Combined electrical and Raman characterization of C60-based organic field effect transistors

Beynor A. Paez; Matthias Bartzsch; Georgeta Salvan; Reinhard Scholz; Thorsten U. Kampen; Dietrich R. T. Zahn

doi:10.1117/12.506019

17 November 2003 Combined electrical and Raman characterization of C₆₀-based organic field effect transistors

Beynor A. Paez, Matthias Bartzsch, Georgeta Salvan, Reinhard Scholz, Thorsten U. Kampen, Dietrich R. T. Zahn

Proceedings Volume 5217, Organic Field Effect Transistors II; (2003) https://doi.org/10.1117/12.506019
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

Raman spectroscopy is capable of distinguishing neutral and charged states of organic molecules due to its sensitivity for charge induced changes in the molecular geometry and the bond strength.Combined with in situ electrical measurements it provides a powerful tool for characterizing charged molecules in the channel of organic field effect transistors OFETs. The active 3nm C₆₀ layer in an OFET structure with bottom gate con figuration was characterized by in situ Raman spectroscopy using the 514.5 nm (2.41 eV)Ar⁺ laser line as a function of the drain source (V_ds) voltage. The Raman spectra show pronounced changes upon application of a drain source V_ds voltage. The experimental findings are compared to the vibrational spectra calculated for molecules under external bias fields. Complementary to the Raman characterization,the I_d-V_ds and I_d-V_gs characteristics were recorded and the mobility value of 0.1 cm²/V s was derived from these measurements.

Citation Download Citation

Beynor A. Paez, Matthias Bartzsch, Georgeta Salvan, Reinhard Scholz, Thorsten U. Kampen, and Dietrich R. T. Zahn "Combined electrical and Raman characterization of C₆₀-based organic field effect transistors", Proc. SPIE 5217, Organic Field Effect Transistors II, (17 November 2003); https://doi.org/10.1117/12.506019

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