High-Temperature Ferroelectricity and Photoluminescence in a Hybrid Organic鈥揑norganic Compound: (3-Pyrrolinium)MnCl3

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• 作者：Heng-Yun Ye ; QiongHua Zhou ; XiangHong Niu ; Wei-Qiang Liao ; Da-Wei Fu ; Yi Zhang ; Yu-Meng You ; Jinlan Wang ; Zhong-Ning Chen ; Ren-Gen Xiong
• 刊名：Journal of the American Chemical Society
• 出版年：2015
• 出版时间：October 14, 2015
• 年：2015
• 卷：137
• 期：40
• 页码：13148-13154
• 全文大小：540K
• ISSN：1520-5126

文摘

Coupling of ferroelectricity and optical properties has become an interesting aspect of material research. The switchable spontaneous polarization in ferroelectrics provides an alternative way to manipulate the light鈥搈atter interaction. The recent observation of strong photoluminescence emission in ferroelectric hybrid organic鈥搃norganic compounds, (pyrrolidinium)MnX₃ (X = Cl or Br), is an attractive approach to high efficiency luminescence with the advantages of ferroelectricity. However, (pyrrolidinium)MnX₃ only displays ferroelectricity near or below room temperature, which limits its future applications in optoelectronics and multifunctional devices. Here, we rationally designed and synthesized high-temperature luminescent ferroelectric materials. The new hybrid compound (3-pyrrolinium)MnCl₃ has a very high Curie temperature, T_c = 376 K, large spontaneous electronic polarization of 6.2 渭C/cm², and high fatigue resistance, as well as high emission efficiency of 28%. This finding is a further step to the practical use of ferroelectric luminescence based on organic鈥搃norganic compounds.