{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T14:54:17Z","timestamp":1790952857832,"version":"4.1.0"},"reference-count":63,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T00:00:00Z","timestamp":1790899200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T00:00:00Z","timestamp":1790899200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100021187","name":"Beijing National Laboratory for Molecular Sciences","doi-asserted-by":"publisher","award":["BNLMS\u2010CXTD\u2010202001"],"award-info":[{"award-number":["BNLMS\u2010CXTD\u2010202001"]}],"id":[{"id":"10.13039\/501100021187","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Materials"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Electrostatic loudspeakers (ESLs) demand lightweight, robust diaphragms with stable high\u2010density charge storage, yet conventional electrets suffer from rapid charge dissipation, shallow trap levels, and severe environmental sensitivity. This work reports a microstructural regulation strategy based on the strong interaction between liquid crystal polymer (LCP) and multilayer graphene (MLG), combined with fluorinated liquid crystals (F\u2010LC). The strong \u03c0\u2013\u03c0 stacking interaction between the rigid mesogenic units of LCP and MLG modulates the band structure of MLG and induces Maxwell\u2013Wagner\u2013Sillars (MWS) interfacial polarization. It constructs deep\u2010level charge traps and increases the density of charge traps. The strong electrostatic attraction of F\u2010LC enhances charge\u2010trapping capability and improves the hydrophobicity of the composite, delivering superior environmental stability. Thermally stimulated discharge current (TSDC) measurements confirm a trap energy level of 1.8\u00a0eV, with an average absolute surface potential of 8.7\u00a0kV. The resulting electrostatic loudspeaker achieves a maximum sound pressure level (SPL) of 91.4\u00a0dB at 775\u00a0Hz and extremely low total harmonic distortion (THD &lt; 0.53%) over a wide frequency range (3\u201320\u00a0kHz). This work provides a promising pathway for high\u2010fidelity, bias\u2010free flexible acoustic transducers, overcoming the long\u2010standing bottleneck for ESLs in consumer and automotive applications.<\/jats:p>","DOI":"10.1002\/adma.75250","type":"journal-article","created":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T14:02:33Z","timestamp":1790949753000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Harnessing Multi\u2010Effect Coupling for Deep\u2010Level Trap Engineering in Graphene\/Liquid Crystal Polymer Composites Toward High\u2010Fidelity Electrostatic Loudspeakers"],"prefix":"10.1002","author":[{"given":"Qianhui","family":"Sun","sequence":"first","affiliation":[{"name":"Key Laboratory of Optoelectronics Technology, Ministry of Education Beijing University of Technology  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-9908-309X","authenticated-orcid":false,"given":"Huihui","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronics Technology, Ministry of Education Beijing University of Technology  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yongjie","family":"Gao","sequence":"additional","affiliation":[{"name":"Sinopec Research Institute of Petroleum Processing CO.  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peng","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronics Technology, Ministry of Education Beijing University of Technology  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haoran","family":"Du","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronics Technology, Ministry of Education Beijing University of Technology  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingqiong","family":"Xie","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronics Technology, Ministry of Education Beijing University of Technology  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yi","family":"Luo","sequence":"additional","affiliation":[{"name":"Key Laboratory of Optoelectronics Technology, Ministry of Education Beijing University of Technology  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6316-7914","authenticated-orcid":false,"given":"Haijiao","family":"Xie","sequence":"additional","affiliation":[{"name":"Hangzhou Yanqu Information Technology Co., Ltd.  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