Galvanic Displacement of Gallium Arsenide Surface: A Simple and Low-Cost Method to Deposit Metal Nanoparticles and Films
Joint Authors
Pham, Ngoc Duy
Park, Seok Ju
Lee, Jun Pil
Oh, Ilwhan
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-13
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Herein, we report galvanic displacement of metal nanoparticles and films onto single-crystalline GaAs (100) substrates, a simple and cost-effective method to fabricate highly controlled metal/semiconductor interface.
A time-resolved surface analysis of Au/GaAs system was conducted and microscopic mechanism of galvanic displacement was elucidated in detail.
Quantitative temporal XPS measurements of the Au/GaAs interface showed that, initially, fast Au growth was slowed down as the deposition process proceeded.
This was attributed to growing oxide layer blocking hole conduction and causing quenching of the deposition process.
Addition of various inorganic acids, which function as oxide etchants, was found to enhance deposition rates by effectively removing surface oxide, with HF the most effective.
Various precious metals, such as Pt and Ag, could be deposited onto GaAs through galvanic displacement, which demonstrates the versatility of the method.
American Psychological Association (APA)
Pham, Ngoc Duy& Park, Seok Ju& Lee, Jun Pil& Oh, Ilwhan. 2014. Galvanic Displacement of Gallium Arsenide Surface: A Simple and Low-Cost Method to Deposit Metal Nanoparticles and Films. Journal of Chemistry،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1040076
Modern Language Association (MLA)
Pham, Ngoc Duy…[et al.]. Galvanic Displacement of Gallium Arsenide Surface: A Simple and Low-Cost Method to Deposit Metal Nanoparticles and Films. Journal of Chemistry No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1040076
American Medical Association (AMA)
Pham, Ngoc Duy& Park, Seok Ju& Lee, Jun Pil& Oh, Ilwhan. Galvanic Displacement of Gallium Arsenide Surface: A Simple and Low-Cost Method to Deposit Metal Nanoparticles and Films. Journal of Chemistry. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1040076
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1040076