| Giant barocaloric effects in formamidinium iodide | |
| Yu, Chenyang1,2; Huang, Jianqi1; Qi, Ji1,2; Liu, Peng1,2; Li, Da1,2; Yang, Teng1,2; Zhang, Zhidong1,2; Li, Bing1,2 | |
| Corresponding Author | Yang, Teng(yangteng@imr.ac.cn) ; Li, Bing(bingli@imr.ac.cn) |
| 2022 | |
| Source Publication | APL MATERIALS
 |
| ISSN | 2166-532X |
| Volume | 10Issue:1Pages:7 |
| Abstract | 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). |
| Funding Organization | 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 |
| DOI | 10.1063/5.0073381 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000746504400004 |
| Publisher | AIP Publishing |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/173549 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yang, Teng; Li, Bing |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation 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. |
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