@article { ISI:000280514500009, title = {Synthesis of Rh-carbon nanotube based heterostructures and their enhanced field emission characteristics}, journal = {Chemical Communications}, volume = {46}, number = {31}, year = {2010}, month = {JUL}, pages = {5671-5673}, publisher = {ROYAL SOC CHEMISTRY}, address = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND}, abstract = {

Selective decoration of Rh nanospheres on acid functionalized carbon nanotubes has been demonstrated using Al as a sacrificial substrate. Remarkable field emission has been observed for this heterostructure as a high current density of 170 mu A cm(-2) is generated at an ultra-low threshold of 300 V mu m(-1), compared to much smaller values for Rh nanospheres and carbon nanotubes separately.

}, issn = {1359-7345}, doi = {10.1039/c0cc01532f}, author = {Sathe, Bhaskar R. and Kakade, Bhalchandra A. and Kushwaha, Ajay and Aslam, Mohammed and Pillai, Vijayamohanan K.} } @article { ISI:000291715300005, title = {Electrochemical unzipping of multi-walled carbon nanotubes for facile synthesis of high-quality graphene nanoribbons}, journal = {Journal of the American Chemical Society}, volume = {133}, number = {12}, year = {2011}, month = {MAR}, pages = {4168-4171}, publisher = {AMER CHEMICAL SOC}, address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA}, abstract = {

Here we report a remarkable transformation of carbon nanotubes (CNTs) to nanoribbons composed of a few layers of graphene by a two-step electrochemical approach. This consists of the oxidation of CNTs at controlled potential, followed by reduction to form graphene nanoribbons (GNRs) having smooth edges and fewer defects, as evidenced by multiple characterization techniques, including Raman spectroscopy, atomic force microscopy, and transmission electron microscopy. This type of {\textquoteleft}{\textquoteleft}unzipping{\textquoteright}{\textquoteright} of CNTs (single-walled, multi-walled) in the presence of an interfacial electric field provides unique advantages with respect to the orientation of CNTs, which might make possible the production of GNRs with controlled widths and fewer defects.

}, issn = {0002-7863}, doi = {10.1021/ja1101739}, author = {Shinde, Dhanraj B. and Debgupta, Joyashish and Kushwaha, Ajay and Aslam, Mohammed and Pillai, Vijayamohanan K.} } @article { ISI:000292113700065, title = {Novel catalyst-free synthesis of vertically aligned silicon nanowire-carbon nanotube heterojunction arrays for high performance electron field emitters}, journal = {Chemical Communications}, volume = {47}, number = {27}, year = {2011}, month = {JUN}, pages = {7785-7787}, publisher = {ROYAL SOC CHEMISTRY}, address = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND}, abstract = {

A novel, catalyst-free strategy for the direct synthesis of vertically aligned silicon nanowire-carbon nanotube (SiNW-CNT) heterojunction arrays is presented. Such a heterojunction with the junction area in the nanoscale displays enhanced field emission characteristics at low turn-on field, with a nearly three times increase in the field enhancement factor.

}, issn = {1359-7345}, doi = {10.1039/c1cc12243f}, author = {Kale, Vinayak S. and Sathe, Bhaskar R. and Kushwaha, Ajay and Aslam, Mohammed and Shelke, Manjusha V.} }