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Development of an ionising radiation detector based on quantum dots absorbed in porous glass

Publication ,  Conference
Baharin, R; Hobson, PR; Leslie, DE; Smith, DR
Published in: Proceedings of the IEEE Conference on Nanotechnology
November 22, 2012

In this work, we report measured effects on the fluorescent emission spectra of commercially produced core-shell (CdSe/ZnS) quantum dots (QDs). We report the effects on the fluorescent emission spectra of commercially produced CdSe/ZnS QDs of 2.5 nm, 3.3 nm and 6.3 nm size in toluene, following exposure to 1 MeV gamma irradiation in the range 0.1-110 Gy. We show that damage depends on the size of the QDs and that increasing the concentration of QDs in the toluene decreases the effect. Recent work on the production of a prototype 2D imaging dosimeter, by absorbing a solution of green emitting QD in toluene into a sample of porous Vycor glass, has shown that QDs absorbed in the Vycor fluoresce under several hours of continual illumination and that the system continues to show fluorescence for several days after the initial preparation. Initial results of experiments to dynamically image the Vycor during electron irradiation are presented as is progress on the development of a second prototype device for 2D radiation dosimetry. © 2012 IEEE.

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Published In

Proceedings of the IEEE Conference on Nanotechnology

DOI

EISSN

1944-9380

ISSN

1944-9399

Publication Date

November 22, 2012
 

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Baharin, R., Hobson, P. R., Leslie, D. E., & Smith, D. R. (2012). Development of an ionising radiation detector based on quantum dots absorbed in porous glass. In Proceedings of the IEEE Conference on Nanotechnology. https://doi.org/10.1109/NANO.2012.6322009
Baharin, R., P. R. Hobson, D. E. Leslie, and D. R. Smith. “Development of an ionising radiation detector based on quantum dots absorbed in porous glass.” In Proceedings of the IEEE Conference on Nanotechnology, 2012. https://doi.org/10.1109/NANO.2012.6322009.
Baharin R, Hobson PR, Leslie DE, Smith DR. Development of an ionising radiation detector based on quantum dots absorbed in porous glass. In: Proceedings of the IEEE Conference on Nanotechnology. 2012.
Baharin, R., et al. “Development of an ionising radiation detector based on quantum dots absorbed in porous glass.” Proceedings of the IEEE Conference on Nanotechnology, 2012. Scopus, doi:10.1109/NANO.2012.6322009.
Baharin R, Hobson PR, Leslie DE, Smith DR. Development of an ionising radiation detector based on quantum dots absorbed in porous glass. Proceedings of the IEEE Conference on Nanotechnology. 2012.

Published In

Proceedings of the IEEE Conference on Nanotechnology

DOI

EISSN

1944-9380

ISSN

1944-9399

Publication Date

November 22, 2012