AFM and SEM Characterization
of the CdS Nanoparticles Incorporated
into the Opal Crystal
Y. Barnakov*, S. Tsunegawa(a), A. Kasuya(a),
V. Poborchii(b), Y. Nishina(b), S. Samoilovich(c)
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Buryat Institute of Natural Sciences,
Institute for Materials Research,
Ioffe Physico-Technical Institute,
Moscow State University
a. Institute for Materials Research,
Tohoku University, Sendai 980-77, Japan
b. Ioffe Physico-Technical Institute
of the Russian Academy of Sciences,
St. Petersburg 198041, Russia
c. Moscow State University, Moscow, Russia |
This is an abstract
for a poster to be presented at the
Fifth
Foresight Conference on Molecular Nanotechnology.
There will be a link
from here to the full article when it is available on the
web.
We have synthesized and characterized CdS nanoparticles
incorporated into the voids of opal crystal. This is the first
time of AFM observation of pure and CdS doped opal crystal. It is
shown, the size of CdS nanoparticle, which getting from AFM
observation of CdS doped opal, is varied 70-90 nm. It is the
contradiction of the results of Raman spectra of the CdS-opal
sample, from what the frequency vibrations of this sample are
corresponded to the size of the Cds nanoparticles 10-30 nm. The
additional experiment - the high resolution SEM observation had
shown - the size of CdS nanoparticles is 10-30 nm. By analysis of
this results, we consider during the AFM scanning the tip removes
some part of the CdS (may be some boundary between CdS
nanoparticles with 10-30 nm sizes). It is well-known
"sweeping" process. It has proposed, during the AFM tip
scanning of the CdS-opal surface, that the measurement of the
bonding force from the force cuver, can give us the order of the
bonding force of some units of 10-30 nm CdS-nanoparticle. The
getting sample CdS-opal is a great candidate for the photonic
crystal.
*Corresponding Address:
Dr. Yuri A. Barnakov, Buryat Institute of Natural Sciences, Siberian Branch
of the Russian Academy of Sciences, St. Sah'yanovoi 6,
Ulan-Ude, 670042 Buryat Republic, Russia, ph: 7-30122-32107, fax:
7-30122-30134, email: [email protected]
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