title: Nanogap electrode fabrication for a nanoscale device by volume-expanding electrochemical synthesis.
abstract: A novel nanogap fabrication method using an electrochemical nanopatterning technique is presented. Electrochemical deposition of platinum ions reduces the microgap size to the sub-50-nm range due to the self-limited volume expansion of the electrodes. Additionally, the low crystallinity of platinum reduces the line edge roughness in the electrodes, whereas the high crystallinity of gold increases it. Current compliance, a buffered resistor, and a symmetric deposition strategy are used to achieve high reliability and practicality of nanogap electrodes. As a possible application, an organic thin-film transistor using the nanogap electrodes is also demonstrated.
authors: Nano-Oriented Bio-Electronic Lab, Department of Electrical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea.
authors: Ju-Hyun
authors: JH
authors: Kim
authors: Hanul
authors: H
authors: Moon
authors: Seunghyup
authors: S
authors: Yoo
authors: Yang-Kyu
authors: YK
authors: Choi