Title :
Temperature dependent transport in nanotube bioconjugates
Author :
Jing, X. ; Singh, K.V. ; Wang, X. ; Ozkan, M. ; Ozkan, C.S.
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Riverside, CA, USA
Abstract :
Carbon nanotube (CNT) based bioconjugates are among the candidates for molecular level electronics. In this work, we have studied transport mechanism of single walled carbon nanotube (SWNT) - peptide nucleic acid (PNA) bioconjugates. Electrical conductivity of the bioconjugates was studied at temperatures ranging from 70 K to 350 K. Negative differential resistance (NDR) behavior was observed at almost all temperatures and conductivity was found to increase with increasing temperatures. NDR behavior can be attributed to alignment and misalignment of energy bands of SWNT and PNA under different voltages.
Keywords :
biomolecular electronics; carbon nanotubes; electrical conductivity; nanotube devices; thermal analysis; CNT; SWNT-peptide nucleic acid bioconjugates; electrical conductivity; molecular level electronics; nanotube bioconjugates; negative differential resistance; single walled carbon nanotube; temperature 70 K to 350 K; temperature dependent transport; Amino acids; Carbon nanotubes; Conductivity; Electric resistance; Electric variables measurement; Immune system; Molecular electronics; Oxidation; Presence network agents; Temperature dependence;
Conference_Titel :
Solid-State and Integrated-Circuit Technology, 2008. ICSICT 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2185-5
Electronic_ISBN :
978-1-4244-2186-2
DOI :
10.1109/ICSICT.2008.4734601
