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Inkjet-printed high-performance and mechanically flexible organic photodiodes for optical wireless communication
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Inkjet-printed high-performance and mechanically flexible organic photodiodes for optical wireless communication
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Journal Article
Inkjet-printed high-performance and mechanically flexible organic photodiodes for optical wireless communication
2024
Overview
Emerging areas such as the Internet of Things (IoT), wearable and wireless sensor networks require the implementation of optoelectronic devices that are cost-efficient, high-performing and capable of conforming to different surfaces. Organic semiconductors and their deposition via digital printing techniques have opened up new possibilities for optical devices that are particularly suitable for these innovative fields of application. In this work, we present the fabrication and characterization of high-performance organic photodiodes (OPDs) and their use as an optical receiver in an indoor visible light communication (VLC) system. We investigate and compare different device architectures including spin-coated, partially-printed, and fully-printed OPDs. The presented devices exhibited state-of-the-art performance and reached faster detection speeds than any other OPD previously reported as organic receivers in VLC systems. Finally, our results demonstrate that the high-performance of the fabricated OPDs can be maintained in the VLC system even after the fabrication method is transferred to a fully-inkjet-printed process deposited on a mechanically flexible substrate. A comparison between rigid and flexible samples shows absolute differences of only 0.2 b s
−1
Hz
−1
and 2.9 Mb s
−1
for the spectral efficiency and the data rate, respectively.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
