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Electroluminescent properties of CdS/CNT hybrid material
Author(s) -
Okotrub A. V.,
Gusel'nikov A. V.,
Algaer Yu. A.,
Kudashov A. G.,
Larionov S. V.,
Bulusheva L. G.
Publication year - 2010
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201000348
Subject(s) - cadmium sulfide , electroluminescence , materials science , luminescence , carbon nanotube , nanoparticle , transmission electron microscopy , scanning electron microscope , substrate (aquarium) , nanotechnology , silicon , field electron emission , chemical engineering , optoelectronics , electron , composite material , oceanography , layer (electronics) , geology , engineering , metallurgy , physics , quantum mechanics
Aligned multiwall carbon nanotube (CNT) arrays were used for deposition of cadmium sulfide (CdS) nanoparticles from an aqueous solution containing thiourea, CdCl 2 , and ammonia. Scanning electron microscopy (SEM) showed that used deposition technique does not destroy vertical orientation of CNTs to silicon substrate. The size of CdS nanoparticles formed on the side surface and ends of CNTs was estimated by transmission electron microscopy (TEM) to be about 30 nm. It was found that CdS nanoparticles became luminescent during field electron emission from CNTs. Different color of the luminescence image was related to different size of the nanoparticles.Scheme of appearance of electroluminescence from CdS/CNT hybrids and image of luminous cathode surface.