Bolometric detector embedded in a polycrystalline diamond grown by chemical vapor deposition

Galkina, T. I.; Klokov, A. Yu.; Sharkov, A. V.; Хмельницкий, Р. А.; Gippius, A. A.; Dravin, V. A.; Ralchenko, V.G.; Savel'ev, A. V.

doi:10.1134/s1063783407040099

Cited by 16 publications

(12 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The resistance of bolometers at room temperature was 0.1 ë 0.9 kO (depending on the sensitive element length) at currents through bolometers from 10 to 3000 mA and the speciéc resistance of the layer was 4 Â 10 À5 O m. The temperature dependence of the resistance of bolometers in the temperature range from 230 to 380 K was linear, with a temperature coefécient of À1X5 Â 10 À4 K À1 coinciding with the values obtained earlier for bolometers based on natural diamond and CVD diamond élms [1,2].…”

Section: Artiécial Diamond and A Bolometric Structuresupporting

confidence: 53%

“…Figure 3 shows the thermal responses of bolometers based on the buried graphitized layer in natural type IIa diamond, artiécial polycrystalline CVD diamond, and artiécial HPTH diamond. The model that can be used for determining the heat conduction of diamond and a graphitized layer by analysing the thermal components of responses is described in detail in papers [2,5]. Note that responses recorded in natural type IIa diamond, polycrystalline CVD diamond, and HPHT diamond studied in this paper almost completely coincide.…”

Section: Resultsmentioning

confidence: 92%

“…1a). At the same time, the response also exists in the range from 0 to 30 ns [curve ( 2 ) in Fig. 2] when the laser falls in a region between contacts, where the buried graphitised layer is absent (point 2 in Fig.…”

Section: Resultsmentioning

confidence: 94%

“…We reported earlier the development and manufacturing of a bolometer based on a buried and then graphitized layer in type II natural diamond [1] and also in artiécial polycrystalline chemical vapour deposited (CVD) diamond [2]. Due to the record high (up to 24 W cm À1 K À1 ) heat conduction of diamond, bolometers with resistive elements buried into diamond feature high-speed response.…”

Section: Introductionmentioning

confidence: 98%

See 3 more Smart Citations

Fast bolometer built in an artificial HPHT diamond matrix

et al. 2010

View full text Add to dashboard Cite

show abstract

Section: Artiécial Diamond and A Bolometric Structuresupporting

confidence: 53%

Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 98%

See 2 more Smart Citations

Fast bolometer built in an artificial HPHT diamond matrix

et al. 2010

View full text Add to dashboard Cite

show abstract

“…The definition of graphitic conductive regions in diamond has found several interesting applications, such as ohmic contacts [27][28][29][30], infrared radiation emitters [31], field emitters [32], bolometers in both single-crystal [33] and polycrystalline [34] samples, metallo-dielectric photonic crystals [35] and ionizing radiation detectors for x-ray [36] and MeV ion [37] beams.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and electrical characterization of three-dimensional graphitic microchannels in single crystal diamond

et al. 2012

View full text Add to dashboard Cite

We report on the systematic characterization of conductive micro-channels fabricated in single-crystal diamond with direct ion microbeam writing. Focused high-energy (∼MeV) helium ions are employed to selectively convert diamond with micrometric spatial accuracy to a stable graphitic phase upon thermal annealing, due to the induced structural damage occurring at the end-of-range. A variable-thickness mask allows the accurate modulation of the depth at which the microchannels are formed, from several µm deep up to the very surface of the sample. By means of cross-sectional transmission electron microscopy (TEM), we demonstrate that the technique allows the direct writing of amorphous (and graphitic, upon suitable thermal annealing) microstructures extending within the insulating diamond matrix in the three spatial directions, and in particular, that buried channels embedded in a highly insulating matrix emerge and electrically connect to the sample surface at specific locations. Moreover, by means of electrical characterization at both 2 room temperature and variable temperature, we investigate the conductivity and the charge-transport mechanisms of microchannels obtained by implantation at different ion fluences and after subsequent thermal processes, demonstrating that upon high-temperature annealing, the channels implanted above a critical damage density convert into a stable graphitic phase. These structures have significant impact for different applications, such as compact ionizing radiation detectors, dosimeters, bio-sensors and more generally diamond-based devices with buried three-dimensional all-carbon electrodes.

show abstract