Solution-processed pentathiophene dendrimer based photodetectors for digital cameras

Pandey, A. K., Johnstone, K. D., Burn, P. L. and Samuel, I. D. W. (2014) Solution-processed pentathiophene dendrimer based photodetectors for digital cameras. Sensors and Actuators B: Chemical, 196 245-251. doi:10.1016/j.snb.2014.01.049

Author Pandey, A. K.
Johnstone, K. D.
Burn, P. L.
Samuel, I. D. W.
Title Solution-processed pentathiophene dendrimer based photodetectors for digital cameras
Journal name Sensors and Actuators B: Chemical   Check publisher's open access policy
ISSN 0925-4005
Publication date 2014-01-01
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.snb.2014.01.049
Open Access Status Not yet assessed
Volume 196
Start page 245
End page 251
Total pages 7
Place of publication Lausanne, Switzerland
Publisher Elsevier
Language eng
Subject 2504 Electronic, Optical and Magnetic Materials
3105 Instrumentation
3104 Condensed Matter Physics
2508 Surfaces, Coatings and Films
2506 Metals and Alloys
2505 Materials Chemistry
2208 Electrical and Electronic Engineering
Abstract The photosensing ability of two blue-absorbing dendrimers is presented. Bulk heterojunction photodetectors were fabricated by spin-coating a blend solution of quinquethiophene (pentathiophene) cored conjugated dendrimers and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM). The photoresponse characterized under monochromatic illumination at 442 nm increases linearly with a dynamic range of ∼105. The response approaches that required for spectral selectivity for camera applications, and the external quantum efficiency of the photodetectors reached up to 22.5% at 435 nm.
Keyword Dendrimers
Machine vision
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID EP/C542398
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Chemistry and Molecular Biosciences
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