Narrowband light detection via internal quantum efficiency manipulation of organic photodiodes

472Citations
Citations of this article
316Readers
Mendeley users who have this article in their library.

This article is free to access.

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.

Cite

CITATION STYLE

APA

Armin, A., Jansen-Van Vuuren, R. D., Kopidakis, N., Burn, P. L., & Meredith, P. (2015). Narrowband light detection via internal quantum efficiency manipulation of organic photodiodes. Nature Communications, 6. https://doi.org/10.1038/ncomms7343

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free