Integrated circuits based on complementary metal-oxide–semiconductors (CMOS) are at the heart of the technological revolution of the past 40 years, enabling compact and low-cost microelectronic circuits and imaging systems. However, the diversification of this platform into applications other than microcircuits and visible-light cameras has been impeded by the difficulty to combine semiconductors other than silicon with CMOS. Here, we report the monolithic integration of a CMOS integrated circuit with graphene, operating as a high-mobility phototransistor. We demonstrate a high-resolution, broadband image sensor and operate it as a digital camera that is sensitive to ultraviolet, visible and infrared light (300–2,000 nm). The demonstrated graphene–CMOS integration is pivotal for incorporating 2D materials into the next-generation microelectronics, sensor arrays, low-power integrated photonics and CMOS imaging systems covering visible, infrared and terahertz frequencies.
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The authors acknowledge M. Montagut and F. Vialla for creating original artwork. F.K. and G.K. acknowledge financial support from the Spanish Ministry of Economy and Competitiveness, through the ‘Severo Ochoa’ Programme for Centres of Excellence in R&D (SEV-2015–0522), support by Fundacio Cellex Barcelona, and CERCA Programme/Generalitat de Catalunya, from the Government of Catalonia through the SGR grant (2014-SGR-1535) and from the Ajuntament de Barcelona. Furthermore, the research leading to these results has received funding from the European Union Seventh Framework Programme under grant agreement no. 696656 Graphene Flagship and ERC Proof-of-concept GRAQUADOT (reference 620233). G.K. acknowledges financial support from the Spanish Ministry of Economy and Competitiveness (MINECO) and the ‘Fondo Europeo de Desarrollo Regional’ (FEDER) through grant MAT2014-56210-R as well as AGAUR under the SGR grant (2014SGR1548).
The authors declare no competing financial interests.
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Goossens, S., Navickaite, G., Monasterio, C. et al. Broadband image sensor array based on graphene–CMOS integration. Nature Photon 11, 366–371 (2017). https://doi.org/10.1038/nphoton.2017.75
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