Unprecedented Dielectric Bistable Switching in a Binuclear HgII Based Hybrid Compound. Issue 6 (30th January 2019)

• Record Type: Journal Article
• Authors: Xu, Li; Gao, Ji‐Xing; Chen, Xiao‐Gang; Hua, Xiu‐Ni; Wu, De‐Hong; Liao, Wei‐Qiang
• Is Part Of: European journal of inorganic chemistry. Issue 6(2019)
• Page Start: 800
• Page End: 807
• Publication Date: 2019-01-30
• Subjects: Phase transitions -- Mercury -- Polycrystalline form -- Dielectric switch -- High contrast; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201801293
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract : Switchable materials have developed greatly, because of their potential applications in many fields, such as data storage and dielectric devices, while the "ON"/"OFF" of the dielectric effect in polycrystalline materials to achieve high contrast is still a great challenge, which gradually become one of the research hotspots in the materials science and electronics. Herein, we report a prominent dielectric switch of (TMCM)2 Hg2 Cl6 (1, TMCM = trimethylchloromethyl ammonium), with a high phase transition temperature (Tc) of 405.8 K and an extremely high contrast of ca. 14. Such a breakthrough is elucidated from the highly disordered TMCM and the severely deformed of Hg2 Cl6 in high temperature phase. By understanding the properties of superior dielectric, a feasible switch mechanism can be constructed to inject new vitality into the field of molecular medium switch. Abstract : An organic‐inorganic polycrystalline dielectric switch, [(trimethylchloromethyl ammonium)2 Hg2 Cl6 ], shows an extremely high contrast of ca. 14.