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Liu X, Liu N, Liu M, et al. Graphene nanomesh photodetector with effective charge tunnelling from quantum dots. Nanoscale. 2015;7(9):4242-9doi: 10.1039/c4nr06883a.
Liu, X., Liu, N., Liu, M., Tao, Z., Kuang, W., Ji, X., Chen, J., Lei, W., Dai, Q., Li, C., Li, X., & Nathan, A. (2015). Graphene nanomesh photodetector with effective charge tunnelling from quantum dots. Nanoscale, 7(9), 4242-9. https://doi.org/10.1039/c4nr06883a
Liu, Xiang, et al. "Graphene nanomesh photodetector with effective charge tunnelling from quantum dots." Nanoscale vol. 7,9 (2015): 4242-9. doi: https://doi.org/10.1039/c4nr06883a
Liu X, Liu N, Liu M, Tao Z, Kuang W, Ji X, Chen J, Lei W, Dai Q, Li C, Li X, Nathan A. Graphene nanomesh photodetector with effective charge tunnelling from quantum dots. Nanoscale. 2015 Mar 07;7(9):4242-9. doi: 10.1039/c4nr06883a. PMID: 25673220.
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Nanoscale. 2015 Mar 07;7(9):4242-9. doi: 10.1039/c4nr06883a.

Graphene nanomesh photodetector with effective charge tunnelling from quantum dots.

Nanoscale

Xiang Liu, Nianze Liu, Mingju Liu, Zhi Tao, Wenjian Kuang, Xiangbing Ji, Jing Chen, Wei Lei, Qing Dai, Chi Li, Xuehua Li, Arokia Nathan

Affiliations

  1. Electronic Science and Engineering School, Southeast University, Nanjing, China. [email protected].

PMID: 25673220 DOI: 10.1039/c4nr06883a

Abstract

Graphene nanomesh (GNM)-based optoelectronics integrated with quantum dots (QDs) are investigated in this article. The charge transfer mechanism in the QDs/GNM interface is probed in four terminal gated FET-type photodetectors. The insulating ligand is used to make the GNM/ligand/QDs vertically behave like a metal/insulate/semiconductor (MIS) structure to facilitate the charge tunnelling. With the current constraint effect of the GNM and the effective charge tunnelling, a high-performance photodetector is fabricated with higher responsivity, higher on/off ratio and shorter response time. The results of our analysis and experimental approach can be extended to future graphene-based photodetectors, as long as suitable ligands and an effective architecture are chosen for this type of device.

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