Title :
Spectral analysis of current fluctuations in CdS nanocombs and nanowires array
Author :
Kashid, Ranjit V. ; Chavan, Padmakar G. ; Mulla, Imtiaz S. ; Joag, Dilip S. ; More, Mahendra A.
Author_Institution :
Dept. of Phys., Univ. of Pune, Pune, India
Abstract :
The field emission studies and, in particular, spectral analysis of field emission current from CdS nanocombs and nanowires array have been carried out at a base pressure of ~1×10-8 mbar. The CdS nanocombs and nanowires array are found to exhibit step like fluctuations in the field emission current. The power spectra for nanocombs and nanowires array show slope values ~2 and ~1.8, respectively, implying that the field emission current fluctuations occur due to the generation-recombination of charge carriers at surface states.
Keywords :
cadmium compounds; field emission; nanowires; spectral analysis; CdS; charge carrier; field emission current fluctuation; nanocomb; nanowires array; spectral analysis; Arrays; Cathodes; Charge carriers; Fluctuations; Nanowires; Noise; Spectral analysis; field emission; generation-recombination; nanocombes; nanowires; noise; surface states;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2012 IEEE Thirteenth International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4673-0188-6
Electronic_ISBN :
978-1-4673-0187-9
DOI :
10.1109/IVEC.2012.6262105
