Printed Graphene Electrode for ITO/MoS2/Graphene Photodiode Application

Amal AlAmri, Tien Khee Ng, Nour El I Boukortt, Boon S. Ooi

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Lightweight and flexible electronics have recently emerged at the forefront of optoelectronic applications. In this regard, graphene electrodes enable opportunities for new photodiode devices. In this paper, we formulated and tested graphene ink using the standard inkjet printing technique. It was shown that the maximum conductivity of ink was achieved for 14 print passes of the graphene layer. Moreover, we deposited Molybdenum Disulfide (MoS2) ink in the same pattern and used it as an active layer. We put MoS2 ink on an Indium-Tin-Oxide (ITO) glass substrate and then deposited graphene ink as a top electrode to fabricate an ITO/MoS2/graphene device. The fabricated device showed good rectification behavior and high ON/OFF switching behavior with a max photocurrent of 15 µA at +2 V. The technique thus paves the way for low-cost, low-temperature processing of electronics and one-step fabrication.
Original languageEnglish (US)
Pages (from-to)831
Issue number5
StatePublished - Apr 26 2023

Bibliographical note

KAUST Repository Item: Exported on 2023-05-02
Acknowledgements: This research work was funded by the Institutional Fund Project under grant no. (IFPHI 784-665-1442). Therefore, the authors gratefully acknowledge financial support from the Ministry of Education, King Abdulaziz University, DSR, Jeddah, Saudi Arabia. The authors gratefully acknowledge technical support from the Ministry of Education, King Abdulaziz University, DSR, Jeddah, Saudi Arabia, in addition to King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia. The authors would like to thank Alessandro Genovese for his help in performing the SEM/TEM images.


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