Han Gao, ChunLian Zhan, Tianqi Zhao, Jianzhong Zheng
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引用次数: 0
Abstract
Optical materials with circularly polarized luminescence (CPL) features have attracted a growing interest due to their crucial role in biological sensing, display, spintronics, information storage, and so forth. However, CPL emissions in hybrid nanoparticle systems, in particular, chirality transfer induced CPL from chiral plasmonic nanoparticles, have rarely been explored due to a lack of effective bottom-up synthesis method. Herein, we creatively take advantage of the newly introduced chiral plasmonic nanoparticles-gold nanohelicoid (GNH) to excite the CPL of achiral Rhodamine 6G (R6G). The fabricated GNH@R6G-SiO2 shows obvious CPL signals with ∣glum∣ up to 0.014. Compared with the single GNH, the photoluminescence (PL) dissymmetry factor of the single GNH@R6G-SiO2 is similar, but with 25 folds higher PL intensities under different circular polarization. Our research not only offers an effective and feasible method to fabricate single-particle level CPL-active materials, but also provides guidelines on how to regulate the CPL of achiral luminophores from chiral plasmonic nanostructures, thereby enlarging the category and quantity of CPL-active materials that can be applied for photonic technologies and visualization biosensing, especially some intracellular chirality related detection.
期刊介绍:
Nano Research is a peer-reviewed, international and interdisciplinary research journal that focuses on all aspects of nanoscience and nanotechnology. It solicits submissions in various topical areas, from basic aspects of nanoscale materials to practical applications. The journal publishes articles on synthesis, characterization, and manipulation of nanomaterials; nanoscale physics, electrical transport, and quantum physics; scanning probe microscopy and spectroscopy; nanofluidics; nanosensors; nanoelectronics and molecular electronics; nano-optics, nano-optoelectronics, and nano-photonics; nanomagnetics; nanobiotechnology and nanomedicine; and nanoscale modeling and simulations. Nano Research offers readers a combination of authoritative and comprehensive Reviews, original cutting-edge research in Communication and Full Paper formats. The journal also prioritizes rapid review to ensure prompt publication.