We report an efficient method for the fabrication of a single electron transistor (SET) using DNA-assisted assembly of nanoparticles. In this method, the DNA molecules function not only as the assembler, but also as the modulator for the electron tunneling behaviors of single electron transistors. A study of the assembly between an Au nanoparticle (∼10 nm) and various lengths of DNA molecules confirms the effectiveness of this method in creating a SET. Most devices exhibited clear single electron effects.
Bibliographical noteFunding Information:
We give thanks to Y. M. Kim and K. T. Son (KBSI) for TEM analyses and to S. M. Lee. This research is supported by the National R&D Project for Nano Science and Technology and KOSEF through National Core Research Center for Nanomedical Technology (Grant No. R15-2004-024-00000-0) and the Basic Research Program of KOSEF [Grant No. R02-2004-000-10096-0 (2004)].
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)