Flexible Vanadium Dioxide Photodetectors for Visible to Longwave Infrared Detection at Room Temperature
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- School of Physics The University of Melbourne Victoria 3010 Australia
- Department of Electrical and Electronic Engineering The University of Melbourne Victoria 3010 Australia
- Electrical Engineering and Computer Sciences University of California at Berkeley Berkeley CA 94 720 USA, Materials Sciences Division Lawrence Berkeley National Laboratory California 94 720 USA
- School of Chemistry The University of Melbourne Victoria 3010 Australia
- School of Physics The University of Melbourne Victoria 3010 Australia, Department of Electrical and Electronic Engineering The University of Melbourne Victoria 3010 Australia, ARC Centre of Excellence for Transformative Meta‐Optical Systems University of Melbourne Victoria 3010 Australia
Abstract Flexible optoelectronics is a rapidly growing field, with a wide range of potential applications. From wearable sensors to bendable solar cells, curved displays, and curved focal plane arrays, the possibilities are endless. The criticality of flexible photodetectors for many of these applications is acknowledged, however, devices that are demonstrated thus far are limited in their spectral range. In this study, flexible photodetectors are demonstrated using a VO x nanoparticle ink, with an extremely broad operating wavelength range of 0.4 to 20 µm. This ink is synthesized using a simple and scalable wet‐chemical process. These photodetectors operate at room temperature and exhibit minimal variance in performance even when bent at angles of up to 100 ° at a bend radius of 6.4 mm. In addition, rigorous strain testing of 100 bend and release cycles revealed a photoresponse with a standard deviation of only 0.55%. This combination of mechanical flexibility, wide spectral response, and ease of fabrication makes these devices highly desirable for a wide range of applications, including low‐cost wearable sensors and hyperspectral imaging systems.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1986104
- Journal Information:
- Advanced Functional Materials, Journal Name: Advanced Functional Materials Journal Issue: 42 Vol. 33; ISSN 1616-301X
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- Germany
- Language:
- English
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