Linear electronic and optical processes in Fullerene thin films

J. Moghal; N. Brant; S. B. Phelan; H. J. Byrne; G. Chambers

doi:10.1117/12.605177

2 June 2005 Linear electronic and optical processes in Fullerene thin films

J. Moghal, N. Brant, S. B. Phelan, H. J. Byrne, G. Chambers

Proceedings Volume 5824, Opto-Ireland 2005: Nanotechnology and Nanophotonics; (2005) https://doi.org/10.1117/12.605177
Event: OPTO-Ireland, 2005, Dublin, Ireland

Abstract

The electrical properties of C60 have been extensively studied in both the solid and solution phases. The vibrational spectroscopy of C60 is predominantly molecular in character. However electronic spectroscopy reveals features, which are specific to the solid. These features have been attributed to intermolecular charge transfer states. The relative importance of these inter- and intramolecular processes in terms of their contribution to the electronic transport is discussed. Cyclic voltammetry is employed to generate charged molecular species, which also contribute to the conduction process and comparisons to optical excited states species are drawn. The cyclic voltammetry was monitored in situ with vibrational spectroscopy so as to observe any shifts in the C₆₀ spectrum due to charging. The current voltage characteristics of thin film sandwich structures fabricated by vacuum are then presented and discussed. A strongly non-linear behaviour is observed, a sharp increase in the device conductance being observed at relatively low voltages at both room temperature and at 20K. The room temperature IV curves confirm a lattice collapse upon charging. The high conductivity state is however observed to be stable at low temperature.

Citation Download Citation

J. Moghal, N. Brant, S. B. Phelan, H. J. Byrne, and G. Chambers "Linear electronic and optical processes in Fullerene thin films", Proc. SPIE 5824, Opto-Ireland 2005: Nanotechnology and Nanophotonics, (2 June 2005); https://doi.org/10.1117/12.605177

ACCESS THE FULL ARTICLE

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