Issue 38, 2015
From the journal:

Nanoscale

Photoresponse of double-stacked graphene to Infrared radiation

Prarthana Gowda,a   Dipti R. Mohapatrab  and  Abha Misra*a  

* Corresponding authors

a Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore, Karnataka 560012, India
E-mail: abha.misra1@gmail.com

b Department of Physics, Indian Institute of Science, Bangalore, Karnataka 560012, India

Abstract

We report the photoresponse of stacked graphene layers towards infrared radiation. Graphene is stacked in two configurations, namely, crossed and parallel layers. Raman analysis demonstrated a strong interaction among the stacked graphene layers. Graphene in the crossed configuration exhibited the presence of both negative and positive conductivities; however, other configurations of graphene exhibited positive conductivity only. The presence of negative photoconductivity is proposed to be due to oxygen or oxygen-related functional group absorbents that are trapped in between two monolayers of graphene and act as scattering centers for free carriers. An interesting trend is reported in differential conductivity when stacked layers are compared with multilayers and parallel-stacked graphene layers.

Graphical abstract: Photoresponse of double-stacked graphene to Infrared radiation

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/C5NR03676C
Article type
Paper
Submitted
04 Jun 2015
Accepted
19 Aug 2015
First published
26 Aug 2015

Nanoscale, 2015,7, 15806-15813

Permissions

Request permissions

Photoresponse of double-stacked graphene to Infrared radiation

P. Gowda, D. R. Mohapatra and A. Misra, Nanoscale, 2015, 7, 15806 DOI: 10.1039/C5NR03676C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements