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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 3 — Feb. 5, 2007
  • pp: 1128–1134

Nanocrystal hybridized scintillators for enhanced detection and imaging on Si platforms in UV

Evren Mutlugun, Ibrahim Murat Soganci, and Hilmi Volkan Demir  »View Author Affiliations


Optics Express, Vol. 15, Issue 3, pp. 1128-1134 (2007)
http://dx.doi.org/10.1364/OE.15.001128


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Abstract

We report on the conception, design, fabrication, experimental characterization, and theoretical analysis of nanocrystal scintillators hybridized on Si detectors and CCDs for enhanced detection and imaging in UV. Integrating luminescent CdSe/ZnS core-shell nanocrystals (NCs of 3.2 and 5.2 nm in diameter with 5% size distribution) to efficiently convert incident UV radiation to visible emission, we demonstrate hybrid NC-Si photodetectors that exhibit significantly improved responsivity between 200-240nm, experimentally with a two orders of magnitude peak enhancement and theoretically with a three orders of magnitude peak enhancement. Such nanocrystal based scintillators hold great promise in UV detection and imaging on Si platforms.

© 2007 Optical Society of America

OCIS Codes
(040.0040) Detectors : Detectors
(040.6040) Detectors : Silicon
(160.2540) Materials : Fluorescent and luminescent materials
(250.0250) Optoelectronics : Optoelectronics
(260.7190) Physical optics : Ultraviolet

ToC Category:
Metamaterials

History
Original Manuscript: January 2, 2007
Revised Manuscript: January 30, 2007
Manuscript Accepted: January 30, 2007
Published: February 5, 2007

Citation
Evren Mutlugun, Ibrahim M. Soganci, and Hilmi V. Demir, "Nanocrystal hybridized scintillators for enhanced detection and imaging on Si platforms in UV," Opt. Express 15, 1128-1134 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-3-1128


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