{"title":"双金属氧化物crbio4集成能量收集装置:向自供电接近传感器迈进了一步","authors":"Rumana Farheen S. M. , Sebghatullah Amini , Pruthvi M. P. , Sangamesha M. A. , Manjunatha H. C. , Manjunatha S. , Krishnaveni S.","doi":"10.1016/j.surfin.2025.107040","DOIUrl":null,"url":null,"abstract":"<div><div>Triboelectric nanogenerators (TENGs) are innovative self-powered devices that offer a solution to the increasing need for flexible, cost-effective, and sustainable energy sources. In the present study, polymer‑composite based TENGs are fabricated by incorporating bimetallic chromium–bismuth oxide (CBO), synthesized via green route and embedded into a polyvinyl alcohol (PVA) matrix as tribopositive material. The PVA-CBO films are prepared via simple solution casting and thoroughly characterized by SEM, EDS, dielectric measurements, and FTIR to confirm uniform filler dispersion, enhanced dielectric constant, and strong polymer-oxide interactions. The fabricated device exhibited peak to peak voltage of 304.56 V and a current of 2.79 µA at a frequency of 7 Hz and 10 N. The practical application of this device is showcased by charging an electrolytic capacitor and effectively lighting a series of interconnected green LEDs. Moreover, by monitoring voltage peaks as a human approach within 50 cm, the CBO-TENG demonstrates self‑powered proximity‑sensing capability, highlighting its potential for non‑contact human‑machine interfaces and security applications.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"72 ","pages":"Article 107040"},"PeriodicalIF":6.3000,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Bimetallic oxide CrBiO4-integrated energy harvesting device: A step toward self-powered proximity sensors\",\"authors\":\"Rumana Farheen S. M. , Sebghatullah Amini , Pruthvi M. P. , Sangamesha M. A. , Manjunatha H. C. , Manjunatha S. , Krishnaveni S.\",\"doi\":\"10.1016/j.surfin.2025.107040\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Triboelectric nanogenerators (TENGs) are innovative self-powered devices that offer a solution to the increasing need for flexible, cost-effective, and sustainable energy sources. In the present study, polymer‑composite based TENGs are fabricated by incorporating bimetallic chromium–bismuth oxide (CBO), synthesized via green route and embedded into a polyvinyl alcohol (PVA) matrix as tribopositive material. The PVA-CBO films are prepared via simple solution casting and thoroughly characterized by SEM, EDS, dielectric measurements, and FTIR to confirm uniform filler dispersion, enhanced dielectric constant, and strong polymer-oxide interactions. The fabricated device exhibited peak to peak voltage of 304.56 V and a current of 2.79 µA at a frequency of 7 Hz and 10 N. The practical application of this device is showcased by charging an electrolytic capacitor and effectively lighting a series of interconnected green LEDs. Moreover, by monitoring voltage peaks as a human approach within 50 cm, the CBO-TENG demonstrates self‑powered proximity‑sensing capability, highlighting its potential for non‑contact human‑machine interfaces and security applications.</div></div>\",\"PeriodicalId\":22081,\"journal\":{\"name\":\"Surfaces and Interfaces\",\"volume\":\"72 \",\"pages\":\"Article 107040\"},\"PeriodicalIF\":6.3000,\"publicationDate\":\"2025-06-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Surfaces and Interfaces\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2468023025012945\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surfaces and Interfaces","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2468023025012945","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Bimetallic oxide CrBiO4-integrated energy harvesting device: A step toward self-powered proximity sensors
Triboelectric nanogenerators (TENGs) are innovative self-powered devices that offer a solution to the increasing need for flexible, cost-effective, and sustainable energy sources. In the present study, polymer‑composite based TENGs are fabricated by incorporating bimetallic chromium–bismuth oxide (CBO), synthesized via green route and embedded into a polyvinyl alcohol (PVA) matrix as tribopositive material. The PVA-CBO films are prepared via simple solution casting and thoroughly characterized by SEM, EDS, dielectric measurements, and FTIR to confirm uniform filler dispersion, enhanced dielectric constant, and strong polymer-oxide interactions. The fabricated device exhibited peak to peak voltage of 304.56 V and a current of 2.79 µA at a frequency of 7 Hz and 10 N. The practical application of this device is showcased by charging an electrolytic capacitor and effectively lighting a series of interconnected green LEDs. Moreover, by monitoring voltage peaks as a human approach within 50 cm, the CBO-TENG demonstrates self‑powered proximity‑sensing capability, highlighting its potential for non‑contact human‑machine interfaces and security applications.
期刊介绍:
The aim of the journal is to provide a respectful outlet for ''sound science'' papers in all research areas on surfaces and interfaces. We define sound science papers as papers that describe new and well-executed research, but that do not necessarily provide brand new insights or are merely a description of research results.
Surfaces and Interfaces publishes research papers in all fields of surface science which may not always find the right home on first submission to our Elsevier sister journals (Applied Surface, Surface and Coatings Technology, Thin Solid Films)