Issue 41, 2010

Periodic arrays of organic crystals on polymer gate dielectric for low-voltage field-effect transistors and complementary inverter

Abstract

Periodic arrays of highly oriented 7,7,8,8-tetracyanoquinodimethane (TCNQ) crystals, directly grown on a polymeric gate dielectric through a solution process, are used for the fabrication of a low-voltage organic field-effect transistor (OFET). Consequently, an organic complementary inverter using the TCNQ periodic array (n-channel) and pentacene (p-channel) is also reported. The TCNQ-based n-channel OFET exhibited very stable field-effect characteristics with low operational (2 V) and threshold voltages (<0.5 V). The highest field-effect carrier mobility in the saturation region was found to be 0.03 cm2 V−1 s−1. Furthermore, the organic complementary inverter showed good response characteristics in the low-voltage regime. The swing range of VOUT is same as VDD, ensuring “zero” static power consumption in the digital logic circuit. For the inverter with VDD = 2 V, the noise margin for low and high voltages are 1.0 V and 0.3 V, respectively. The logic threshold (VIN = VOUT) is 1.3 V and the maximum gain (−dVOUT/dVIN) of 4 is obtained at VIN = 1.3 V.

Graphical abstract: Periodic arrays of organic crystals on polymer gate dielectric for low-voltage field-effect transistors and complementary inverter

Article information

Article type
Paper
Submitted
27 Apr 2010
Accepted
16 Jul 2010
First published
10 Sep 2010

J. Mater. Chem., 2010,20, 9047-9051

Periodic arrays of organic crystals on polymer gate dielectric for low-voltage field-effect transistors and complementary inverter

B. Mukherjee, T. J. Shin, K. Sim, M. Mukherjee, J. Lee, S. H. Kim and S. Pyo, J. Mater. Chem., 2010, 20, 9047 DOI: 10.1039/C0JM01220C

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.

Spotlight

Advertisements