Volume 114, Number 4, May 2016
|Number of page(s)||5|
|Published online||01 June 2016|
Gold nanoparticles promote amorphous carbon to be ammonia gas sensor
1 Department of Applied Physics, National Pingtung University - Pingtung 900, Taiwan
2 Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University Kaohsiung 804, Taiwan
3 Department of Applied Physics, National University of Kaohsiung - Kaohsiung 811, Taiwan
4 Department of Physics, National Sun Yat-Sen University - Kaohsiung 804, Taiwan
5 Department of Medicinal and Applied Chemistry, Kaohsiung Medical University - Kaohsiung 807, Taiwan
Received: 26 February 2016
Accepted: 16 May 2016
As gold-nanoparticles–embedded in amorphous carbon films the sp3 carbon orbits near the interface will be partially transferred to sp2. The Raman spectrum measurements as well as the molecular-dynamics simulations used the second reactive empirical bond order (REBO) potential simulating the interatomic force between carbon atoms both confirm the orbital transformations. The amorphous carbon films are initially inert to gases, while the films embedded with gold nanoparticles exhibit the increase of resistance in ammonia atmosphere. Namely, gold-nanoparticles–embedded amorphous carbon films become the candidate for ammonia gas sensor materials.
PACS: 07.07.Df – Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing / 81.05.U- – Carbon/carbon-based materials
© EPLA, 2016
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.