Self-Powered Frequency-Selective Acoustic Sensor Based on Bound States in the Continuum.

Chao Song, Sibo Huang, Hongyu Ma, Shuhuan Xie, Din Ping Tsai, Jie Zhu, Yong Li

Abstract read

In one paragraph

Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it

0cells of the map it votes in

1citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

Self-Powered Frequency-Selective Acoustic Sensor Based on Bound States in the Continuum.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
Article

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Chao SongInstitute of Acoustics, Tongji University, Shanghai, 200092, China.

Sibo HuangDepartment of Electrical Engineering, City University of Hong Kong, Hong Kong, 999077, China.ORCID https://orcid.org/0000-0003-2402-4042

Hongyu MaInstitute of Acoustics, Tongji University, Shanghai, 200092, China.

Shuhuan XieInstitute of Acoustics, Tongji University, Shanghai, 200092, China.

Din Ping TsaiDepartment of Electrical Engineering, City University of Hong Kong, Hong Kong, 999077, China.ORCID https://orcid.org/0000-0002-0883-9906

Jie ZhuInstitute of Acoustics, Tongji University, Shanghai, 200092, China.

Yong LiInstitute of Acoustics, Tongji University, Shanghai, 200092, China.ORCID https://orcid.org/0000-0001-8049-9128

Funding

Aero Engine Corporation of China HFZL2020CXY007City University of Hong Kong 7005867City University of Hong Kong 9380131Local Science and Technology Development Fund Project YDZX20233100004002National Natural Science Foundation of China 62375232National Natural Science Foundation of China 92263208Shanghai Pilot Program for Basic ResearchShanghai Science and Technology Committee 21JC1405600Shanghai Science and Technology Committee 22JC1404100the University Grants Committee/Research Grants Council of the Hong Kong Special Administrative Region, China AoE/P-502/20the University Grants Committee/Research Grants Council of the Hong Kong Special Administrative Region, China CityU11300224the University Grants Committee/Research Grants Council of the Hong Kong Special Administrative Region, China CityU11305223the University Grants Committee/Research Grants Council of the Hong Kong Special Administrative Region, China CRF Project: C5031-22Gthe University Grants Committee/Research Grants Council of the Hong Kong Special Administrative Region, China GRF Project: CityU15303521Xiaomi Young Talents Program

6 · The paper itself

Abstract

Sound is a clean, renewable, and abundant energy source present ubiquitously in nature. However, it is often underutilized due to its low energy density in most environments. This study introduces a two-state system that supports a Friedrich-Wintgen bound state in the continuum (BIC), achieving an unprecedented enhancement in sound energy density-up to 1849 times the incident sound intensity. By integrating this BIC-supporting system with energy conversion mechanisms, such as piezoelectric films, high-performance acoustic energy harvesting and sensing is realized. As a proof-of-concept, a self-powered acoustic sensor system is developed. This sensor leverages the high-quality-factor nature of a BIC, providing exceptional passive frequency selectivity and the ability to activate a light-emitting diode (LED) at the target frequency of 501 Hz with an offset of only 4 Hz. This work represents a groundbreaking advancement in sound-energy enhancement, paving the way for BIC-induced acoustic harvesters and sensors, with promising applications in wireless sensor networks and the Internet of Things.

Indexed as

acoustic energy harvestingacoustic sensorbound states in the continuumperfect absorption

Identifiers

PMID39982045

DOI10.1002/advs.202410379

PMCPMC12005764

What OpenQuestion holds

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LicenceCC BY

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Registered trials

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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.