Xu Baoyuan, Gao Zhenhua, Wei Yanhui, Liu Yang, Sun Xun, Zhang Weiguang, Wang Xue, Wang Zifei, Meng Xiangeng
School of Materials Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), 3501 Daxue Road, Changqing District, Jinan 250353, Shandong Province, China.
College of Chemistry and Materials Science, Shandong Agricultural University, Taian, 271018, Shandong, China.
Nanoscale. 2020 Feb 27;12(8):4833-4838. doi: 10.1039/c9nr09644b.
We propose a strategy to construct dynamically tunable random lasers by continuously adjusting the excited state of gain molecules spatially confined in the nanoporous channels of metal-organic framework particles. Wavelength-tunable random lasers are achieved by thermally manipulating the intramolecular charge transfer process of gain molecules. The wavelength-tunable response to thermal stimuli exhibits excellent reversible behavior. We envisage that such random lasers based on metal-organic frameworks will raise new fundamental issues regarding light-matter interactions in complex photonic media and open up a new avenue toward highly efficient light-emitting devices.
我们提出了一种策略，通过连续调节空间限制在金属有机框架颗粒纳米多孔通道中的增益分子的激发态，来构建动态可调谐随机激光器。通过热调控增益分子的分子内电荷转移过程，实现了波长可调谐随机激光器。对热刺激的波长可调谐响应表现出优异的可逆行为。我们设想，这种基于金属有机框架的随机激光器将引发关于复杂光子介质中光与物质相互作用的新的基本问题，并为高效发光器件开辟一条新途径。
