He Lei, Liu Yuting, Shi Pingping, Cai Hongling, Fu Dawei, Ye Qiong
Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People's Republic of China.
Collaborative Innovation Center of Advanced Microstructures, Laboratory of Solid State Microstructures & School of Physics, Nanjing University, Nanjing 210093, People's Republic of China.
ACS Appl Mater Interfaces. 2020 Dec 2;12(48):53799-53806. doi: 10.1021/acsami.0c16180. Epub 2020 Nov 17.
Organic-inorganic hybrid perovskites are currently an active research topic in the field of energy and next-generation electronics. Their selectable organic and inorganic components provide infinite possibilities for designing functional materials with multiple applications. Herein, we present a new one-dimensional BaNiO-like organic-inorganic hybrid perovskite (thiazolidinium)CdBr (), which displays a phase transition at 263 K and a switchable second harmonic generation (SHG) response. Intriguingly, shows a pyroelectric coefficient of ∼0.6 μC·cm·K and a piezoelectric output voltage of ∼2.0 V for our fabricated piezoelectric generation device, indicating its great potential for pyroelectric sensors, self-powered low-voltage electronic devices, and energy harvesters. Moreover, the presence of a specific thioether donor enables to appropriately adsorb Pd(II) ions, which can be monitored by the corresponding change in phase transition behavior, SHG signal, and pyroelectric response. This work provides a new insight to develop new multifunctional materials, demonstrating the feasibility of utilizing organic-inorganic hybrid perovskites to realize future self-powered low-voltage devices and energy harvesters.
有机-无机杂化钙钛矿目前是能源和下一代电子领域的一个活跃研究课题。它们可选择的有机和无机组分为设计具有多种应用的功能材料提供了无限可能。在此,我们展示了一种新型的一维类BaNiO有机-无机杂化钙钛矿(噻唑烷鎓)CdBr( ),其在263 K时表现出相变以及可切换的二次谐波产生(SHG)响应。有趣的是,对于我们制备的压电发电装置, 显示出约0.6 μC·cm·K的热释电系数和约2.0 V的压电输出电压,表明其在热释电传感器、自供电低压电子设备和能量收集器方面具有巨大潜力。此外,特定硫醚供体的存在使 能够适当地吸附Pd(II)离子,这可以通过相变行为、SHG信号和热释电响应的相应变化来监测。这项工作为开发新型多功能材料提供了新的见解,证明了利用有机-无机杂化钙钛矿实现未来自供电低压设备和能量收集器的可行性。