Results 41 to 50 of about 3,401 (147)

Enhanced pyroelectric response at morphotropic and field-induced phase transitions in ferroelectric hafnium oxide thin films

APL Materials, 2021
The hafnium oxide material class is characterized by the coexistence of several polymorphs between which phase transitions are induced by means of composition and external electric fields. Pyroelectric materials, which convert heat into electrical energy,
Clemens Mart, Thomas Kämpfe, Kati Kühnel, Malte Czernohorsky, Sabine Kolodinski, Maciej Wiatr, Wenke Weinreich, Lukas M. Eng   +7 more
doaj   +1 more source

Coupled pyroelectric-photovoltaic effect in 2D ferroelectric α-In 2 Se 3

npj 2D Materials and Applications
Pyroelectric and photovoltaic effects are vital in cutting-edge broadband sensors and solar energy harvesting. Recent advances revealed great potential of the bulk photovoltaic effect in two-dimensional (2D) materials to surpass the Shockley-Queiseer ...
Michael Uzhansky, Abhishek Rakshit, Yoav Kalcheim, Elad Koren   +3 more
doaj   +1 more source

Optimal speed of temperature change of a crystal in a pyroelectric X-ray radiation source

AIP Advances, 2018
In this work we present the results of the experimental studies of the dependence of the X-ray radiation on the temperature change speed of the lithium tantalate monocrystal in the pyroelectric source of the X-ray radiation.
A. S. Kubankin, A. S. Chepurnov, O. O. Ivashchuk, V. Yu. Ionidi, I. A. Kishin, A. A. Klenin, A. N. Oleinik, A. V. Shchagin   +7 more
doaj   +1 more source

Research on the Multiple Factors Influencing Human Identification Based on Pyroelectric Infrared Sensors

Sensors, 2018
Analysis of the multiple factors affecting human identification ability based on pyroelectric infrared technology is a complex problem. First, we examine various sensed pyroelectric waveforms of the human body thermal infrared signal and reveal a ...
Junwei Yan, Ping Lou, Ruiya Li, Jianmin Hu, Ji Xiong   +4 more
doaj   +1 more source

Ferroelectric Devices for In‐Memory and In‐Sensor Computing

Advanced Science, EarlyView.
Inspired by biological systems, in‐memory and in‐sensor computing overcome von Neumann bottlenecks. Ferroelectric devices can mimic synaptic functions and sense stimuli like light or force, therefore are ideal for these paradigms. This review introduces the ferroelectric devices applied for in‐memory and in‐sensor computing, covering their structures ...
Hong Fang, Ronghuan Xie, Qiang Cao, Shishen Yan, Xiaolin Wang, Limei Zheng   +5 more
wiley   +1 more source

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

Advanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Maximum self‐generated electric field induced by pyroelectricity of PZT 95/5

International Journal of Ceramic Engineering & Science, 2021
Electric field induced by pyroelectric effect is often observed in the ferroelectric devices when they subject to temperature change. But the maximum value of ferroelectric field is still unknown.
Fu‐Ping Zhang, Ling‐Feng Wu, Tao Zhang, Qing‐hai Xie, Yu‐Sheng Liu, Hong‐liang He, Yi‐Xuan Jiang, Heng‐Chang Nie   +7 more
doaj   +1 more source

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

Advanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su, Yanda Zhu, Hao Peng, Manman Li, Xuzihan Zhang, Meixiao Wu, Siyuan Zhang, Yuhan Zeng, Jiwen Liao, Ming Luo, Hetaishan Huang, Yutong Wang, Sean Li, Wenxian Li   +13 more
wiley   +1 more source

Enhanced pyroelectric properties of Bi1−xLaxFeO3 thin films

APL Materials, 2019
There is growing interest in the study of thin-film pyroelectric materials because of their potential for high performance thermal-energy conversion, thermal sensing, and beyond.
Lei Zhang, Yen-Lin Huang, Gabriel Velarde, Anirban Ghosh, Shishir Pandya, David Garcia, Ramamoorthy Ramesh, Lane W. Martin   +7 more
doaj   +1 more source

Ferroelectric Catalysts in the Hydrogen Evolution Reaction: A Perspective

Advanced Science, EarlyView.
This perspective summarizes recent advances in ferroelectric (FE) catalysts for the hydrogen evolution reaction (HER). It first introduces HER fundamentals and FE mechanisms, then classifies FE catalysts into single‐phase, single‐atom‐modified, heterostructured, and other engineered types, with representative examples.
Rongxuan Lu, Weizhen Meng, Zhenxiang Cheng, Judy N. Hart, Michael Ferry, Sean Li, Wenxian Li   +6 more
wiley   +1 more source