zhang, Xing Gao, Lei Ning, Yanhua Hu, Xiaojie Lou, Yunying Liu, Ningning Sun, Yong Li   +8 more
doaj   +1 more source

Intrinsic polarization coupling in 2D α‐In2Se3 toward artificial synapse with multimode operations

SmartMat, 2021
Emulation of advanced synaptic functions of the human brain with electronic devices contributes an important step toward constructing high‐efficiency neuromorphic systems.
Jing Gao, Yue Zheng, Wei Yu, Yanan Wang, Tengyu Jin, Xuan Pan, Kian Ping Loh, Wei Chen   +7 more
doaj   +1 more source