Surface charging‐dependent deposition of silver on gold nanorods. Issue 3 (18th February 2021)

• Record Type: Journal Article
• Authors: Chang, Sheng‐Te; Dong, Wen‐Yi; Chen, Kai‐Cheng; He, Yan; Yen, Yi‐An; Kao, Chih‐Wei; Deng, Jin‐Pei
• Is Part Of: Journal of the Chinese Chemical Society. Volume 68:Issue 3(2021)
• Page Start: 512
• Page End: 516
• Publication Date: 2021-02-18
• Subjects: blue shift -- core‐shell nanoparticles -- electron charging -- gold nanorods -- silver nanoparticles; Chemistry -- Periodicals; Electronic journals; 540.5
• DOI: 10.1002/jccs.202000481
• Languages: English
• ISSNs: 0009-4536

Abstract

Abstract: The surface of gold nanorods is chemically charged by ascorbic acid; the charging effect results in not only the blue shift on their surface plasmon bands, but also the change of the deposition rate of silver on their surfaces. The rate was prominently accelerated at room temperature, but slightly slowed down at higher temperature. The shape of gold‐silver core‐shell nanoparticles could not be obviously affected. The Fermi level of gold nanorods begins to increase under the action of charging and alters the electrical double‐layer structure of gold nanorods, resulting in the different deposition rate of silver on gold. Abstract : The surface of gold nanorods is chemically charged by ascorbic acid; the charging effect can change the deposition rate of silver atoms on Au nanorods. The deposition rate highly depends on the amounts of the charging.