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The integration of graphene with colloidal quantum dots (QDs) that have tunable light absorption affords new opportunities for optoelectronic applications as such a hybrid system solves the problem of both quantity and mobility of photocarriers. In this work, a hybrid system comprising of monolayer graphene and self‐doped colloidal copper phosphide (Cu3−xP) QDs is developed for efficient broadband...
In article number 1701881, Wanli Ma, Shaojuan Li, Qiaoliang Bao, and co‐workers demonstrate highly responsive and flexible broadband graphene photodetectors enhanced by plasmonic colloidal nanocrystals. A flexible graphene‐Cu3–xP photodetector on a polyethylene naphthalate substrate capable of infrared (IR) light detection is realized and the photocurrent shows no obvious degradation even after bending...
In article number 1700268, Qiaoliang Bao and co‐workers, report a highly efficient flexible MoTe2/graphene heterostructure photodetector that is fabricated for near‐infrared light detection. The devices exhibit a high responsivity that is nearly one thousand times better than a commercial photodiode at 1064 nm.
2D transition metal dichalcogenides (TMDCs) have attracted considerable attention due to their impressively high performance in optoelectronic devices. However, efficient infrared (IR) photodetection has been significantly hampered because the absorption wavelength range of most TMDCs lies in the visible spectrum. In this regard, semiconducting 2D MoTe2 can be an alternative choice owing to its smaller...
Combing graphene and other two-dimentional materials in heterostructure or the hybridization of graphene with a gain material for photodetection offers the possiblity to expand the wavelength range of operation and improve performance. Here, we fabricated two novel photodetectors based on graphene-Bi2Te3 heterostructure and hybrid graphene-perovskite islands, respectively. Our results show that the...
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