High detectivity, near-infrared organic printed photodiode

Jasmine Jan, Anthony Vogliano, Maruf Ahmed, Maxime Babics, Iain McCulloch, Ana C. Arias, Anju Toor

Research output: Contribution to journalArticlepeer-review

Abstract

Sensitive detection of near-infrared (NIR) light could enable several important applications in optical communications, quality control, and sensing in industries, such as automotive and aerospace, and human-machine interface (HMI) biometrics. In this work, we demonstrate NIR photodetectors based on an organic bulk heterojunction absorbing layer with state-of-the-art performance across critical response metrics. The external quantum efficiency spectrum of the devices presented extends from 500 nm to approximately 900 nm covering both visible and NIR wavelengths. The organic photodiodes (OPDs) show specific detectivities of around 7.4 × 10 11 Jones, which is comparable to the state of the art organic devices. Furthermore, the NIR OPD devices show a linear dynamic range (LDR) of ∼ 74 dB.

Original languageEnglish (US)
Article number203302
JournalApplied Physics Letters
Volume124
Issue number20
DOIs
StatePublished - May 13 2024
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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