{"title":"基于 CdS 纳米线的缺陷工程与压电极化协同辅助光电化学传感技术","authors":"Yanhu Wang, Mengchun Yang, Shenguang Ge, Jinghua Yu","doi":"10.1002/adsr.202400019","DOIUrl":null,"url":null,"abstract":"<p>Developing progressive photoelectrochemical (PEC) techniques holds great potential for advancing analytical sensitivity in clinical. However, the low transport and separation of charge carrier efficiency and deficient active sites block efficient and durable PEC analytical performance features. And herein a piezo-assisted PEC sensing platform for glutathione (GSH) detection are successfully prepared based on S vacancies rich CdS (S<sub>v</sub>-CdS) nanowires. The collaboration of piezoelectric polarization and S vacancies engineering contributed to the boosted PEC performance by accelerating the spatial separation of photogenerated charges and providing abundant active sites. Moreover, the charge transfer efficiency further promoted with the introduction of GSH acted a hole scavenge that effectively suppresses the electron-hole recombination, giving rise to an amplified photocurrent. As a demonstration, the proposed method presents an outstanding analytical performance toward GSH. Consequently, this work provides an inspirable and convenient route for designing high-efficiency photoelectrode in PEC sensing in virtue of judicious structural, and defect engineering, and the exploring of an external-field-coupling-enhanced PEC platform.</p>","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202400019","citationCount":"0","resultStr":"{\"title\":\"Defect Engineering and Piezoelectrical Polarization Synergistically Assisted for Photoelectrochemical Sensing Based on CdS Nanowires\",\"authors\":\"Yanhu Wang, Mengchun Yang, Shenguang Ge, Jinghua Yu\",\"doi\":\"10.1002/adsr.202400019\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Developing progressive photoelectrochemical (PEC) techniques holds great potential for advancing analytical sensitivity in clinical. However, the low transport and separation of charge carrier efficiency and deficient active sites block efficient and durable PEC analytical performance features. And herein a piezo-assisted PEC sensing platform for glutathione (GSH) detection are successfully prepared based on S vacancies rich CdS (S<sub>v</sub>-CdS) nanowires. The collaboration of piezoelectric polarization and S vacancies engineering contributed to the boosted PEC performance by accelerating the spatial separation of photogenerated charges and providing abundant active sites. Moreover, the charge transfer efficiency further promoted with the introduction of GSH acted a hole scavenge that effectively suppresses the electron-hole recombination, giving rise to an amplified photocurrent. As a demonstration, the proposed method presents an outstanding analytical performance toward GSH. Consequently, this work provides an inspirable and convenient route for designing high-efficiency photoelectrode in PEC sensing in virtue of judicious structural, and defect engineering, and the exploring of an external-field-coupling-enhanced PEC platform.</p>\",\"PeriodicalId\":100037,\"journal\":{\"name\":\"Advanced Sensor Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-06-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202400019\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Sensor Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/adsr.202400019\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Sensor Research","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/adsr.202400019","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
开发渐进式光电化学(PEC)技术在提高临床分析灵敏度方面具有巨大潜力。然而,电荷载流子的低传输和分离效率以及活性位点的不足阻碍了 PEC 分析性能的高效性和持久性。本文基于富含 S 空位的 CdS(Sv-CdS)纳米线,成功制备了用于谷胱甘肽(GSH)检测的压电辅助 PEC 传感平台。压电极化和 S 空位工程的协同作用加速了光生电荷的空间分离,并提供了丰富的活性位点,从而提高了 PEC 性能。此外,由于引入了 GSH 作为空穴清除剂,有效抑制了电子-空穴重组,从而放大了光电流,进一步提高了电荷转移效率。由此可见,所提出的方法对 GSH 具有出色的分析性能。因此,这项工作为设计光致发光传感中的高效光电极提供了一条可取而便捷的途径,即通过合理的结构和缺陷工程设计,探索一种外场耦合增强型光致发光平台。
Defect Engineering and Piezoelectrical Polarization Synergistically Assisted for Photoelectrochemical Sensing Based on CdS Nanowires
Developing progressive photoelectrochemical (PEC) techniques holds great potential for advancing analytical sensitivity in clinical. However, the low transport and separation of charge carrier efficiency and deficient active sites block efficient and durable PEC analytical performance features. And herein a piezo-assisted PEC sensing platform for glutathione (GSH) detection are successfully prepared based on S vacancies rich CdS (Sv-CdS) nanowires. The collaboration of piezoelectric polarization and S vacancies engineering contributed to the boosted PEC performance by accelerating the spatial separation of photogenerated charges and providing abundant active sites. Moreover, the charge transfer efficiency further promoted with the introduction of GSH acted a hole scavenge that effectively suppresses the electron-hole recombination, giving rise to an amplified photocurrent. As a demonstration, the proposed method presents an outstanding analytical performance toward GSH. Consequently, this work provides an inspirable and convenient route for designing high-efficiency photoelectrode in PEC sensing in virtue of judicious structural, and defect engineering, and the exploring of an external-field-coupling-enhanced PEC platform.