@article { ISI:000267498700010, title = {Field emission investigation of single Fe-doped SnO2 wire}, journal = {Solid State Sciences}, volume = {11}, number = {6}, year = {2009}, month = {JUN}, pages = {1114-1117}, publisher = {ELSEVIER SCIENCE BV}, address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}, abstract = {

Tin oxide submicronwires doped with Fe element were prepared by the thermal evaporation method. Morphological and structural characterizations revealed wires with sub micron size and crystalline in nature. The field electron emission from the single Fe:SnO2 wire was carried out in conventional field emission microscope. The Fowler-Nordheim plot obtained from I-V characteristics of the wire showed a linear behavior typical that of metal. The field enhancement factor estimated from the slope of the F-N plot is 7455 cm(-1), indicating that the field emission is from nanometric features of the emitter. A current density of 10 A/cm(2) has been obtained at an applied field of 4.845 x 10(3) V/mu m. The field emission current-time record at a current level of 1 mu A for more than 3 h duration is promising for various field emissions based applications. (C) 2009 Published by Elsevier Masson SAS.

}, keywords = {Current stability, Fe doped, field emission, SnO2}, issn = {1293-2558}, doi = {10.1016/j.solidstatesciences.2009.02.011}, author = {Bhise, Ashok B. and Late, Dattatray J. and Sathe, Bhaskar R. and More, Mahendra A. and Mulla, Imtiaz S. and Pillai, Vijayamohanan K. and Joag, Dilip S.} } @article { ISI:000330143000008, title = {CdS nanowires: ultra-long growth and enhanced field emission properties}, journal = {Vaccum}, volume = {101}, number = {SI}, year = {2014}, month = {MAR}, pages = {38-45}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, type = {Article}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

Here, we report the synthesis of ultra-long CdS nanowires with aspect ratio similar to 8 x 10(4) by simple route of thermal evaporation technique. A change in the vertical arrangement of quartz boats leads in to the synthesis of ultra-long CdS nanovvires via high degree of condensation. This technique is seen to be cost effective and easy. The growth of the nanowires is found to be increased very rapidly from few micrometers to few millimeters. The possible reason for the growth of the ultra-long CdS nanowires is discussed in detail. The turn-on field defined for the current density of similar to 0.1 mu A/cm(2) has been found to be similar to 1.4, 1.45, 1 and 0.17 V/mu m for specimen A, B, C and D (specimens A-D, synthesized by variation in synthesis parameters) respectively. The turn-on field of the specimen D (similar to 0.17 V/mu m) is found to be quite superior than the value reported for other CdS nanoforms which is very remarkable. Simple way of bulk fabrication leads to the low turn-on value which indicates a possible use of the present emitter in the micro/nanoelectronics devices. (C) 2013 Elsevier Ltd. All rights reserved.

}, keywords = {Current stability, field emission, synthesis}, issn = {0042-207X}, doi = {10.1016/j.vacuum.2013.07.019}, author = {Chavan, Padmakar G. and Kashid, Ranjit V. and Badhade, Satish S. and Mulla, Imtiaz S. and More, Mahendra A. and Joag, Dilip S.} } @conference { ISI:000352795700039, title = {Photo-enhanced field emission studies of tapered CdS nanobelts}, booktitle = {2014 27th International Vacuum Nanoelectronics Conference (IVNC) }, series = {International Vacuum Nanoelectronics Conference}, year = {2014}, note = {27th International Vacuum Nanoelectronics Conference (IVNC), Engelberg, SWITZERLAND, JUL 06-10, 2014}, month = {JUL}, publisher = {Paul Scherrer Inst; EMPA, Mat Sci \& Technol; Swiss Nanoscience Inst; Appl MicroSWISS; Amer Elements; Amer Vacuum Soc; IEEE, Electron Devices Soc}, organization = {Paul Scherrer Inst; EMPA, Mat Sci \& Technol; Swiss Nanoscience Inst; Appl MicroSWISS; Amer Elements; Amer Vacuum Soc; IEEE, Electron Devices Soc}, address = {345 E 47th St, New York, NY 10017 USA}, abstract = {

Field emission and photo-enhanced field emission characteristics of single crystalline tapered CdS nanobelts have been investigated. The turn-on field for the emission current density of similar to 0.1 mu A/cm(2) is found to be similar to 2.1 V/mu m, which is much lower than reported values for various CdS nanostructures. The photo-enhanced field emission current shows a reproducible photo-switching behavior with rise in current level nearly four times that of its initial preset value (similar to 1 mu A) which is found to be very remarkable. Possible mechanism of photo-enhanced field emission is discussed.

}, keywords = {Current stability, field emission, Nanobelts, Photoswitching}, isbn = {978-1-4799-5306-6}, issn = {2164-2370}, author = {Chavan, Padmakar G. and More, Mahendra A. and Joag, Dilip S. and Badadhe, Satish S. and Mulla, Imtiaz S.}, editor = {Tsujino, S. and Gobrecht, J. and Paraliev, M. and Braun, H. H. and Groening, O. and Feurer, T.} } @article {43980, title = {Enhanced field emission performance of NiMoO4 nanosheets by tuning the phase}, journal = {Applied Surface Science}, volume = {418}, year = {2017}, month = {OCT}, pages = {270-274}, type = {Journal Article}, abstract = {In this paper we report, large scale synthesis of α and β-NiMoO4 by a facile hydrothermal method and we observed that urea plays important role on the growth of β-NiMoO4 nanosheets. We have also carried out field emission (FE) investigations of α and β-NiMoO4 at a base pressure of \~{}1 {\texttimes} 10-8 mbar. The obtained turn-on field at emission current density of 1 μA/cm2 for β-NiMoO4 nanosheets and α -NiMoO4 is 1.3 V/μm and 2.2 V/μm respectively were observed. The maximum field emission current density of 1.006 mA/cm2at an applied electric field of 2.7 V/μm was achieved for β-NiMoO4 nanosheets. Furthermore, we found that the β-NiMoO4 nanosheets possess good field emission performance compared to α-NiMoO4. The results indicate that NiMoO4can be used as a promising material in FE applications with possibility of tuning field emission performance by controlling the phase.}, keywords = {Current stability, field emission, nanosheets, NiMoO4}, doi = { 10.1016/j.apsusc.2017.02.177}, author = {Bankar, P. K.}, editor = {Ratha, S.} } @article {48342, title = {Titanium trisulfide nanosheets and nanoribbons for field emission- based nanodevices}, journal = {ACS Applied Nano Materials}, volume = {6}, year = {2023}, month = {JAN}, pages = {44-49}, type = {Article}, abstract = {

The field emission (FE) properties of TiS3 nanosheets and nanoribbons, synthesized by direct sulfuration of bulk titanium, are investigated. The nanosheets show an enhanced FE behavior with a low turn-on field of similar to 0.3 V/ mu m, required for drawing an emission current density of similar to 10 mu A/cm2. Interestingly, the TiS3 nanosheet emitter delivered a large emission current density of similar to 0.9 mA/ cm2 at a relatively low applied electric field of similar to 0.4 V/mu m. We have estimated the values of the field enhancement factor (beta), which are found to be similar to 5 x 104 for the TiS3 nanosheet emitter and similar to 4 x 103 for the nanoribbon emitter. We attribute the superior FE performance to the presence of atomically sharp edges and the reduced thickness of TiS3, as reflected in the high value of beta. In fact, the nanosheet sample presents a higher density of ultrathin layers (similar to 12 nm-thick), and thus, they have a larger edge to volume ratio than the nanoribbon samples (which are similar to 19 nm-thick). The superior FE behavior of TiS3 nanosheets over nanoribbons makes them a propitious field emitter and can be utilized for various FE-based applications, demanding large emission currents and lower operational voltages. Moreover, the FE current stability recorded on these samples confirms their promising performance. Thus, the present investigation brings out a great promise of TiS3 nanosheets and nanoribbons as field emitters for vacuum nanoelectronics devices.

}, keywords = {Current stability, field emission, nanoribbon, nanosheets, TiS3}, doi = {10.1021/acsanm.2c03460}, author = {Pawbake, Amit S. and Khare, Ruchita T. and Island, Joshua O. and Flores, Eduardo and Ares, Jose R. and Sanchez, Carlos and Ferrer, Isabel J. and Pawar, Mahendra and Frank, Otakar and More, Mahendra A. and van der Zant, Herre S. J. and Castellanos-Gomez, Andres and Late, Dattatray J.} }