Russian Journal of Applied Chemistry, 2010, Vol. 83, No. 1, pp. 154−156.
Pleiades Publishing, Ltd., 2010.
Original Russian Text
А.N. Eremenko, I.I. Obraztsova, N.K. Eremenko, 2010, published in Zhurnal Prikladnoi Khimii, 2010, Vol. 83, No. 1, pp. 157−159.
А. N. Eremenko, I. I. Obraztsova, and N. K. Eremenko
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch,
Russian Academy of Sciences, Kemerovo, Russia
Received 2 April, 2009
Abstract—Nanodiamonds thermoluminescence was studied. It was compared with thermoluminescence of
synthetic diamonds of relative purity, weakly and strongly boron-doped. A dependence of the nanodiamond
thermoluminescence on an irradiation dose was examined.
Among all the nanomaterials varieties nanodiamond
is the most interesting investigation object. Firstly, even
massive diamond (for example, natural) possesses unique
combination of chemical, physical-chemical (thermal-
physical essentially) and mechanic properties. Secondly,
diamond acquires more clearly expressed anomalous
properties as a result of miniaturization to average size
4-6 nm from plasma during explosives detonation.
Thermoluminscence (TL) is effective method to
examine structural and impurity defects in diamond.
Thermoluminescence of synthetic diamonds is well
studied [1−4]. Unlike synthetic diamonds, superdispersed
form is of greater size (5 nm), and substantial part of atoms
(>10%) composed crystals are located nearby particle
surface and is subjected to its effect. We found no literary
data about thermoluminescence of nanodiamonds.
In this work a possibility of use of nanodiamond as
thermoluminscence material on registration of ionizing
irradiation for dosimetry of high irradiation doses (up to
10 000 Gy) was examined. This can be applied to various
spheres: to operation with radiation-chemical, physical,
biological debices in investigation of radiation effect on
substances, materials and biological objects; to carrying
out of nucleus-physical analysis and also to environment
monitoring in dosimetric control instruments. On the
basis that surface effects strongly on thermoluminscence,
nanodiamonds (fractional size 5 nm) luminescence should
be very weak. Indeed, registration of the latter was found
to be arduous technical problem.
After condition selection for sure registration of
nanodiamonds thermoluminescence it was compared
with that for synthetic diamonds (SDs) of three types:
conditionally clear, and weakly and strongly boron
For investigation of thermoluminescence we used
nanodiamond obtained by detonation method and
puriﬁ ed by the previously developed procedure .
Synthetic diamonds: conditionally clear (SAM grade),
and containing small and substantial boron impurities
were examined to compare.
Registration of thermoluminescence curves were
performed in the wide temperature range (20−450°С),
changing the heating rates from 0.5 to 8 deg s
field of registration was varied by means of light
ﬁ lters. Intensities of the registered signals could differ
by 6-7 orders of magnitude with the aid of a change
in photodetector FEU-130 voltage and of recorder
Research of diamond powder impurities was carried
out on a X-ray ﬂ uorescence analyzer Spectrace-900.
Three isotopes: Cd-109 of 33, Am-241 of 80, Fe-55 of 8
keV used as excitation sources.
Instrument was calibrated relarive to ﬁ ve standard
samples: Fe, Zn, Pb, Ti, Sn. Isotope Fe-55 was calibrated
relative to titanium standard, Cd-109, relative to three
standards: iron, zinc and lead, Am-241, relative to tin