Photonic barcodes have attracted extensive attention due to their promising applications in multiplexed high throughput bioassays, item tracking, information security, etc. Organic luminescent materials, capable of assembling into various micro/nanostructures as a result of their outstanding processability, afford a fundamental model for designing novel micro/nanoscale photonic barcodes. In this highlight, we review recent advances in micro/nanoscale photonic barcodes based on organic materials. This highlight starts by introducing the significance of tiny photonic barcodes and discussing why organics have become dominant. Then we present the research progress on organic photonic barcodes in terms of a series of strategies including graphical encoding, spectroscopic encoding and a combination of them both. In the following part, we focus on the construction of covert photonic barcodes based on near-infrared luminescence and responsive excited state processes, which have shown great potential in advanced anti-counterfeiting. Finally, we present our views on the current challenges and the future development of organic micro/nanoscale photonic barcodes. We believe that a comprehensive understanding on this topic would significantly contribute to the advancement of organic photonic barcodes for a broad range of applications.

中文翻译：

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用于光子条形码的有机微/纳米级材料

由于光子条形码在多重高通量生物测定，项目跟踪，信息安全等方面的应用前景广阔，因此引起了广泛的关注。。由于其出色的可加工性而能够组装成各种微/纳米结构的有机发光材料为设计新型微/纳米级光子条形码提供了基础模型。在这一亮点中，我们回顾了基于有机材料的微/纳米级光子条形码的最新进展。首先，重点介绍了微小的光子条形码的重要性，并讨论了为什么有机物占主导地位。然后，我们根据一系列策略，包括图形编码，光谱编码以及它们的组合，介绍了有机光子条形码的研究进展。在以下部分中，我们重点介绍基于近红外发光和响应激发态过程的隐蔽光子条形码的构建，具有先进的防伪潜力。最后，我们对有机微/纳米级光子条形码的当前挑战和未来发展提出意见。我们相信，对该主题的全面理解将极大地促进有机光子条形码在各种应用中的发展。