Giant barocaloric effects in formamidinium iodide

doi:10.1063/5.0073381

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	Giant barocaloric effects in formamidinium iodide
	Yu, Chenyang 1,2; Huang, Jianqi 2; Qi, Ji 1,2; Liu, Peng 1,2; Li, Da 1,2; Yang, Teng 1,2; Zhang, Zhidong 1,2; Li, Bing 1,2
刊名	APL MATERIALS
	2022
卷号	10 期号:1 页码:7
ISSN号	2166-532X
DOI	10.1063/5.0073381
通讯作者	Yang, Teng(yangteng@imr.ac.cn) ; Li, Bing(bingli@imr.ac.cn)
英文摘要	Barocaloric effect is the thermal response of materials to the external pressures, which provides a promising alternative to the current vapor-compression refrigeration. The effect has been widely observed in a variety of materials. Here, we report giant barocaloric effects in formamidinium iodide [CH(NH2)(2)I] that was known as the main precursor to synthesize the hybrid perovskite photovoltaic materials. The compound exhibits two successive phase transitions at 345 and 386 K, where isothermal entropy changes of about 50 J kg(-1) K-1 are found under applied pressures below 60 MPa. As for the low-temperature transition with the thermal hysteresis of about 6 K, we obtain a refrigerant capacity of 179 J kg(-1) under a pressure change of 100 MPa and an estimated adiabatic temperature change of about 24 K. Temperature- and pressure-dependent Raman scattering measurements indicate that the phase transitions and the barocaloric effects are attributed to influences on hydrogen bonds. (C) 2022 Author(s).
资助项目	National Natural Science Foundation of China[11804346] ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences[ZDBS-LY-JSC002] ; International Partner Program of Chinese Academy of Sciences[174321KYSB20200008]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	AIP Publishing
WOS记录号	WOS:000746504400004
资助机构	National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences ; International Partner Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173548]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yang, Teng; Li, Bing
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Yu, Chenyang,Huang, Jianqi,Qi, Ji,et al. Giant barocaloric effects in formamidinium iodide[J]. APL MATERIALS,2022,10(1):7.
APA	Yu, Chenyang.,Huang, Jianqi.,Qi, Ji.,Liu, Peng.,Li, Da.,...&Li, Bing.(2022).Giant barocaloric effects in formamidinium iodide.APL MATERIALS,10(1),7.
MLA	Yu, Chenyang,et al."Giant barocaloric effects in formamidinium iodide".APL MATERIALS 10.1(2022):7.