A solid-state refrigerator based on the electrocaloric effect

2012 ◽  
Vol 100 (24) ◽  
pp. 242901 ◽  
Author(s):  
Yanbing Jia ◽  
Y. Sungtaek Ju
Keyword(s):  
Solid State ◽  
Electrocaloric Effect

Electrocaloric effect in relaxor ferroelectric polymer nanocomposites for solid-state cooling

2020 ◽  
Vol 8 (33) ◽  
pp. 16814-16830
Author(s):  
Hailong Hu ◽  
Fan Zhang ◽  
Shibin Luo ◽  
Jianling Yue ◽  
Chun-Hui Wang
Keyword(s):  
Solid State ◽  
Polymer Nanocomposites ◽  
Relaxor Ferroelectric ◽  
Cooling Efficiency ◽  
Electrocaloric Effect ◽  
Ferroelectric Polymer ◽  
Solid State Cooling

Ferroelectric polymer nanocomposites demonstrate improved adiabatic change of temperature and isothermal change of entropy and markedly enhanced heating–cooling efficiency.

Negative/Positive Electrocaloric Effect in Single-Layer Pb(ZrₓTi1–x )O₃ Thin Films for Solid-State Cooling Device

2020 ◽  
Vol 67 (4) ◽  
pp. 1769-1775
Author(s):  
Sankar Prasad Bag ◽  
Xu Hou ◽  
Jingtong Zhang ◽  
Shuanghao Wu ◽  
Jie Wang
Keyword(s):  
Thin Films ◽  
Solid State ◽  
Single Layer ◽  
Cooling Device ◽  
Electrocaloric Effect ◽  
Solid State Cooling

Prospects and challenges of the electrocaloric phenomenon in ferroelectric ceramics

2019 ◽  
Vol 7 (23) ◽  
pp. 6836-6859 ◽  
Author(s):  
Ajeet Kumar ◽  
Atul Thakre ◽  
Dae-Yong Jeong ◽  
Jungho Ryu
Keyword(s):  
Solid State ◽  
Electric Field ◽  
Ferroelectric Ceramics ◽  
Electrocaloric Effect ◽  
Highly Efficient

The electrocaloric effect (ECE), which refers to changes in the temperature of a material when an electric field is applied to or removed from the material, is one of the key phenomena of future highly efficient solid-state refrigeration devices.

scholarly journals Giant room temperature electrocaloric effect in a layered hybrid perovskite ferroelectric: [(CH3)2CHCH2NH3]2PbCl4

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xitao Liu ◽  
Zhenyue Wu ◽  
Tong Guan ◽  
Haidong Jiang ◽  
Peiqing Long ◽  
...  
Keyword(s):  
Solid State ◽  
Electric Fields ◽  
Room Temperature ◽  
Structural Diversity ◽  
Entropy Change ◽  
Electrocaloric Effect ◽  
Hybrid Perovskite ◽  
First Order Phase Transition ◽  
Large Heat ◽  
First Order Phase

AbstractElectrocaloric effect driven by electric fields displays great potential in realizing highly efficient solid-state refrigeration. Nevertheless, most known electrocaloric materials exhibit relatively poor cooling performance near room temperature, which hinders their further applications. The emerging family of hybrid perovskite ferroelectrics, which exhibits superior structural diversity, large heat exchange and broad property tenability, offers an ideal platform. Herein, we report an exceptionally large electrocaloric effect near room temperature in a designed hybrid perovskite ferroelectric [(CH3)2CHCH2NH3]2PbCl4, which exhibits a sharp first-order phase transition at 302 K, superior spontaneous polarization (>4.8 μC/cm2) and relatively small coercive field (<15 kV/cm). Strikingly, a large isothermal entropy change ΔS of 25.64 J/kg/K and adiabatic temperature change ΔT of 11.06 K under a small electric field ΔE of 29.7 kV/cm at room temperature are achieved, with giant electrocaloric strengths of isothermal ΔS/ΔE of 0.86 J·cm/kg/K/kV and adiabatic ΔT/ΔE of 370 mK·cm/kV, which is larger than those of traditional ferroelectrics. This work presents a general approach to the design of hybrid perovskite ferroelectrics, as well as provides a family of candidate materials with potentially prominent electrocaloric performance for room temperature solid-state refrigeration.

scholarly journals Исследования физических свойств и электрокалорического эффекта в нано- и микрокерамике BaTiO-=SUB=-3-=/SUB=-

2019 ◽  
Vol 61 (6) ◽  
pp. 1128
Author(s):  
А.В. Карташев ◽  
В.С. Бондарев ◽  
И.Н. Флёров ◽  
М.В. Горев ◽  
Е.И. Погорельцев ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Phase Transitions ◽  
Solid State ◽  
Size Effect ◽  
Specific Heat ◽  
Applied Electric Field ◽  
Electrocaloric Effect ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Plasma Techniques

AbstractThe specific heat, thermal expansion, permittivity, and electrocaloric effect in bulk of BaTiO_3 (BT) samples in the form of nano- (nBT-500 nm) and micro- (mBT-1200 nm) ceramics fabricated using spark plasma sintering and solid-state plasma techniques have been investigated. The size effect has been reflected, to a great extent, in the suppression of the specific heat and thermal expansion anomalies and in the changes in the temperatures and entropies of phase transitions and permittivity, and a decrease in the maximum intensive electrocaloric effect: $$\Delta T_{{{\text{AD}}}}^{{\max }}$$ = 29 mK ( E = 2.0 kV/cm) for nBT and $$\Delta T_{{{\text{AD}}}}^{{\max }}$$ = 70 mK ( E = 2.5 kV/cm) for mBT. The conductivity growth at temperatures above 360 K leads to the significant irreversible heating of the samples due to the Joule heat release in the applied electric field, which dominates over the electrocaloric effect.

scholarly journals Room-Temperature Electrocaloric Effect in Layered Ferroelectric CuInP2S6 for Solid-State Refrigeration

ACS Nano ◽  
2019 ◽  
Vol 13 (8) ◽  
pp. 8760-8765 ◽  
Author(s):  
Mengwei Si ◽  
Atanu K. Saha ◽  
Pai-Ying Liao ◽  
Shengjie Gao ◽  
Sabine M. Neumayer ◽  
...  
Keyword(s):  
Solid State ◽  
Room Temperature ◽  
Electrocaloric Effect

scholarly journals Tailoring the electrocaloric effect of Pb0.78Ba0.2La0.02ZrO3 relaxor thin film by GaN substrates

2019 ◽  
Vol 7 (45) ◽  
pp. 14109-14115 ◽  
Author(s):  
Biaolin Peng ◽  
Jintao Jiang ◽  
Silin Tang ◽  
Miaomiao Zhang ◽  
Laijun Liu ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solid State ◽  
Electrocaloric Effect ◽  
Cooling Devices ◽  
Potential Applications ◽  
Solid State Cooling

The electrocaloric (EC) effect in ferroelectric/antiferroelectric thin films has been widely investigated due to its potential applications in solid state cooling devices.

Sign in / Sign up

Export Citation Format

Share Document