CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 10753 > Article
Presentation
17 September 2018 Mechanism of electric power generation from ionic droplet motion on polymer supported graphene (Conference Presentation)
Chuanshan Tian
Author Affiliations +
Proceedings Volume 10753, Ultrafast Nonlinear Imaging and Spectroscopy VI; 107530P (2018) https://doi.org/10.1117/12.2322521
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States
Abstract
Graphene-based electric power generation that converts mechanical energy of flow of ionic droplets over the device surface into electricity has emerged as a promising candidate for blue-energy network. Yet the lack of a microscopic understanding of the underlying mechanism has prevented ability to optimize and control the performance of such devices. This requires information on interfacial structure and charging behavior at the molecular level. Here, we use sum-frequency vibrational spectroscopy (SFVS) to probe the interface of device composed of aqueous solution, graphene and supporting polymer substrate. We discover that the surface dipole layer of the polymer is responsible for ion attraction toward and adsorption at the graphene surface that leads to electricity generation in graphene. Graphene itself does not attract ions and only acts as a conducting sheet for the induced carrier transport. Replacing the polymer by an organic ferroelectric substrate could enhance the efficiency and allow switching of the electricity generation. Our microscopic understanding of the electricity generation process paves the way for the rational design of scalable and more efficient droplet-motion-based energy transducer devices.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Chuanshan Tian "Mechanism of electric power generation from ionic droplet motion on polymer supported graphene (Conference Presentation)", Proc. SPIE 10753, Ultrafast Nonlinear Imaging and Spectroscopy VI, 107530P (17 September 2018); https://doi.org/10.1117/12.2322521
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Graphene
Polymers
Ions
Adsorption
Control systems
Ferroelectric polymers
Interfaces
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top