CUED Publications database

Black phosphorus ink formulation for inkjet printing of optoelectronics and photonics

Hu, G and Albrow-Owen, T and Jin, X and Ali, A and Hu, Y and Howe, RCT and Shehzad, K and Yang, Z and Zhu, X and Woodward, RI and Wu, TC and Jussila, H and Wu, JB and Peng, P and Tan, PH and Sun, Z and Kelleher, EJR and Zhang, M and Xu, Y and Hasan, T (2017) Black phosphorus ink formulation for inkjet printing of optoelectronics and photonics. Nature Communications, 8. 278-.

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© 2017 The Author(s). Black phosphorus is a two-dimensional material of great interest, in part because of its high carrier mobility and thickness dependent direct bandgap. However, its instability under ambient conditions limits material deposition options for device fabrication. Here we show a black phosphorus ink that can be reliably inkjet printed, enabling scalable development of optoelectronic and photonic devices. Our binder-free ink suppresses coffee ring formation through induced recirculating Marangoni flow, and supports excellent consistency (< 2% variation) and spatial uniformity (< 3.4% variation), without substrate pre-treatment. Due to rapid ink drying (< 10 s at < 60 °C), printing causes minimal oxidation. Following encapsulation, the printed black phosphorus is stable against long-term (> 30 days) oxidation. We demonstrate printed black phosphorus as a passive switch for ultrafast lasers, stable against intense irradiation, and as a visible to near-infrared photodetector with high responsivities. Our work highlights the promise of this material as a functional ink platform for printed devices.

Item Type: Article
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 17 Aug 2017 01:20
Last Modified: 04 Mar 2021 04:10
DOI: 10.1038/s41467-017-00358-1