Boosting fluorescence efficiency via filling technique prepared photonic crystal composites.

Yutao Qin, Xiang Zhao, Yiran Wang, Jiaxiang He, Zheng Zhu, Tianzhuo Zhao, Guoyan Dong

Abstract read

In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Yutao QinCenter of Materials Science and Optoelectronics Engineering, School of Opto-Electronics, University of Chinese Academy of Sciences, Beijing, 100049, China.

Xiang ZhaoCenter of Materials Science and Optoelectronics Engineering, School of Opto-Electronics, University of Chinese Academy of Sciences, Beijing, 100049, China.

Yiran WangCenter of Materials Science and Optoelectronics Engineering, School of Opto-Electronics, University of Chinese Academy of Sciences, Beijing, 100049, China.

Jiaxiang HeCenter of Materials Science and Optoelectronics Engineering, School of Opto-Electronics, University of Chinese Academy of Sciences, Beijing, 100049, China.

Zheng ZhuCenter of Materials Science and Optoelectronics Engineering, School of Opto-Electronics, University of Chinese Academy of Sciences, Beijing, 100049, China.

Tianzhuo ZhaoCenter of Materials Science and Optoelectronics Engineering, School of Opto-Electronics, University of Chinese Academy of Sciences, Beijing, 100049, China. zhaotianzhuo@ucas.ac.cn.

Guoyan DongCenter of Materials Science and Optoelectronics Engineering, School of Opto-Electronics, University of Chinese Academy of Sciences, Beijing, 100049, China. gydong@ucas.ac.cn.

Funding

National Key Research and Development Program of China 2022YFB3806003National Natural Science Foundation of China 12374398Natural Science Foundation of Beijing Municipality 4222081

6 · The paper itself

Abstract

Au-doped photonic crystals offer considerable potential for boosting optical signals, however, precisely controlling the distance between luminescent particles and Au nanoparticles (NPs) faces severe challenges. We proposed a "filling" technique to prepare porous Au-doped inverse-opal PC (IOPC) with encapsulated Au NPs uniformly dispersing in insulating silica. The effective separation between Au NPs and infiltrated luminescent quantum dots successfully addresses the issue of fluorescence quenching, enhancing the photoluminescence intensity by 106-fold. Additionally, the double-layer IOPC-OPC composite, integrating an Au-doped IOPC and an opal photonic crystal (OPC) completely reflecting excitation or emission light, significantly improves the fluorescence intensity to 242-fold, far superior to the published counterparts. This synergy of localized surface plasmon resonance, high density of state, and photonic band gap in the IOPC-OPC composite offers an effective and low-loss approach for the precise modulation and amplification of photoluminescence. This strategy is crucial for the development of next-generation optical devices with improved sensitivity and stability.

Indexed as

Fluorescence enhancementHigh density of stateLocalized surface plasmon resonancePhotonic band gapPorous photonic crystal

Identifiers

PMID40481120

DOI10.1038/s41598-025-04296-7

PMCPMC12144228

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.