Listar por tema "Hysteresis"
Mostrando ítems 1-8 de 8
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Defect migration in methylammonium lead iodide and its role in perovskite solar cell operation
Royal Society of Chemistry (2015)In spite of the unprecedented advance of organohalide lead perovskites in the photovoltaics scenario, many of the characteristics of this class of materials, including their slow photoconductivity response, solar cell ... -
Hysteresis Control in Hybrid Perovskite-based Devices for Photovoltaic and Neuromorphic Computing Applications
Universitat Jaume I (2023-07-07)Perovskite solar cells have been rapidly advancing in record efficiencies at an unprecedented rate already approaching the theoretical maximum efficiency in just over a decade of development. Most notably, perovskites ... -
Phase transition hysteresis and anomalous Curie-Weis behavior of ferroelectric tetragonaltungsten bronzes Ba2RETi2Nb3O15:RE=Nd, Sm
American Institute of Physics (2008)The ferroelectric tetragonal tungsten bronze TTB phases, Ba2RETi2Nb3O15 :RE=Nd,Sm, were prepared by low temperature solvothermal synthesis. The permittivity versus temperature data of sintered ceramics show two unusual ... -
Study of hysteretic thermoelectric behavior in photovoltaic materials using the finite element method, extended thermodynamics and inverse problems
Elsevier (2013)The main objective of the present work is to develop and prove a theoretical explanation based on the Extended Non-Equilibrium Thermodynamics (ENETs) for the hysteretical thermoelectric behavior observed in certain thin-film ... -
Temperature Effects on the Photovoltaic Performance of Planar Structure Perovskite Solar Cells
Chemical Society of Japan (2015-09-10)Temperature effects of CH3NH3PbI3 perovskite solar cells having simple planar architecture were investigated on the crystal structure and photovoltaic performance. The obvious changes in the CH3NH3PbI3 crystal structure ... -
The connection between the heat storage capability of PCM as a material property and their performance in real scale applications
Elsevier (2017-06)Using phase change materials (PCM) for Thermal Energy Storage, the most important material property is their heat storage capability, usually given as h(T). Ideally, h(T) changes suddenly at a single temperature. However, ... -
Tunable hysteresis effect for perovskite solar cells
Royal Society of Chemistry (2017-09-14)Perovskite solar cells (PSCs) usually suffer from a hysteresis effect in current–voltage measurements, which leads to an inaccurate estimation of the device e fficiency. Although ion migration, charge trapping/ detrapping, ... -
Unemployment Hysteresis in Transition Countries: Evidence using Stationarity Panel Tests with Breaks
Wiley-Blackwell (2008)This paper tests hysteresis e¤ects in unemployment using panel data for Tran- sition Countries covering the period 1992:1-2003:11. The tests exploit the cross- section variations of the series, and additionally, allow ...