Online citations, reference lists, and bibliographies.

Please confirm you are human

(Sign Up for free to never see this)

← Back to Search

DOI: 10.1016/J.MATPR.2019.03.022

Charge Transport In A System Of Cholesterol Molecules Deposited On Graphene Oxide Using Current Sensing Atomic Force Microscope

Arup Sarkar, K. Suresh, H. N. Gayathri

Published 2019 · Materials Science

Save to my Library

Download PDF

Analyze on Scholarcy

Share

Abstract We have made a system consisting of cholesterol (Ch) molecules transferred onto graphene oxide (GO) by Langmuir-Blodgett technique on highly ordered pyrolytic graphite substrate. We have used current sensing atomic force microscope to study the current (I) - voltage (V) characteristics of Ch-GO system. To prepare Langmuir film of GO we have tuned its amphiphilicity by adjusting pH of the subphase. We find quantum tunneling to be the main mechanism of charge transport and it changes from direct to injection tunneling with increase in the applied bias voltage. Our finding can be useful for fabrication of molecular electronic devices.

This paper references

10.1021/MA101456Y

Alternate Multilayer Films of Poly(vinyl alcohol) and Exfoliated Graphene Oxide Fabricated via a Facial Layer-by-Layer Assembly

10.1140/EPJE/I2003-10088-4

AFM studies on Langmuir-Blodgett films of cholesterol

Raj Kumar Gupta (2004)

10.1021/LA025649R

Surface Characterization of Cholesterol Monohydrate Single Crystals by Chemical Force Microscopy

Richard S. Abendan (2002)

10.1021/ja806262m

Langmuir-Blodgett assembly of graphite oxide single layers.

10.1021/JP010658E

Self-Assembly of Crystalline Films of Interdigitated Long-Chain Cholesteryl Esters at the Air−Water Interface

Coralie Alonso (2001)

10.1021/JP049454Z

Monolayers and 3D films of cholesteryl derivatives at the air-water interface

P. Viswanath (2004)

10.1021/ja102777p

Graphene oxide sheets at interfaces.

10.1063/1.1702682

Generalized Formula for the Electric Tunnel Effect between Similar Electrodes Separated by a Thin Insulating Film

J. Simmons (1963)

10.1126/science.aaf6298

Covalently bonded single-molecule junctions with stable and reversible photoswitched conductivity

Chuancheng Jia (2016)

10.1021/la904014z

Graphene oxide as a matrix for enzyme immobilization.

J. Zhang (2010)

10.1103/PHYSREVB.68.035416

Mechanism of electron conduction in self-assembled alkanethiol monolayer devices

Wenyong Wang (2003)

10.1063/1.4923218

Electrical conductivity in Langmuir-Blodgett films of n-alkyl cyanobiphenyls using current sensing atomic force microscope

H. N. Gayathri (2015)

Structure of apolipoprotein B-100 in low density lipoproteins.

J. Segrest (2001)

10.1126/science.aag0827

Designing a robust single-molecule switch

C. D. Frisbie (2016)

10.1021/ja306767y

Nanoscale graphene oxide (nGO) as artificial receptors: implications for biomolecular interactions and sensing.

10.1103/PHYSREVLETT.97.026801

Transition from direct tunneling to field emission in metal-molecule-metal junctions.

Jeremy M. Beebe (2006)

This paper is referenced by

10.13005/MSRI/170109

Tunnelling Current Measurements Using Current Sensing Atomic Force Microscope

Arup Sarkar (2020)

10.1016/j.msec.2019.110607

Enhancing biocompatibility and corrosion resistance of biodegradable Mg-Zn-Y-Nd alloy by preparing PDA/HA coating for potential application of cardiovascular biomaterials.

Jingan Li (2020)

Some data provided by SemanticScholar