@article { ISI:000244008300028,
	title = {Influence of surfactant on ZnO varistors},
	journal = {Ceramics International},
	volume = {33},
	number = {2},
	year = {2007},
	month = {MAR},
	pages = {289-291},
	publisher = {ELSEVIER SCI LTD},
	type = {Article},
	address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND},
	abstract = {<p>ZnO varistors with and without surfactant such as sodium dodecyl sulphate (SIDS) are prepared by nitrate-combustion process. The samples were identically heat treated and sintered at 1000 degrees C for 12 h to study the influence of the surfactant on the nonlinear electrical properties of polycrystalline ZnO. It is observed that the nonlinear coefficient decreases marginally (alpha = 35) for samples prepared with surfactant, whereas breakdown field (E-B = 130 V/mm) decreased significantly. The corresponding parameters for the samples synthesized without surfactant are alpha = 45 and E-B = 400 V/mm. Hence, this method can be used for the manufacture of varistors with low to moderate breakdown fields. (c) 2005 Elsevier Ltd and Techna Group S.r.l. All rights reserved.</p>},
	keywords = {Chemical synthesis, Semiconductors, X-ray methods, ZnO},
	issn = {0272-8842},
	doi = {10.1016/j.ceramint.2005.08.010},
	author = {Dhage, S. R. and Navale, S. C. and Ravi, V.}
}
@article { ISI:000267159700033,
	title = {Investigations on Ru doped ZnO: strain calculations and gas sensing study},
	journal = {Sensors and Actuators B-Chemical},
	volume = {139},
	number = {2},
	year = {2009},
	month = {JUN},
	pages = {466-470},
	publisher = {ELSEVIER SCIENCE SA},
	address = {PO BOX 564, 1001 LAUSANNE, SWITZERLAND},
	abstract = {<p>Pure and ruthenium (Ru) doped nano-crystalline zinc oxide (ZnO) powders were synthesized by using well-known citrate gel route. Citric acid acts as a chelating agent and thus helps in the formation of nanoparticles. The detailed X-ray diffraction (XRD) studies using Hall equation reveal that in the nanoscale dimensions, incorporation of Ru modulates the lattice strain. It is interesting to note that on Ru doping, the compressive strain present in the undoped ZnO changes into tensile strain. We have tested the response of these specimens individually for reducing gases like H(2), LPG (liquefied petroleum gas), C(2)H(5)OH (ethanol), CO, acetone and oxidizing gases like NO, and Cl(2). Undoped ZnO responses perceptibly to LPG while Ru doped sample highly senses ethanol vapors. This might be due to either change in composition on Ru doping or/and difference between basicity of LPG and C(2)H(5)OH vapors. (C) 2009 Elsevier B.V. All rights reserved.</p>},
	keywords = {Citrate gel, Ethanol sensor, LPG sensor, Nanomaterials, ruthenium},
	issn = {0925-4005},
	doi = {10.1016/j.snb.2009.03.068},
	author = {Navale, Shalaka C. and Ravi, V. and Mulla, Imtiaz S.}
}
