Cytosine Adsorption on Graphene Introducing Dopant: A First-Principles Study

Yong-Hui Zhang; Guo-Ping Wu; Kai-Ge Zhou; Ke-Feng Xie; Cai-Hong Liu; Hao-Li Zhang; Yong Peng; Yu-Qing Xiong

Chinese︱Feedback︱Save this page

• Elaborating Academic Views 　　　　 • Exchanging Innovative Ideas
• Protecting Intellectual Properties 　　• Fast Sharing Science Papers

Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China

Home > Papers

Cytosine Adsorption on Graphene Introducing Dopant: A First-Principles Study

Yong-Hui Zhang 1,Guo-Ping Wu 1,Kai-Ge Zhou 1,Ke-Feng Xie 1,Cai-Hong Liu 1,Hao-Li Zhang 2 * #,Yong Peng 3,Yu-Qing Xiong 4

2.State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University

3.Department of Engineering Materials, Sheffield University

4.National Key Lab of Surface Engineering, Lanzhou Institute of Physics

*Correspondence author

#Submitted by

Subject:

Funding: 国家自然科学基金,国家自然科学基金（No.20503011, 20621091）

Opened online: 5 January 2009

Accepted by: none

Citation: Yong-Hui Zhang,Guo-Ping Wu,Kai-Ge Zhou.Cytosine Adsorption on Graphene Introducing Dopant: A First-Principles Study[OL]. [ 5 January 2009] http://en.paper.edu.cn/en_releasepaper/content/27281

The adsorption of cytosine on graphene surface is studied using density functional theory with local density approximation. The cytosine is physisorbed onto graphene through π-π interaction, with a binding energy around -0.39 eV. Due to the weak interaction, the electronic properties of graphene show little change upon adsorption. The cytosine/graphene interaction can be strongly enhanced by introducing metal atoms. The binding energies increase to -0.60 and -2.31 eV in the presence of Li and Co atoms, respectively. The transport behavior of an electric sensor based on Co-doped graphene shows a sensitivity one magnitude higher than that of a similar device using pristine graphene. This work reveals that the sensitivity of graphene-based bio-sensors could be drastically improved by introducing appropriate metal atoms.

Keywords:Binding energy;Cytosine;Sensor

For this paper

● PDF (0B)
● Revision 0 　　
● Print this paper
● Recommend this paper to a friend
● Add to my favorite list

Saved Papers

Please enter a name for this paper to be shown in your personalized Saved Papers list

Tags

Add yours

Related Papers

Statistics

PDF Downloaded	1024
Bookmarked	0
Recommend	5
Comments	Array

Submit your papers

Alert Name:
Alerting to:
Authentication email will be sent to your email address in 24 hours
Frequency:
Email Message Format:	Plain text Graphical(HTML)

Complete the form below and we will recommend the selected titles to your friends on your behalf. * Indicates a required field.
Your name*:
Your email address*:
Recipient's name*:
Recipient's email address*:
(multiple recipient's names and email addresses should be separated with semicolons)
Your comments:	I thought you would find the page(s) useful.

Your name:
Your email address:
Recipient's name:
Recipient's email address:
(multiple recipient's names and email addresses should be separated with semicolons)
Your comments:	I thought you would find this page useful.

Disclaimer: This message was sent to your friend using the "Send it to a friend" facility on the Sciencepaper Online’ WWW site, http://www.paper.edu.cn/en. The Sciencepaper Online is not responsible for the content of this email, and anything said in this email does not necessarily reflect the Sciencepaper Online's views.

	Check out RSS, or use RSS reader to subscribe this item

Saved Papers