The unique structural, electronic, and mechanical properties of single-walled carbon nanotubes (SWNTs) have opened the doors to developments that push the limits of science. These advancements not only further scientific discovery, but also result in the development of everyday practical applications. These applications vary from singlemolecule sensors to nano-scaled transistors to multi-modal biosensors. This article focuses on three distinct developments made as a result of recent advances in spectroscopy of SWNTs. The first system examines the use of SWNTs for molecular detection using near-infrared light to produce tunable fluorescent sensors that are highly photostable. The second system examines the use of a 4-hydroxybenzene diazonium reagent to sort SWNTs based on electronic structure to create on-chip modifications of nano-electronic devices. The third system characterizes nanotube networks for such applications as flexible electronics, exploring the irreversible binding of adsorbates onto nanotube networks using electrical transport and Raman spectroscopy.
Bibliographical noteFunding Information:
M.S. would like to acknowledge contri butions from Seunghyun Baik, Jae-Hee Han, Monica Usrey, and Dr. Choi. They have all contributed significantly to the work described in this article. Appreciation is also extended to many postdoctoral and graduate students. M.S. wishes to acknowledge all of the financial support that enabled the early career acknowledged in the MRS Outstanding Young Investigator Award: School of Chemical Sciences at the University of Illinois, National Cancer Institute at the National Institutes of Health, National Science Foundation— particularly a career award, the Presidential Early Career Award for Scientists and Engineers, the Beckman Young Investigator Award, the Office of Naval Research Young Investigator Award, Air Force Office of Scientific Research, the Dupont Company, support from a Class A grant from Intel, the Institute of Solider Nanotechnologies at MIT, American Chemical Society—PRF grant, and an Early Career Award from the 3M Company.