@article { ISI:000245500200046,
	title = {Scanning tunneling microscopy/spectroscopy on Au nanoparticles assembled using lauryl amine (LAM) and octadecane thiol (ODT)},
	journal = {Applied Surface Science},
	volume = {253},
	number = {11},
	year = {2007},
	month = {MAR},
	pages = {5109-5115},
	publisher = {ELSEVIER SCIENCE BV},
	type = {Article},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>In this report, we demonstrate scanning tunneling microscopy and spectroscopy on thin filins of lauryl amine (LAM) and octadecane thiol (ODT) protected gold nanoparticles. We show that the zero current in the I-V curves (measure of Coulomb blockade (CB) of the nanoparticles) depends on the properties of the spacer molecule. In both the cases the gap voltage and the tunneling current at which the images are obtained are quite different which is further confirmed from the fitting performed based on the orthodox theory. The values for the capacitance and charging energy obtained from the fitting for ODT capped particles are comparable to the values obtained using spherical capacitor model. In contrast, values of these parameters were found to differ for LAM capped nanoparticles. While imaging, ODT capped nanoparticles were observed to drag along the scan direction leading to ordering of particles. Images of LAM capped gold nanoparticles show local ordering in self-assembly of particles although no evidence of large scale ordering in spatial Fourier transform was seen. These observations suggest that nanoparticles with larger CB would be intaged nonevasively in contrast to small CB systems for which tip induced effects will be dominant. In both the systems the current was found to rise faster than theoretical curves based on the orthodox theory suggesting that mechanism of charge transfer in this case may involve field emission rather than tunneling through a rectangular barrier. An attempt has been made to explain charge transfer based on Fowler-Nordheim (F-N) plots of the I-V curves. (c) 2006 Elsevier B.V All rights reserved.</p>},
	keywords = {Nanostructures, scanning tunneling microscopy (STM)},
	issn = {0169-4332},
	doi = {10.1016/j.apsusc.2006.11.038},
	author = {Datar, Suwarna and Chaudhary, Minakshi V. and Sastry, Murali and Dharmadhikari, C. V.}
}
@article { ISI:000260230400034,
	title = {Scanning tunneling microscopic and field emission microscopic studies of nanostructured molybdenum film synthesized by electron cyclotron resonance plasma},
	journal = {Vacuum},
	volume = {83},
	number = {2},
	year = {2008},
	month = {SEP},
	pages = {435-443},
	publisher = {PERGAMON-ELSEVIER SCIENCE LTD},
	address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND},
	abstract = {<p>Cathodic sputtering is demonstrated to be effective in synthesizing thin films of molybdenum nanoparticles. An electron cyclotron resonance plasma reactor has been used as the source. The particle size distribution is found to be controllable by proper choice of the cathodic bias potential. Sizes ranging between 20 and 30 nm deposited at the optimum bias potential are found to exhibit a self assembled structure as observed by scanning tunneling microscopy. Field emission microscopic studies on these films supported on W have exhibited very stable emission current over a period of 3 h. (C) 2008 Elsevier Ltd. All rights reserved.</p>},
	keywords = {ECR plasma, Field emission microscopy, Hollow cathode chemical sputtering, Mo nanoparticles, Scanning tunneling microscopy},
	issn = {0042-207X},
	doi = {10.1016/j.vacuum.2008.04.077},
	author = {Purohit, Vishwas S. and Bhise, Ashok B. and Dey, Shirshendu and More, Mahendra A. and Dharmadhikari, C. V. and Joag, Dilip S. and Pasricha, Renu and Bhoraskar, S. V.}
}
