QuiMolMat Group, Department of Chemistry, Faculty of Science and Advanced Scientific Research Center (CICA), Zapateira, University of A Coruna, 15071 A Coruna, Spain.
Department of Naval and Industrial Engineering, Esteiro, University of A Coruna, 15471 Ferrol, Spain.
Nat Commun. 2017 Jun 1;8:15715. doi: 10.1038/ncomms15715.
The fast growing family of organic-inorganic hybrid compounds has recently been attracting increased attention owing to the remarkable functional properties (magnetic, multiferroic, optoelectronic, photovoltaic) displayed by some of its members. Here we show that these compounds can also have great potential in the until now unexplored field of solid-state cooling by presenting giant barocaloric effects near room temperature already under easily accessible pressures in the hybrid perovskite [TPrA][Mn(dca)] (TPrA: tetrapropylammonium, dca: dicyanamide). Moreover, we propose that this will not be an isolated example for such an extraordinary behaviour as many other organic-inorganic hybrids (metal-organic frameworks and coordination polymers) exhibit the basic ingredients to display large caloric effects which can be very sensitive to pressure and other external stimuli. These findings open up new horizons and great opportunities for both organic-inorganic hybrids and for solid-state cooling technologies.
由于某些有机-无机杂化化合物具有显著的功能特性（磁性、多铁性、光电、光伏），这种化合物家族近年来引起了越来越多的关注。在这里，我们通过展示在混合钙钛矿 [TPrA][Mn(dca)]（TPrA：四丙基铵，dca：二氰胺）中，在容易达到的压力下，在室温附近即可实现巨大的压热效应，表明这些化合物在迄今为止尚未探索的固态冷却领域也具有巨大的潜力。此外，我们提出，这种非凡的行为不会是一个孤立的例子，因为许多其他有机-无机杂化材料（金属有机骨架和配位聚合物）具有表现出大的热效应的基本成分，这些热效应对压力和其他外部刺激非常敏感。这些发现为有机-无机杂化材料和固态冷却技术开辟了新的视野和巨大的机遇。
