Quantum-Dot/Organic Semiconductor Composites for Radiation Detection

Improved radiation detection using quantum‐dot/organic semiconductor composites is demonstrated. Electron scintillation results (see Figure) demonstrate more than a doubling of photon generation efficiency with quantum‐dot volume fraction. Simple estimates suggest that an ionization energy of about...

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Bibliographic Details
Published inAdvanced materials (Weinheim) Vol. 18; no. 1; pp. 77 - 79
Main Authors Campbell, I. H., Crone, B. K.
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 05.01.2006
WILEY‐VCH Verlag
Subjects
Förster transfer mechanism
Nanocrystals
Nanocrystals, semiconductor
organic
Scintillators
semiconductor
semiconductors
semiconductors, organic
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Summary:Improved radiation detection using quantum‐dot/organic semiconductor composites is demonstrated. Electron scintillation results (see Figure) demonstrate more than a doubling of photon generation efficiency with quantum‐dot volume fraction. Simple estimates suggest that an ionization energy of about 3 eV/photon may be achieved. These composites are promising for low cost and high energy resolution gamma‐ray, neutron, and charged‐particle detection.
Bibliography:This work was funded by a DOE NA-22 Exploratory Research Grant. The authors thank C. Chavez and M. Spilde for technical assistance.
ArticleID:ADMA200501434
istex:F10B8E679C8675E31EC63D3731118208918594D0
ark:/67375/WNG-7JC6WKCM-N
This work was funded by a DOE NA‐22 Exploratory Research Grant. The authors thank C. Chavez and M. Spilde for technical assistance.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200501434