Narrowband light detection via internal quantum efficiency manipulation of organic photodiodes

Armin, Ardalan, Jansen-van Vuuren, Ross D., Kopidakis, Nikos, Burn, Paul L. and Meredith, Paul (2015) Narrowband light detection via internal quantum efficiency manipulation of organic photodiodes. Nature Communications, 6 6343: 1-8. doi:10.1038/ncomms7343

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Author Armin, Ardalan
Jansen-van Vuuren, Ross D.
Kopidakis, Nikos
Burn, Paul L.
Meredith, Paul
Title Narrowband light detection via internal quantum efficiency manipulation of organic photodiodes
Journal name Nature Communications   Check publisher's open access policy
ISSN 2041-1723
Publication date 2015-02-27
Year available 2015
Sub-type Article (original research)
DOI 10.1038/ncomms7343
Open Access Status File (Publisher version)
Volume 6
Issue 6343
Start page 1
End page 8
Total pages 8
Place of publication London, United Kingdom
Publisher Nature Publishing Group
Collection year 2016
Language eng
Abstract Spectrally selective light detection is vital for full-colour and near-infrared (NIR) imaging and machine vision. This is not possible with traditional broadband-absorbing inorganic semiconductors without input filtering, and is yet to be achieved for narrowband absorbing organic semiconductors. We demonstrate the first sub-100 nm full-width-at-half-maximum visible-blind red and NIR photodetectors with state-of-the-art performance across critical response metrics. These devices are based on organic photodiodes with optically thick junctions. Paradoxically, we use broadband-absorbing organic semiconductors and utilize the electro-optical properties of the junction to create the narrowest NIR-band photoresponses yet demonstrated. In this context, these photodiodes outperform the encumbent technology (input filtered inorganic semiconductor diodes) and emerging technologies such as narrow absorber organic semiconductors or quantum nanocrystals. The design concept allows for response tuning and is generic for other spectral windows. Furthermore, it is material-agnostic and applicable to other disordered and polycrystalline semiconductors.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2016 Collection
School of Chemistry and Molecular Biosciences
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Citation counts: TR Web of Science Citation Count  Cited 20 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 24 times in Scopus Article | Citations
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Created: Fri, 06 Mar 2015, 13:14:04 EST by Mrs Louise Nimwegen on behalf of School of Chemistry & Molecular Biosciences