Structural evolution of PVDF during storage or annealing [PDF]
, 2004 The effect of annealing PVDF at temperatures above Tg and below Tm was investigated by differential scanning calorimetry (DSC), thermostimulated current spectroscopy (TSC) and solid-state NMR.
Beaume, Francois +4 more
core +3 more sources
Hybridization of Magnetism and Piezoelectricity for an Energy Scavenger based on Temporal Variation of Temperature [PDF]
, 2008 Autonomous microsystems are confronted today to a major challenge : the one of energy supply. Energy scavenging, i.e. collecting energy from the ambient environment has been developed to answer this problematic.
Basrour, S. +3 more
core +3 more sources
Temperature Field Analysis for PZT Pyroelectric Cells for Thermal Energy Harvesting
Sensors, 2011 This paper proposes the idea of etching PZT to improve the temperature variation rate of a thicker PZT sheet in order to enhance the energy conversion efficiency when used as pyroelectric cells.
Chi-Yuan Lee +3 more
doaj +1 more source
Influence of Polytypism on the Electronic Structure of CdSe/CdS and CdSe/CdSe Core/Shell Nanocrystals [PDF]
, 2017 We address theoretically differences and similarities on the electronic structure of CdSe/CdS dot-in-dot nanocrystals (NCs) with wurtzite/wurtzite (WZ/WZ), zinc-blende/zinc-blende (ZB/ZB) and polytype ZB/WZ crystalline phases, as they are currently being
Carlos Segarra +4 more
core +1 more source
Multi-Frequency Band Pyroelectric Sensors
Sensors, 2014 A methodology is proposed for designing a multi-frequency band pyroelectric sensor which can detect subjects with various frequencies or velocities. A structure with dual pyroelectric layers, consisting of a thinner sputtered ZnO layer and a thicker ...
Chun-Ching Hsiao, Sheng-Yi Liu
doaj +1 more source
Crystals, 2021 A temperature-modulated pyroelectricity measurement system for a small single crystal is developed and applied to standard sample measurements performed on a thin single crystal of lithium niobate. The modulation measurement is based on the AC technique,
Kaoru Yamamoto +3 more
doaj +1 more source
Ferroelectricity in the xAg2Nb4O11–(1−x)Na2Nb4O11 solid solution [PDF]
, 2011 Compositions in the (AgxNa1-x)2Nb4O11 solid solution have been prepared by a conventional solid state method. Composites containing Ag2Nb4O11 have been shown to be ferroelectric and the Curie temperature shown to decrease from 149 °C at x = 1 to 62 °C ...
Thomas, Pam A., Woodward, David I.
core +1 more source
Ferroelectricity in biological building blocks: Slipping on a banana peel?
Journal of Advanced Dielectrics, 2023 Ferroelectricity in biological system has been anticipated both theoretically and experimentally over the past few decades. Claims of ferroelectricity in biological systems have given rise to confusion and methodological controversy.
Syed A. M. Tofail
doaj +1 more source
Pyroelectricity and field-induced spin-flop in (4-(Aminomethyl)pyridinium)2 MnCl4 · 2H2O [PDF]
Royal Society Open Science, 2020 Large single crystals of (4-(Aminomethyl)pyridinium)2 MnCl4 · 2H2O (1) were grown by slow evaporation of solution. The crystal structure was solved to be Pī, which belongs to the central symmetric space group. But small pyroelectric current was detected,
Kaige Gao +4 more
doaj +1 more source
Pyroelectric effect enhancement through product property under open circuit condition [PDF]
, 2009 An analytical model for the pyroelectric (PY) effect under open circuit condition and 2-2 connectivity laminates of various pairs of PY and nonpyroelectric (NP)/elastic materials has been developed.
Chang, Harrison Hoon Seok +1 more
core +1 more source